Merge "AAPT2: Be more strict parsing references"
diff --git a/api/current.txt b/api/current.txt
index dabc084..bb751cc 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -933,6 +933,7 @@
     field public static final int port = 16842793; // 0x1010029
     field public static final int positiveButtonText = 16843253; // 0x10101f5
     field public static final int preferenceCategoryStyle = 16842892; // 0x101008c
+    field public static final int preferenceFragmentStyle = 16844039; // 0x1010507
     field public static final int preferenceInformationStyle = 16842893; // 0x101008d
     field public static final int preferenceLayoutChild = 16842900; // 0x1010094
     field public static final int preferenceScreenStyle = 16842891; // 0x101008b
@@ -1710,11 +1711,13 @@
     field public static final int icon = 16908294; // 0x1020006
     field public static final int icon1 = 16908295; // 0x1020007
     field public static final int icon2 = 16908296; // 0x1020008
+    field public static final int icon_frame = 16908350; // 0x102003e
     field public static final int input = 16908297; // 0x1020009
     field public static final int inputArea = 16908318; // 0x102001e
     field public static final int inputExtractEditText = 16908325; // 0x1020025
     field public static final int keyboardView = 16908326; // 0x1020026
     field public static final int list = 16908298; // 0x102000a
+    field public static final int list_container = 16908351; // 0x102003f
     field public static final int mask = 16908334; // 0x102002e
     field public static final int message = 16908299; // 0x102000b
     field public static final int navigationBarBackground = 16908336; // 0x1020030
@@ -1734,6 +1737,7 @@
     field public static final int stopSelectingText = 16908329; // 0x1020029
     field public static final int summary = 16908304; // 0x1020010
     field public static final int switchInputMethod = 16908324; // 0x1020024
+    field public static final int switch_widget = 16908352; // 0x1020040
     field public static final int tabcontent = 16908305; // 0x1020011
     field public static final int tabhost = 16908306; // 0x1020012
     field public static final int tabs = 16908307; // 0x1020013
@@ -5707,6 +5711,7 @@
     method public boolean getCrossProfileCallerIdDisabled(android.content.ComponentName);
     method public java.util.List<java.lang.String> getCrossProfileWidgetProviders(android.content.ComponentName);
     method public int getCurrentFailedPasswordAttempts();
+    method public java.lang.String getDeviceOwnerLockScreenInfo();
     method public java.util.List<byte[]> getInstalledCaCerts(android.content.ComponentName);
     method public int getKeyguardDisabledFeatures(android.content.ComponentName);
     method public int getMaximumFailedPasswordsForWipe(android.content.ComponentName);
@@ -5759,6 +5764,7 @@
     method public void setCameraDisabled(android.content.ComponentName, boolean);
     method public void setCertInstallerPackage(android.content.ComponentName, java.lang.String) throws java.lang.SecurityException;
     method public void setCrossProfileCallerIdDisabled(android.content.ComponentName, boolean);
+    method public boolean setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.String);
     method public void setGlobalSetting(android.content.ComponentName, java.lang.String, java.lang.String);
     method public boolean setKeyguardDisabled(android.content.ComponentName, boolean);
     method public void setKeyguardDisabledFeatures(android.content.ComponentName, int);
@@ -9914,6 +9920,7 @@
   public static class Resources.NotFoundException extends java.lang.RuntimeException {
     ctor public Resources.NotFoundException();
     ctor public Resources.NotFoundException(java.lang.String);
+    ctor public Resources.NotFoundException(java.lang.String, java.lang.Exception);
   }
 
   public final class Resources.Theme {
diff --git a/api/system-current.txt b/api/system-current.txt
index 19d9aa2..65ecdc1 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -1025,6 +1025,7 @@
     field public static final int port = 16842793; // 0x1010029
     field public static final int positiveButtonText = 16843253; // 0x10101f5
     field public static final int preferenceCategoryStyle = 16842892; // 0x101008c
+    field public static final int preferenceFragmentStyle = 16844039; // 0x1010507
     field public static final int preferenceInformationStyle = 16842893; // 0x101008d
     field public static final int preferenceLayoutChild = 16842900; // 0x1010094
     field public static final int preferenceScreenStyle = 16842891; // 0x101008b
@@ -1806,11 +1807,13 @@
     field public static final int icon = 16908294; // 0x1020006
     field public static final int icon1 = 16908295; // 0x1020007
     field public static final int icon2 = 16908296; // 0x1020008
+    field public static final int icon_frame = 16908350; // 0x102003e
     field public static final int input = 16908297; // 0x1020009
     field public static final int inputArea = 16908318; // 0x102001e
     field public static final int inputExtractEditText = 16908325; // 0x1020025
     field public static final int keyboardView = 16908326; // 0x1020026
     field public static final int list = 16908298; // 0x102000a
+    field public static final int list_container = 16908351; // 0x102003f
     field public static final int mask = 16908334; // 0x102002e
     field public static final int message = 16908299; // 0x102000b
     field public static final int navigationBarBackground = 16908336; // 0x1020030
@@ -1830,6 +1833,7 @@
     field public static final int stopSelectingText = 16908329; // 0x1020029
     field public static final int summary = 16908304; // 0x1020010
     field public static final int switchInputMethod = 16908324; // 0x1020024
+    field public static final int switch_widget = 16908352; // 0x1020040
     field public static final int tabcontent = 16908305; // 0x1020011
     field public static final int tabhost = 16908306; // 0x1020012
     field public static final int tabs = 16908307; // 0x1020013
@@ -5833,6 +5837,7 @@
     method public deprecated java.lang.String getDeviceInitializerApp();
     method public deprecated android.content.ComponentName getDeviceInitializerComponent();
     method public java.lang.String getDeviceOwner();
+    method public java.lang.String getDeviceOwnerLockScreenInfo();
     method public java.util.List<byte[]> getInstalledCaCerts(android.content.ComponentName);
     method public int getKeyguardDisabledFeatures(android.content.ComponentName);
     method public int getMaximumFailedPasswordsForWipe(android.content.ComponentName);
@@ -5891,6 +5896,7 @@
     method public void setCameraDisabled(android.content.ComponentName, boolean);
     method public void setCertInstallerPackage(android.content.ComponentName, java.lang.String) throws java.lang.SecurityException;
     method public void setCrossProfileCallerIdDisabled(android.content.ComponentName, boolean);
+    method public boolean setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.String);
     method public void setGlobalSetting(android.content.ComponentName, java.lang.String, java.lang.String);
     method public boolean setKeyguardDisabled(android.content.ComponentName, boolean);
     method public void setKeyguardDisabledFeatures(android.content.ComponentName, int);
@@ -10255,6 +10261,7 @@
   public static class Resources.NotFoundException extends java.lang.RuntimeException {
     ctor public Resources.NotFoundException();
     ctor public Resources.NotFoundException(java.lang.String);
+    ctor public Resources.NotFoundException(java.lang.String, java.lang.Exception);
   }
 
   public final class Resources.Theme {
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index 351064a..65de4ca 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -1558,6 +1558,16 @@
             readFromParcel(source);
         }
 
+        /**
+         * Resets this info state to the initial state.
+         * @hide
+         */
+        public void reset() {
+            taskWidth = 0;
+            taskHeight = 0;
+            screenOrientation = 0;
+        }
+
         /** @hide */
         public void saveToXml(XmlSerializer out) throws IOException {
             out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth));
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index 65c63f6..4449e4f 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -2611,6 +2611,14 @@
             return true;
         }
 
+        case UPDATE_DEVICE_OWNER_TRANSACTION: {
+            data.enforceInterface(IActivityManager.descriptor);
+            String packageName = data.readString();
+            updateDeviceOwner(packageName);
+            reply.writeNoException();
+            return true;
+        }
+
         case GET_PACKAGE_PROCESS_STATE_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             String pkg = data.readString();
@@ -6155,6 +6163,18 @@
     }
 
     @Override
+    public void updateDeviceOwner(String packageName) throws RemoteException {
+        Parcel data = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        data.writeInterfaceToken(IActivityManager.descriptor);
+        data.writeString(packageName);
+        mRemote.transact(UPDATE_DEVICE_OWNER_TRANSACTION, data, reply, 0);
+        reply.readException();
+        data.recycle();
+        reply.recycle();
+    }
+
+    @Override
     public int getPackageProcessState(String packageName, String callingPackage)
             throws RemoteException {
         Parcel data = Parcel.obtain();
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index cf2452b..b69a480 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -518,6 +518,7 @@
     public void setVoiceKeepAwake(IVoiceInteractionSession session, boolean keepAwake)
             throws RemoteException;
     public void updateLockTaskPackages(int userId, String[] packages) throws RemoteException;
+    public void updateDeviceOwner(String packageName) throws RemoteException;
 
     public int getPackageProcessState(String packageName, String callingPackage)
             throws RemoteException;
@@ -880,6 +881,7 @@
     int NOTE_ALARM_FINISH_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+292;
     int GET_PACKAGE_PROCESS_STATE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+293;
     int SHOW_LOCK_TASK_ESCAPE_MESSAGE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+294;
+    int UPDATE_DEVICE_OWNER_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+295;
     int KEYGUARD_GOING_AWAY_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+296;
     int REGISTER_UID_OBSERVER_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+297;
     int UNREGISTER_UID_OBSERVER_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+298;
diff --git a/core/java/android/app/admin/DevicePolicyManager.java b/core/java/android/app/admin/DevicePolicyManager.java
index b89c5a6..faed7a0 100644
--- a/core/java/android/app/admin/DevicePolicyManager.java
+++ b/core/java/android/app/admin/DevicePolicyManager.java
@@ -122,7 +122,10 @@
      * Provisioning adds a managed profile and sets the MDM as the profile owner who has full
      * control over the profile.
      *
-     * In version {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this intent must contain the
+     * <p>It is possible to check if provisioning is allowed or not by querying the method
+     * {@link #isProvisioningAllowed(String)}.
+     *
+     * <p>In version {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this intent must contain the
      * extra {@link #EXTRA_PROVISIONING_DEVICE_ADMIN_PACKAGE_NAME}.
      * As of {@link android.os.Build.VERSION_CODES#M}, it should contain the extra
      * {@link #EXTRA_PROVISIONING_DEVICE_ADMIN_COMPONENT_NAME} instead, although specifying only
@@ -157,9 +160,8 @@
      * been completed. Use {@link #isProvisioningAllowed(String)} to check if provisioning is
      * allowed.
      *
-     * This intent should contain the extra {@link #EXTRA_PROVISIONING_DEVICE_ADMIN_COMPONENT_NAME},
-     * although specifying only {@link #EXTRA_PROVISIONING_DEVICE_ADMIN_PACKAGE_NAME} is also
-     * supported.
+     * <p>This intent should contain the extra
+     * {@link #EXTRA_PROVISIONING_DEVICE_ADMIN_COMPONENT_NAME}.
      *
      * <p> If provisioning fails, the device returns to its previous state.
      *
@@ -185,10 +187,10 @@
      * employee or client.
      *
      * <p> An intent with this action can be sent only on an unprovisioned device.
-     * It is possible to check if the device is provisioned or not by looking at
-     * {@link android.provider.Settings.Global#DEVICE_PROVISIONED}
+     * It is possible to check if provisioning is allowed or not by querying the method
+     * {@link #isProvisioningAllowed(String)}.
      *
-     * The intent contains the following extras:
+     * <p>The intent contains the following extras:
      * <ul>
      * <li>{@link #EXTRA_PROVISIONING_DEVICE_ADMIN_COMPONENT_NAME}</li>
      * <li>{@link #EXTRA_PROVISIONING_SKIP_ENCRYPTION}, optional</li>
@@ -212,6 +214,53 @@
         = "android.app.action.PROVISION_MANAGED_DEVICE";
 
     /**
+     * Activity action: Starts the provisioning flow which sets up a managed device.
+     * Must be started with {@link android.app.Activity#startActivityForResult(Intent, int)}.
+     *
+     * <p>NOTE: This is only supported on split system user devices, and puts the device into a
+     * management state that is distinct from that reached by
+     * {@link #ACTION_PROVISION_MANAGED_DEVICE} - specifically the device owner runs on the system
+     * user, and only has control over device-wide policies, not individual users and their data.
+     * The primary benefit is that multiple non-system users are supported when provisioning using
+     * this form of device management.
+     *
+     * <p> During device owner provisioning a device admin app is set as the owner of the device.
+     * A device owner has full control over the device. The device owner can not be modified by the
+     * user.
+     *
+     * <p> A typical use case would be a device that is owned by a company, but used by either an
+     * employee or client.
+     *
+     * <p> An intent with this action can be sent only on an unprovisioned device.
+     * It is possible to check if provisioning is allowed or not by querying the method
+     * {@link #isProvisioningAllowed(String)}.
+     *
+     * <p>The intent contains the following extras:
+     * <ul>
+     * <li>{@link #EXTRA_PROVISIONING_DEVICE_ADMIN_COMPONENT_NAME}</li>
+     * <li>{@link #EXTRA_PROVISIONING_SKIP_ENCRYPTION}, optional</li>
+     * <li>{@link #EXTRA_PROVISIONING_LEAVE_ALL_SYSTEM_APPS_ENABLED}, optional</li>
+     * <li>{@link #EXTRA_PROVISIONING_ADMIN_EXTRAS_BUNDLE}, optional</li>
+     * </ul>
+     *
+     * <p> When device owner provisioning has completed, an intent of the type
+     * {@link DeviceAdminReceiver#ACTION_PROFILE_PROVISIONING_COMPLETE} is broadcast to the
+     * device owner.
+     *
+     * <p> If provisioning fails, the device is factory reset.
+     *
+     * <p>A result code of {@link android.app.Activity#RESULT_OK} implies that the synchronous part
+     * of the provisioning flow was successful, although this doesn't guarantee the full flow will
+     * succeed. Conversely a result code of {@link android.app.Activity#RESULT_CANCELED} implies
+     * that the user backed-out of provisioning, or some precondition for provisioning wasn't met.
+     *
+     * @hide
+     */
+    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
+    public static final String ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE
+        = "android.app.action.PROVISION_MANAGED_SHAREABLE_DEVICE";
+
+    /**
      * A {@link android.os.Parcelable} extra of type {@link android.os.PersistableBundle} that
      * allows a mobile device management application or NFC programmer application which starts
      * managed provisioning to pass data to the management application instance after provisioning.
@@ -595,7 +644,7 @@
      * extra field. This will invoke a UI to bring the user through adding the profile owner admin
      * to remotely control restrictions on the user.
      *
-     * <p>The intent must be invoked via {@link Activity#startActivityForResult} to receive the
+     * <p>The intent must be invoked via {@link Activity#startActivityForResult()} to receive the
      * result of whether or not the user approved the action. If approved, the result will
      * be {@link Activity#RESULT_OK} and the component will be set as an active admin as well
      * as a profile owner.
@@ -1662,7 +1711,16 @@
      * Force a new device unlock password (the password needed to access the
      * entire device, not for individual accounts) on the user.  This takes
      * effect immediately.
-     * The given password must be sufficient for the
+     *
+     * <p>Calling this from a managed profile that shares the password with the owner profile
+     * will throw a security exception.
+     *
+     * <p><em>Note: This API has been limited as of {@link android.os.Build.VERSION_CODES#N} for
+     * device admins that are not device owner and not profile owner.
+     * The password can now only be changed if there is currently no password set.  Device owner
+     * and profile owner can still do this.</em>
+     *
+     * <p>The given password must be sufficient for the
      * current password quality and length constraints as returned by
      * {@link #getPasswordQuality(ComponentName)} and
      * {@link #getPasswordMinimumLength(ComponentName)}; if it does not meet
@@ -1672,19 +1730,20 @@
      * the currently active quality will be increased to match.
      *
      * <p>Calling with a null or empty password will clear any existing PIN,
-     * pattern or password if the current password constraints allow it.
+     * pattern or password if the current password constraints allow it. <em>Note: This will not
+     * work in {@link android.os.Build.VERSION_CODES#N} and later for device admins that are not
+     * device owner and not profile owner.  Once set, the password cannot be changed to null or
+     * empty, except by device owner or profile owner.</em>
      *
      * <p>The calling device admin must have requested
      * {@link DeviceAdminInfo#USES_POLICY_RESET_PASSWORD} to be able to call
      * this method; if it has not, a security exception will be thrown.
      *
-     * <p>Calling this from a managed profile will throw a security exception.
-     *
      * @param password The new password for the user. Null or empty clears the password.
      * @param flags May be 0 or combination of {@link #RESET_PASSWORD_REQUIRE_ENTRY} and
      *              {@link #RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT}.
      * @return Returns true if the password was applied, or false if it is
-     * not acceptable for the current constraints.
+     * not acceptable for the current constraints or if the user has not been decrypted yet.
      */
     public boolean resetPassword(String password, int flags) {
         if (mService != null) {
@@ -1792,7 +1851,7 @@
     public void wipeData(int flags) {
         if (mService != null) {
             try {
-                mService.wipeData(flags, myUserId());
+                mService.wipeData(flags);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed talking with device policy service", e);
             }
@@ -2668,14 +2727,14 @@
      * does *not* check weather the device owner is actually running on the current user.
      */
     public boolean isDeviceOwnerApp(String packageName) {
-        if (mService != null) {
-            try {
-                return mService.isDeviceOwnerPackage(packageName);
-            } catch (RemoteException e) {
-                Log.w(TAG, "Failed talking with device policy service", e);
-            }
+        if (packageName == null) {
+            return false;
         }
-        return false;
+        final ComponentName deviceOwner = getDeviceOwnerComponent();
+        if (deviceOwner == null) {
+            return false;
+        }
+        return packageName.equals(deviceOwner.getPackageName());
     }
 
     /**
@@ -2869,9 +2928,6 @@
      */
     public boolean setProfileOwner(@NonNull ComponentName admin, @Deprecated String ownerName,
             int userHandle) throws IllegalArgumentException {
-        if (admin == null) {
-            throw new NullPointerException("admin cannot be null");
-        }
         if (mService != null) {
             try {
                 if (ownerName == null) {
@@ -2887,6 +2943,42 @@
     }
 
     /**
+     * Sets the device owner information to be shown on the lock screen.
+     *
+     * <p>If the device owner information is {@code null} or empty then the device owner info is
+     * cleared and the user owner info is shown on the lock screen if it is set.
+     *
+     * @param admin The name of the admin component to check.
+     * @param info Device owner information which will be displayed instead of the user
+     * owner info.
+     * @return Whether the device owner information has been set.
+     */
+    public boolean setDeviceOwnerLockScreenInfo(@NonNull ComponentName admin, String info) {
+        if (mService != null) {
+            try {
+                return mService.setDeviceOwnerLockScreenInfo(admin, info);
+            } catch (RemoteException re) {
+                Log.w(TAG, "Failed talking with device policy service", re);
+            }
+        }
+        return false;
+    }
+
+    /**
+     * @return The device owner information. If it is not set returns {@code null}.
+     */
+    public String getDeviceOwnerLockScreenInfo() {
+        if (mService != null) {
+            try {
+                return mService.getDeviceOwnerLockScreenInfo();
+            } catch (RemoteException re) {
+                Log.w(TAG, "Failed talking with device policy service", re);
+            }
+        }
+        return null;
+    }
+
+    /**
      * Sets the enabled state of the profile. A profile should be enabled only once it is ready to
      * be used. Only the profile owner can call this.
      *
@@ -2996,7 +3088,7 @@
 
     /**
      * @hide
-     * @param userId The user for whom to fetch the profile owner name, if any.
+     * @param user The user for whom to fetch the profile owner name, if any.
      * @return the human readable name of the organisation associated with this profile owner or
      *         null if one is not set.
      * @throws IllegalArgumentException if the userId is invalid.
diff --git a/core/java/android/app/admin/DevicePolicyManagerInternal.java b/core/java/android/app/admin/DevicePolicyManagerInternal.java
index 5a46cd5..4270e16 100644
--- a/core/java/android/app/admin/DevicePolicyManagerInternal.java
+++ b/core/java/android/app/admin/DevicePolicyManagerInternal.java
@@ -80,10 +80,4 @@
      * This method always returns a new {@link Bundle}.
      */
     public abstract Bundle getComposedUserRestrictions(int userId, Bundle inBundle);
-
-    /**
-     * @return true if a package is a device admin (possibly DO or PO) running on
-     * user {@code userId}.
-     */
-    public abstract boolean isDeviceAdminPackage(int userId, String packageName);
 }
diff --git a/core/java/android/app/admin/IDevicePolicyManager.aidl b/core/java/android/app/admin/IDevicePolicyManager.aidl
index 95a22ef..7601cf2 100644
--- a/core/java/android/app/admin/IDevicePolicyManager.aidl
+++ b/core/java/android/app/admin/IDevicePolicyManager.aidl
@@ -81,7 +81,7 @@
 
     void lockNow();
 
-    void wipeData(int flags, int userHandle);
+    void wipeData(int flags);
 
     ComponentName setGlobalProxy(in ComponentName admin, String proxySpec, String exclusionList);
     ComponentName getGlobalProxyAdmin(int userHandle);
@@ -114,7 +114,6 @@
     void reportSuccessfulPasswordAttempt(int userHandle);
 
     boolean setDeviceOwner(in ComponentName who, String ownerName, int userId);
-    boolean isDeviceOwnerPackage(String packageName);
     ComponentName getDeviceOwner();
     String getDeviceOwnerName();
     void clearDeviceOwner(String packageName);
@@ -127,6 +126,9 @@
     void clearProfileOwner(in ComponentName who);
     boolean hasUserSetupCompleted();
 
+    boolean setDeviceOwnerLockScreenInfo(in ComponentName who, String deviceOwnerInfo);
+    String getDeviceOwnerLockScreenInfo();
+
     boolean installCaCert(in ComponentName admin, in byte[] certBuffer);
     void uninstallCaCerts(in ComponentName admin, in String[] aliases);
     void enforceCanManageCaCerts(in ComponentName admin);
diff --git a/core/java/android/content/pm/ApplicationInfo.java b/core/java/android/content/pm/ApplicationInfo.java
index 9c880d3..52ec4cc 100644
--- a/core/java/android/content/pm/ApplicationInfo.java
+++ b/core/java/android/content/pm/ApplicationInfo.java
@@ -479,6 +479,14 @@
     public static final int PRIVATE_FLAG_ENCRYPTION_AWARE = 1 << 6;
 
     /**
+     * Value for {@link #privateFlags}: set to {@code true} if the application
+     * is AutoPlay.
+     *
+     * {@hide}
+     */
+    public static final int PRIVATE_FLAG_AUTOPLAY = 1<<6;
+
+    /**
      * Private/hidden flags. See {@code PRIVATE_FLAG_...} constants.
      * {@hide}
      */
@@ -1049,6 +1057,13 @@
     /**
      * @hide
      */
+    public boolean isAutoPlayApp() {
+        return (privateFlags & ApplicationInfo.PRIVATE_FLAG_AUTOPLAY) != 0;
+    }
+
+    /**
+     * @hide
+     */
     @Override protected ApplicationInfo getApplicationInfo() {
         return this;
     }
diff --git a/core/java/android/content/pm/AppsQueryHelper.java b/core/java/android/content/pm/AppsQueryHelper.java
index a5a8e3f..084bc18 100644
--- a/core/java/android/content/pm/AppsQueryHelper.java
+++ b/core/java/android/content/pm/AppsQueryHelper.java
@@ -18,13 +18,11 @@
 
 import android.Manifest;
 import android.app.AppGlobals;
-import android.content.Context;
 import android.content.Intent;
 import android.os.RemoteException;
 import android.os.UserHandle;
 import android.util.ArraySet;
-import android.view.inputmethod.InputMethodInfo;
-import android.view.inputmethod.InputMethodManager;
+import android.view.inputmethod.InputMethod;
 
 import com.android.internal.annotations.VisibleForTesting;
 
@@ -44,36 +42,37 @@
     public static int GET_NON_LAUNCHABLE_APPS = 1;
 
     /**
-     * Return apps with {@link android.Manifest.permission#INTERACT_ACROSS_USERS} permission
+     * Return apps with {@link Manifest.permission#INTERACT_ACROSS_USERS} permission
      */
     public static int GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM = 1 << 1;
 
     /**
-     * Return all input methods that are marked as default.
-     * <p>When this flag is set, {@code user} specified in
-     * {@link #queryApps(int, boolean, UserHandle)} must be
-     * {@link UserHandle#myUserId user of the current process}.
+     * Return all input methods available for the current user.
      */
-    public static int GET_DEFAULT_IMES = 1 << 2;
+    public static int GET_IMES = 1 << 2;
 
-    private final Context mContext;
+    private final IPackageManager mPackageManager;
     private List<ApplicationInfo> mAllApps;
 
-    public AppsQueryHelper(Context context) {
-        mContext = context;
+    public AppsQueryHelper(IPackageManager packageManager) {
+        mPackageManager = packageManager;
+    }
+
+    public AppsQueryHelper() {
+        this(AppGlobals.getPackageManager());
     }
 
     /**
      * Return a List of all packages that satisfy a specified criteria.
      * @param flags search flags. Use any combination of {@link #GET_NON_LAUNCHABLE_APPS},
-     * {@link #GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM} or {@link #GET_DEFAULT_IMES}.
+     * {@link #GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM} or {@link #GET_IMES}.
      * @param systemAppsOnly if true, only system apps will be returned
      * @param user user, whose apps are queried
      */
     public List<String> queryApps(int flags, boolean systemAppsOnly, UserHandle user) {
         boolean nonLaunchableApps = (flags & GET_NON_LAUNCHABLE_APPS) > 0;
         boolean interactAcrossUsers = (flags & GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM) > 0;
-        boolean defaultImes = (flags & GET_DEFAULT_IMES) > 0;
+        boolean imes = (flags & GET_IMES) > 0;
         if (mAllApps == null) {
             mAllApps = getAllApps(user.getIdentifier());
         }
@@ -113,7 +112,6 @@
                 }
             }
         }
-
         if (interactAcrossUsers) {
             final List<PackageInfo> packagesHoldingPermissions = getPackagesHoldingPermission(
                     Manifest.permission.INTERACT_ACROSS_USERS, user.getIdentifier());
@@ -129,29 +127,18 @@
             }
         }
 
-        if (defaultImes) {
-            if (UserHandle.myUserId() != user.getIdentifier()) {
-                throw new IllegalArgumentException("Specified user handle " + user
-                        + " is not a user of the current process.");
-            }
-            List<InputMethodInfo> imis = getInputMethodList();
-            int imisSize = imis.size();
-            ArraySet<String> defaultImePackages = new ArraySet<>();
-            for (int i = 0; i < imisSize; i++) {
-                InputMethodInfo imi = imis.get(i);
-                if (imi.isDefault(mContext)) {
-                    defaultImePackages.add(imi.getPackageName());
-                }
-            }
-            final int allAppsSize = mAllApps.size();
-            for (int i = 0; i < allAppsSize; i++) {
-                final ApplicationInfo appInfo = mAllApps.get(i);
-                if (systemAppsOnly && !appInfo.isSystemApp()) {
+        if (imes) {
+            final List<ResolveInfo> resolveInfos = queryIntentServicesAsUser(
+                    new Intent(InputMethod.SERVICE_INTERFACE), user.getIdentifier());
+            final int resolveInfosSize = resolveInfos.size();
+
+            for (int i = 0; i < resolveInfosSize; i++) {
+                ServiceInfo serviceInfo = resolveInfos.get(i).serviceInfo;
+                if (systemAppsOnly && !serviceInfo.applicationInfo.isSystemApp()) {
                     continue;
                 }
-                final String packageName = appInfo.packageName;
-                if (defaultImePackages.contains(packageName)) {
-                    result.add(packageName);
+                if (!result.contains(serviceInfo.packageName)) {
+                    result.add(serviceInfo.packageName);
                 }
             }
         }
@@ -163,9 +150,8 @@
     @SuppressWarnings("unchecked")
     protected List<ApplicationInfo> getAllApps(int userId) {
         try {
-            return AppGlobals.getPackageManager().getInstalledApplications(
-                    PackageManager.GET_UNINSTALLED_PACKAGES
-                            | PackageManager.GET_DISABLED_COMPONENTS, userId).getList();
+            return mPackageManager.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES
+                    | PackageManager.GET_DISABLED_COMPONENTS, userId).getList();
         } catch (RemoteException e) {
             throw new IllegalStateException("Package manager has died", e);
         }
@@ -173,17 +159,22 @@
 
     @VisibleForTesting
     protected List<ResolveInfo> queryIntentActivitiesAsUser(Intent intent, int userId) {
-        return mContext.getPackageManager()
-                .queryIntentActivitiesAsUser(intent, PackageManager.GET_DISABLED_COMPONENTS
-                        | PackageManager.GET_UNINSTALLED_PACKAGES, userId);
+        try {
+            return mPackageManager.queryIntentActivities(intent, null,
+                    PackageManager.GET_DISABLED_COMPONENTS
+                            | PackageManager.GET_UNINSTALLED_PACKAGES,
+                    userId);
+        } catch (RemoteException e) {
+            throw new IllegalStateException("Package manager has died", e);
+        }
     }
 
     @VisibleForTesting
-    @SuppressWarnings("unchecked")
-    protected List<PackageInfo> getPackagesHoldingPermission(String perm, int userId) {
+    protected List<ResolveInfo> queryIntentServicesAsUser(Intent intent, int userId) {
         try {
-            return AppGlobals.getPackageManager().getPackagesHoldingPermissions(new String[]{perm},
-                    0, userId).getList();
+            return mPackageManager.queryIntentServices(intent, null,
+                    PackageManager.GET_META_DATA
+                            | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, userId);
         } catch (RemoteException e) {
             throw new IllegalStateException("Package manager has died", e);
         }
@@ -191,9 +182,13 @@
 
     @VisibleForTesting
     @SuppressWarnings("unchecked")
-    protected List<InputMethodInfo> getInputMethodList() {
-        InputMethodManager imm = (InputMethodManager)
-                mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
-        return imm.getInputMethodList();
+    protected List<PackageInfo> getPackagesHoldingPermission(String perm, int userId) {
+        try {
+            return mPackageManager.getPackagesHoldingPermissions(new String[]{perm}, 0,
+                    userId).getList();
+        } catch (RemoteException e) {
+            throw new IllegalStateException("Package manager has died", e);
+        }
     }
+
 }
diff --git a/core/java/android/content/res/Resources.java b/core/java/android/content/res/Resources.java
index 0606e35..7b3dde4 100644
--- a/core/java/android/content/res/Resources.java
+++ b/core/java/android/content/res/Resources.java
@@ -48,7 +48,6 @@
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Trace;
-import android.util.ArrayMap;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
 import android.util.LocaleList;
@@ -68,7 +67,6 @@
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.lang.ref.WeakReference;
 import java.util.Locale;
 
 /**
@@ -120,9 +118,6 @@
     private static final LongSparseArray<android.content.res.ConstantState<ColorStateList>>
             sPreloadedColorStateLists = new LongSparseArray<>();
 
-    private static final String CACHE_NOT_THEMED = "";
-    private static final String CACHE_NULL_THEME = "null_theme";
-
     // Pool of TypedArrays targeted to this Resources object.
     final SynchronizedPool<TypedArray> mTypedArrayPool = new SynchronizedPool<>(5);
 
@@ -130,10 +125,11 @@
     static Resources mSystem = null;
 
     private static boolean sPreloaded;
-    private static int sPreloadedDensity;
+
+    /** Lock object used to protect access to caches and configuration. */
+    private final Object mAccessLock = new Object();
 
     // These are protected by mAccessLock.
-    private final Object mAccessLock = new Object();
     private final Configuration mTmpConfig = new Configuration();
     private final DrawableCache mDrawableCache = new DrawableCache(this);
     private final DrawableCache mColorDrawableCache = new DrawableCache(this);
@@ -147,7 +143,12 @@
     /** Used to inflate drawable objects from XML. */
     private DrawableInflater mDrawableInflater;
 
+    /** Lock object used to protect access to {@link #mTmpValue}. */
+    private final Object mTmpValueLock = new Object();
+
+    /** Single-item pool used to minimize TypedValue allocations. */
     private TypedValue mTmpValue = new TypedValue();
+
     private boolean mPreloading;
 
     private int mLastCachedXmlBlockIndex = -1;
@@ -249,6 +250,10 @@
         public NotFoundException(String name) {
             super(name);
         }
+
+        public NotFoundException(String name, Exception cause) {
+            super(name, cause);
+        }
     }
 
     /**
@@ -621,18 +626,15 @@
      * @see #getDimensionPixelSize
      */
     public float getDimension(@DimenRes int id) throws NotFoundException {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type == TypedValue.TYPE_DIMENSION) {
                 return TypedValue.complexToDimension(value.data, mMetrics);
             }
-            throw new NotFoundException(
-                    "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                    + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
 
@@ -656,19 +658,15 @@
      * @see #getDimensionPixelSize
      */
     public int getDimensionPixelOffset(@DimenRes int id) throws NotFoundException {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type == TypedValue.TYPE_DIMENSION) {
-                return TypedValue.complexToDimensionPixelOffset(
-                        value.data, mMetrics);
+                return TypedValue.complexToDimensionPixelOffset(value.data, mMetrics);
             }
-            throw new NotFoundException(
-                    "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                    + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
 
@@ -693,19 +691,15 @@
      * @see #getDimensionPixelOffset
      */
     public int getDimensionPixelSize(@DimenRes int id) throws NotFoundException {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type == TypedValue.TYPE_DIMENSION) {
-                return TypedValue.complexToDimensionPixelSize(
-                        value.data, mMetrics);
+                return TypedValue.complexToDimensionPixelSize(value.data, mMetrics);
             }
-            throw new NotFoundException(
-                    "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                    + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
 
@@ -727,18 +721,15 @@
      * @throws NotFoundException Throws NotFoundException if the given ID does not exist.
      */
     public float getFraction(@FractionRes int id, int base, int pbase) {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type == TypedValue.TYPE_FRACTION) {
                 return TypedValue.complexToFraction(value.data, base, pbase);
             }
-            throw new NotFoundException(
-                    "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                    + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
     
@@ -801,24 +792,14 @@
      *         not exist.
      */
     @Nullable
-    public Drawable getDrawable(@DrawableRes int id, @Nullable Theme theme) throws NotFoundException {
-        TypedValue value;
-        synchronized (mAccessLock) {
-            value = mTmpValue;
-            if (value == null) {
-                value = new TypedValue();
-            } else {
-                mTmpValue = null;
-            }
-            getValue(id, value, true);
+    public Drawable getDrawable(@DrawableRes int id, @Nullable Theme theme)
+            throws NotFoundException {
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
+            return loadDrawable(value, id, theme);
+        } finally {
+            releaseTempTypedValue(value);
         }
-        final Drawable res = loadDrawable(value, id, theme);
-        synchronized (mAccessLock) {
-            if (mTmpValue == null) {
-                mTmpValue = value;
-            }
-        }
-        return res;
     }
 
     /**
@@ -849,7 +830,8 @@
      */
     @Deprecated
     @Nullable
-    public Drawable getDrawableForDensity(@DrawableRes int id, int density) throws NotFoundException {
+    public Drawable getDrawableForDensity(@DrawableRes int id, int density)
+            throws NotFoundException {
         return getDrawableForDensity(id, density, null);
     }
 
@@ -869,14 +851,8 @@
      */
     @Nullable
     public Drawable getDrawableForDensity(@DrawableRes int id, int density, @Nullable Theme theme) {
-        TypedValue value;
-        synchronized (mAccessLock) {
-            value = mTmpValue;
-            if (value == null) {
-                value = new TypedValue();
-            } else {
-                mTmpValue = null;
-            }
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             getValueForDensity(id, density, value, true);
 
             /*
@@ -893,15 +869,11 @@
                     value.density = (value.density * mMetrics.densityDpi) / density;
                 }
             }
-        }
 
-        final Drawable res = loadDrawable(value, id, theme);
-        synchronized (mAccessLock) {
-            if (mTmpValue == null) {
-                mTmpValue = value;
-            }
+            return loadDrawable(value, id, theme);
+        } finally {
+            releaseTempTypedValue(value);
         }
-        return res;
     }
 
     /**
@@ -963,33 +935,21 @@
      */
     @ColorInt
     public int getColor(@ColorRes int id, @Nullable Theme theme) throws NotFoundException {
-        TypedValue value;
-        synchronized (mAccessLock) {
-            value = mTmpValue;
-            if (value == null) {
-                value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type >= TypedValue.TYPE_FIRST_INT
                     && value.type <= TypedValue.TYPE_LAST_INT) {
-                mTmpValue = value;
                 return value.data;
             } else if (value.type != TypedValue.TYPE_STRING) {
-                throw new NotFoundException(
-                        "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                                + Integer.toHexString(value.type) + " is not valid");
+                throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                        + " type #0x" + Integer.toHexString(value.type) + " is not valid");
             }
-            mTmpValue = null;
-        }
 
-        final ColorStateList csl = loadColorStateList(value, id, theme);
-        synchronized (mAccessLock) {
-            if (mTmpValue == null) {
-                mTmpValue = value;
-            }
+            final ColorStateList csl = loadColorStateList(value, id, theme);
+            return csl.getDefaultColor();
+        } finally {
+            releaseTempTypedValue(value);
         }
-
-        return csl.getDefaultColor();
     }
 
     /**
@@ -1043,25 +1003,12 @@
     @Nullable
     public ColorStateList getColorStateList(@ColorRes int id, @Nullable Theme theme)
             throws NotFoundException {
-        TypedValue value;
-        synchronized (mAccessLock) {
-            value = mTmpValue;
-            if (value == null) {
-                value = new TypedValue();
-            } else {
-                mTmpValue = null;
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
+            return loadColorStateList(value, id, theme);
+        } finally {
+            releaseTempTypedValue(value);
         }
-
-        final ColorStateList res = loadColorStateList(value, id, theme);
-        synchronized (mAccessLock) {
-            if (mTmpValue == null) {
-                mTmpValue = value;
-            }
-        }
-
-        return res;
     }
 
     /**
@@ -1078,19 +1025,16 @@
      * @return Returns the boolean value contained in the resource.
      */
     public boolean getBoolean(@BoolRes int id) throws NotFoundException {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type >= TypedValue.TYPE_FIRST_INT
-                && value.type <= TypedValue.TYPE_LAST_INT) {
+                    && value.type <= TypedValue.TYPE_LAST_INT) {
                 return value.data != 0;
             }
-            throw new NotFoundException(
-                "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
 
@@ -1106,19 +1050,16 @@
      * @return Returns the integer value contained in the resource.
      */
     public int getInteger(@IntegerRes int id) throws NotFoundException {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type >= TypedValue.TYPE_FIRST_INT
-                && value.type <= TypedValue.TYPE_LAST_INT) {
+                    && value.type <= TypedValue.TYPE_LAST_INT) {
                 return value.data;
             }
-            throw new NotFoundException(
-                "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
 
@@ -1136,17 +1077,15 @@
      * @hide Pending API council approval.
      */
     public float getFloat(int id) {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type == TypedValue.TYPE_FLOAT) {
                 return value.getFloat();
             }
-            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                    + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
 
@@ -1238,22 +1177,60 @@
      * 
      */
     public InputStream openRawResource(@RawRes int id) throws NotFoundException {
-        TypedValue value;
-        synchronized (mAccessLock) {
-            value = mTmpValue;
-            if (value == null) {
-                value = new TypedValue();
-            } else {
+        final TypedValue value = obtainTempTypedValue();
+        try {
+            return openRawResource(id, value);
+        } finally {
+            releaseTempTypedValue(value);
+        }
+    }
+
+    /**
+     * Returns a TypedValue populated with data for the specified resource ID
+     * that's suitable for temporary use. The obtained TypedValue should be
+     * released using {@link #releaseTempTypedValue(TypedValue)}.
+     *
+     * @param id the resource ID for which data should be obtained
+     * @return a populated typed value suitable for temporary use
+     */
+    private TypedValue obtainTempTypedValue(@AnyRes int id) {
+        final TypedValue value = obtainTempTypedValue();
+        getValue(id, value, true);
+        return value;
+    }
+
+    /**
+     * Returns a TypedValue suitable for temporary use. The obtained TypedValue
+     * should be released using {@link #releaseTempTypedValue(TypedValue)}.
+     *
+     * @return a typed value suitable for temporary use
+     */
+    private TypedValue obtainTempTypedValue() {
+        TypedValue tmpValue = null;
+        synchronized (mTmpValueLock) {
+            if (mTmpValue != null) {
+                tmpValue = mTmpValue;
                 mTmpValue = null;
             }
         }
-        InputStream res = openRawResource(id, value);
-        synchronized (mAccessLock) {
+        if (tmpValue == null) {
+            return new TypedValue();
+        }
+        return tmpValue;
+    }
+
+    /**
+     * Returns a TypedValue to the pool. After calling this method, the
+     * specified TypedValue should no longer be accessed.
+     *
+     * @param value the typed value to return to the pool
+     */
+    private void releaseTempTypedValue(TypedValue value) {
+        synchronized (mTmpValueLock) {
             if (mTmpValue == null) {
                 mTmpValue = value;
             }
         }
-        return res;
     }
 
     /**
@@ -1307,32 +1284,14 @@
      */
     public AssetFileDescriptor openRawResourceFd(@RawRes int id)
             throws NotFoundException {
-        TypedValue value;
-        synchronized (mAccessLock) {
-            value = mTmpValue;
-            if (value == null) {
-                value = new TypedValue();
-            } else {
-                mTmpValue = null;
-            }
-            getValue(id, value, true);
-        }
+        final TypedValue value = obtainTempTypedValue(id);
         try {
-            return mAssets.openNonAssetFd(
-                value.assetCookie, value.string.toString());
+            return mAssets.openNonAssetFd(value.assetCookie, value.string.toString());
         } catch (Exception e) {
-            NotFoundException rnf = new NotFoundException(
-                "File " + value.string.toString()
-                + " from drawable resource ID #0x"
-                + Integer.toHexString(id));
-            rnf.initCause(e);
-            throw rnf;
+            throw new NotFoundException("File " + value.string.toString() + " from drawable "
+                    + "resource ID #0x" + Integer.toHexString(id), e);
         } finally {
-            synchronized (mAccessLock) {
-                if (mTmpValue == null) {
-                    mTmpValue = value;
-                }
-            }
+            releaseTempTypedValue(value);
         }
     }
 
@@ -2015,8 +1974,8 @@
                     Build.VERSION.RESOURCES_SDK_INT);
 
             if (DEBUG_CONFIG) {
-                Slog.i(TAG, "**** Updating config of " + this + ": final config is " + mConfiguration
-                        + " final compat is " + mCompatibilityInfo);
+                Slog.i(TAG, "**** Updating config of " + this + ": final config is "
+                        + mConfiguration + " final compat is " + mCompatibilityInfo);
             }
 
             mDrawableCache.onConfigurationChange(configChanges);
@@ -2402,8 +2361,7 @@
             }
             sPreloaded = true;
             mPreloading = true;
-            sPreloadedDensity = DisplayMetrics.DENSITY_DEVICE;
-            mConfiguration.densityDpi = sPreloadedDensity;
+            mConfiguration.densityDpi = DisplayMetrics.DENSITY_DEVICE;
             updateConfiguration(null, null);
         }
     }
@@ -2740,19 +2698,16 @@
 
     /*package*/ XmlResourceParser loadXmlResourceParser(int id, String type)
             throws NotFoundException {
-        synchronized (mAccessLock) {
-            TypedValue value = mTmpValue;
-            if (value == null) {
-                mTmpValue = value = new TypedValue();
-            }
-            getValue(id, value, true);
+        final TypedValue value = obtainTempTypedValue(id);
+        try {
             if (value.type == TypedValue.TYPE_STRING) {
                 return loadXmlResourceParser(value.string.toString(), id,
                         value.assetCookie, type);
             }
-            throw new NotFoundException(
-                    "Resource ID #0x" + Integer.toHexString(id) + " type #0x"
-                    + Integer.toHexString(value.type) + " is not valid");
+            throw new NotFoundException("Resource ID #0x" + Integer.toHexString(id)
+                    + " type #0x" + Integer.toHexString(value.type) + " is not valid");
+        } finally {
+            releaseTempTypedValue(value);
         }
     }
     
diff --git a/core/java/android/hardware/Camera.java b/core/java/android/hardware/Camera.java
index 1fc69c0..73bb426 100644
--- a/core/java/android/hardware/Camera.java
+++ b/core/java/android/hardware/Camera.java
@@ -3182,8 +3182,8 @@
         }
 
         /**
-         * Sets GPS processing method. It will store up to 32 characters
-         * in JPEG EXIF header.
+         * Sets GPS processing method. The method will be stored in a UTF-8 string up to 31 bytes
+         * long, in the JPEG EXIF header.
          *
          * @param processing_method The processing method to get this location.
          */
diff --git a/core/java/android/hardware/camera2/CameraMetadata.java b/core/java/android/hardware/camera2/CameraMetadata.java
index 35a1d96..f61892e 100644
--- a/core/java/android/hardware/camera2/CameraMetadata.java
+++ b/core/java/android/hardware/camera2/CameraMetadata.java
@@ -472,13 +472,13 @@
      * <li>The maximum available resolution for RAW_SENSOR streams
      *   will match either the value in
      *   {@link CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize} or
-     *   {@link CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</li>
+     *   {@link CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize}.</li>
      * <li>All DNG-related optional metadata entries are provided
      *   by the camera device.</li>
      * </ul>
      *
-     * @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE
      * @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE
+     * @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
      * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
      */
     public static final int REQUEST_AVAILABLE_CAPABILITIES_RAW = 3;
diff --git a/core/java/android/hardware/camera2/CaptureRequest.java b/core/java/android/hardware/camera2/CaptureRequest.java
index 3f566eb..67835a0 100644
--- a/core/java/android/hardware/camera2/CaptureRequest.java
+++ b/core/java/android/hardware/camera2/CaptureRequest.java
@@ -556,6 +556,10 @@
          * Set a capture request field to a value. The field definitions can be
          * found in {@link CaptureRequest}.
          *
+         * <p>Setting a field to {@code null} will remove that field from the capture request.
+         * Unless the field is optional, removing it will likely produce an error from the camera
+         * device when the request is submitted.</p>
+         *
          * @param key The metadata field to write.
          * @param value The value to set the field to, which must be of a matching
          * type to the key.
diff --git a/core/java/android/net/http/X509TrustManagerExtensions.java b/core/java/android/net/http/X509TrustManagerExtensions.java
index 25ef8b5..6729347 100644
--- a/core/java/android/net/http/X509TrustManagerExtensions.java
+++ b/core/java/android/net/http/X509TrustManagerExtensions.java
@@ -20,6 +20,9 @@
 
 import com.android.org.conscrypt.TrustManagerImpl;
 
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.security.cert.CertificateException;
 import java.security.cert.X509Certificate;
 import java.util.List;
@@ -36,7 +39,11 @@
  */
 public class X509TrustManagerExtensions {
 
-    final TrustManagerImpl mDelegate;
+    private final TrustManagerImpl mDelegate;
+    // Methods to use when mDelegate is not a TrustManagerImpl and duck typing is being used.
+    private final X509TrustManager mTrustManager;
+    private final Method mCheckServerTrusted;
+    private final Method mIsUserAddedCertificate;
 
     /**
      * Constructs a new X509TrustManagerExtensions wrapper.
@@ -47,10 +54,31 @@
     public X509TrustManagerExtensions(X509TrustManager tm) throws IllegalArgumentException {
         if (tm instanceof TrustManagerImpl) {
             mDelegate = (TrustManagerImpl) tm;
-        } else {
-            mDelegate = null;
-            throw new IllegalArgumentException("tm is an instance of " + tm.getClass().getName() +
-                    " which is not a supported type of X509TrustManager");
+            mTrustManager = null;
+            mCheckServerTrusted = null;
+            mIsUserAddedCertificate = null;
+            return;
+        }
+        // Use duck typing if possible.
+        mDelegate = null;
+        mTrustManager = tm;
+        // Check that the hostname aware checkServerTrusted is present.
+        try {
+            mCheckServerTrusted = tm.getClass().getMethod("checkServerTrusted",
+                    X509Certificate[].class,
+                    String.class,
+                    String.class);
+        } catch (NoSuchMethodException e) {
+            throw new IllegalArgumentException("Required method"
+                    + " checkServerTrusted(X509Certificate[], String, String, String) missing");
+        }
+        // Check that isUserAddedCertificate is present.
+        try {
+            mIsUserAddedCertificate = tm.getClass().getMethod("isUserAddedCertificate",
+                    X509Certificate.class);
+        } catch (NoSuchMethodException e) {
+            throw new IllegalArgumentException(
+                    "Required method isUserAddedCertificate(X509Certificate) missing");
         }
     }
 
@@ -66,7 +94,24 @@
      */
     public List<X509Certificate> checkServerTrusted(X509Certificate[] chain, String authType,
                                                     String host) throws CertificateException {
-        return mDelegate.checkServerTrusted(chain, authType, host);
+        if (mDelegate != null) {
+            return mDelegate.checkServerTrusted(chain, authType, host);
+        } else {
+            try {
+                return (List<X509Certificate>) mCheckServerTrusted.invoke(mTrustManager, chain,
+                        authType, host);
+            } catch (IllegalAccessException e) {
+                throw new CertificateException("Failed to call checkServerTrusted", e);
+            } catch (InvocationTargetException e) {
+                if (e.getCause() instanceof CertificateException) {
+                    throw (CertificateException) e.getCause();
+                }
+                if (e.getCause() instanceof RuntimeException) {
+                    throw (RuntimeException) e.getCause();
+                }
+                throw new CertificateException("checkServerTrusted failed", e.getCause());
+            }
+        }
     }
 
     /**
@@ -80,7 +125,21 @@
      * otherwise.
      */
     public boolean isUserAddedCertificate(X509Certificate cert) {
-        return mDelegate.isUserAddedCertificate(cert);
+        if (mDelegate != null) {
+            return mDelegate.isUserAddedCertificate(cert);
+        } else {
+            try {
+                return (Boolean) mIsUserAddedCertificate.invoke(mTrustManager, cert);
+            } catch (IllegalAccessException e) {
+                throw new RuntimeException("Failed to call isUserAddedCertificate", e);
+            } catch (InvocationTargetException e) {
+                if (e.getCause() instanceof RuntimeException) {
+                    throw (RuntimeException) e.getCause();
+                } else {
+                    throw new RuntimeException("isUserAddedCertificate failed", e.getCause());
+                }
+            }
+        }
     }
 
     /**
diff --git a/core/java/android/os/Parcel.java b/core/java/android/os/Parcel.java
index 5852f5f..f2aea08 100644
--- a/core/java/android/os/Parcel.java
+++ b/core/java/android/os/Parcel.java
@@ -624,6 +624,32 @@
     }
 
     /**
+     * {@hide}
+     * This will be the new name for writeFileDescriptor, for consistency.
+     **/
+    public final void writeRawFileDescriptor(FileDescriptor val) {
+        nativeWriteFileDescriptor(mNativePtr, val);
+    }
+
+    /**
+     * {@hide}
+     * Write an array of FileDescriptor objects into the Parcel.
+     *
+     * @param value The array of objects to be written.
+     */
+    public final void writeRawFileDescriptorArray(FileDescriptor[] value) {
+        if (value != null) {
+            int N = value.length;
+            writeInt(N);
+            for (int i=0; i<N; i++) {
+                writeRawFileDescriptor(value[i]);
+            }
+        } else {
+            writeInt(-1);
+        }
+    }
+
+    /**
      * Write a byte value into the parcel at the current dataPosition(),
      * growing dataCapacity() if needed.
      */
@@ -1700,6 +1726,41 @@
         return nativeReadFileDescriptor(mNativePtr);
     }
 
+    /**
+     * {@hide}
+     * Read and return a new array of FileDescriptors from the parcel.
+     * @return the FileDescriptor array, or null if the array is null.
+     **/
+    public final FileDescriptor[] createRawFileDescriptorArray() {
+        int N = readInt();
+        if (N < 0) {
+            return null;
+        }
+        FileDescriptor[] f = new FileDescriptor[N];
+        for (int i = 0; i < N; i++) {
+            f[i] = readRawFileDescriptor();
+        }
+        return f;
+    }
+
+    /**
+     * {@hide}
+     * Read an array of FileDescriptors from a parcel.
+     * The passed array must be exactly the length of the array in the parcel.
+     * @return the FileDescriptor array, or null if the array is null.
+     **/
+    public final void readRawFileDescriptorArray(FileDescriptor[] val) {
+        int N = readInt();
+        if (N == val.length) {
+            for (int i=0; i<N; i++) {
+                val[i] = readRawFileDescriptor();
+            }
+        } else {
+            throw new RuntimeException("bad array lengths");
+        }
+    }
+
+
     /*package*/ static native FileDescriptor openFileDescriptor(String file,
             int mode) throws FileNotFoundException;
     /*package*/ static native FileDescriptor dupFileDescriptor(FileDescriptor orig)
diff --git a/core/java/android/preference/PreferenceFragment.java b/core/java/android/preference/PreferenceFragment.java
index db04c71..3e496b6 100644
--- a/core/java/android/preference/PreferenceFragment.java
+++ b/core/java/android/preference/PreferenceFragment.java
@@ -23,14 +23,15 @@
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.TypedArray;
+import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.view.View.OnKeyListener;
+import android.view.ViewGroup;
 import android.widget.ListView;
 
 /**
@@ -179,6 +180,27 @@
     }
 
     @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        TypedArray a = getActivity().obtainStyledAttributes(null,
+                com.android.internal.R.styleable.PreferenceFragment,
+                com.android.internal.R.attr.preferenceFragmentStyle,
+                0);
+
+        ListView lv = (ListView) view.findViewById(android.R.id.list);
+        if (lv != null) {
+            Drawable divider =
+                    a.getDrawable(com.android.internal.R.styleable.PreferenceFragment_divider);
+            if (divider != null) {
+                lv.setDivider(divider);
+            }
+        }
+
+        a.recycle();
+    }
+
+    @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
diff --git a/core/java/android/preference/SwitchPreference.java b/core/java/android/preference/SwitchPreference.java
index 9c3cefc..aa8674e 100644
--- a/core/java/android/preference/SwitchPreference.java
+++ b/core/java/android/preference/SwitchPreference.java
@@ -122,7 +122,7 @@
     protected void onBindView(View view) {
         super.onBindView(view);
 
-        View checkableView = view.findViewById(com.android.internal.R.id.switchWidget);
+        View checkableView = view.findViewById(com.android.internal.R.id.switch_widget);
         if (checkableView != null && checkableView instanceof Checkable) {
             if (checkableView instanceof Switch) {
                 final Switch switchView = (Switch) checkableView;
diff --git a/core/java/android/print/PrintAttributes.java b/core/java/android/print/PrintAttributes.java
index 90d30d6..2afbb99 100644
--- a/core/java/android/print/PrintAttributes.java
+++ b/core/java/android/print/PrintAttributes.java
@@ -60,7 +60,7 @@
     private Margins mMinMargins;
 
     private int mColorMode;
-    private int mDuplexMode = DUPLEX_MODE_NONE;
+    private int mDuplexMode;
 
     PrintAttributes() {
         /* hide constructor */
@@ -403,7 +403,7 @@
         mResolution = null;
         mMinMargins = null;
         mColorMode = 0;
-        mDuplexMode = DUPLEX_MODE_NONE;
+        mDuplexMode = 0;
     }
 
     /**
@@ -1427,10 +1427,6 @@
 
         /**
          * Creates a new {@link PrintAttributes} instance.
-         * <p>
-         * If you do not specify a duplex mode, the default
-         * {@link #DUPLEX_MODE_NONE} will be used.
-         * </p>
          *
          * @return The new instance.
          */
diff --git a/core/java/android/security/net/config/NetworkSecurityConfig.java b/core/java/android/security/net/config/NetworkSecurityConfig.java
index 503854e..8906f9b 100644
--- a/core/java/android/security/net/config/NetworkSecurityConfig.java
+++ b/core/java/android/security/net/config/NetworkSecurityConfig.java
@@ -41,7 +41,7 @@
     private final List<CertificatesEntryRef> mCertificatesEntryRefs;
     private Set<TrustAnchor> mAnchors;
     private final Object mAnchorsLock = new Object();
-    private X509TrustManager mTrustManager;
+    private NetworkSecurityTrustManager mTrustManager;
     private final Object mTrustManagerLock = new Object();
 
     private NetworkSecurityConfig(boolean cleartextTrafficPermitted, boolean hstsEnforced,
@@ -78,7 +78,7 @@
         return mPins;
     }
 
-    public X509TrustManager getTrustManager() {
+    public NetworkSecurityTrustManager getTrustManager() {
         synchronized(mTrustManagerLock) {
             if (mTrustManager == null) {
                 mTrustManager = new NetworkSecurityTrustManager(this);
diff --git a/core/java/android/security/net/config/NetworkSecurityTrustManager.java b/core/java/android/security/net/config/NetworkSecurityTrustManager.java
index e69082d..7f5b3ca 100644
--- a/core/java/android/security/net/config/NetworkSecurityTrustManager.java
+++ b/core/java/android/security/net/config/NetworkSecurityTrustManager.java
@@ -71,9 +71,28 @@
     @Override
     public void checkServerTrusted(X509Certificate[] certs, String authType)
             throws CertificateException {
-        List<X509Certificate> trustedChain =
-                mDelegate.checkServerTrusted(certs, authType, (String) null);
+        checkServerTrusted(certs, authType, null);
+    }
+
+    /**
+     * Hostname aware version of {@link #checkServerTrusted(X509Certificate[], String)}.
+     * This interface is used by conscrypt and android.net.http.X509TrustManagerExtensions do not
+     * modify without modifying those callers.
+     */
+    public List<X509Certificate> checkServerTrusted(X509Certificate[] certs, String authType,
+            String host) throws CertificateException {
+        List<X509Certificate> trustedChain = mDelegate.checkServerTrusted(certs, authType, host);
         checkPins(trustedChain);
+        return trustedChain;
+    }
+
+    /**
+     * Check if the provided certificate is a user added certificate authority.
+     * This is required by android.net.http.X509TrustManagerExtensions.
+     */
+    public boolean isUserAddedCertificate(X509Certificate cert) {
+        // TODO: Figure out the right way to handle this, and if it is still even used.
+        return false;
     }
 
     private void checkPins(List<X509Certificate> chain) throws CertificateException {
diff --git a/core/java/android/security/net/config/RootTrustManager.java b/core/java/android/security/net/config/RootTrustManager.java
index 1338b9f..b87bf1f 100644
--- a/core/java/android/security/net/config/RootTrustManager.java
+++ b/core/java/android/security/net/config/RootTrustManager.java
@@ -18,6 +18,7 @@
 
 import java.security.cert.CertificateException;
 import java.security.cert.X509Certificate;
+import java.util.List;
 
 import javax.net.ssl.X509TrustManager;
 
@@ -61,10 +62,24 @@
         config.getTrustManager().checkServerTrusted(certs, authType);
     }
 
-    public void checkServerTrusted(X509Certificate[] certs, String authType, String hostname)
-            throws CertificateException {
+    /**
+     * Hostname aware version of {@link #checkServerTrusted(X509Certificate[], String)}.
+     * This interface is used by conscrypt and android.net.http.X509TrustManagerExtensions do not
+     * modify without modifying those callers.
+     */
+    public List<X509Certificate> checkServerTrusted(X509Certificate[] certs, String authType,
+            String hostname) throws CertificateException {
         NetworkSecurityConfig config = mConfig.getConfigForHostname(hostname);
-        config.getTrustManager().checkServerTrusted(certs, authType);
+        return config.getTrustManager().checkServerTrusted(certs, authType, hostname);
+    }
+
+    /**
+     * Check if the provided certificate is a user added certificate authority.
+     * This is required by android.net.http.X509TrustManagerExtensions.
+     */
+    public boolean isUserAddedCertificate(X509Certificate cert) {
+        // TODO: Figure out the right way to handle this, and if it is still even used.
+        return false;
     }
 
     @Override
diff --git a/core/java/android/util/PathParser.java b/core/java/android/util/PathParser.java
index cebb8f0..f099479 100644
--- a/core/java/android/util/PathParser.java
+++ b/core/java/android/util/PathParser.java
@@ -27,21 +27,21 @@
     static final String LOGTAG = PathParser.class.getSimpleName();
 
     /**
-     * @param pathData The string representing a path, the same as "d" string in svg file.
+     * @param pathString The string representing a path, the same as "d" string in svg file.
      * @return the generated Path object.
      */
-    public static Path createPathFromPathData(String pathData) {
-        Path path = new Path();
-        PathDataNode[] nodes = createNodesFromPathData(pathData);
-        if (nodes != null) {
-            try {
-                PathDataNode.nodesToPath(nodes, path);
-            } catch (RuntimeException e) {
-                throw new RuntimeException("Error in parsing " + pathData, e);
-            }
-            return path;
+    public static Path createPathFromPathData(String pathString) {
+        if (pathString == null) {
+            throw new IllegalArgumentException("Path string can not be null.");
         }
-        return null;
+        Path path = new Path();
+        boolean hasValidPathData = nParseStringForPath(path.mNativePath, pathString,
+                pathString.length());
+        if (!hasValidPathData) {
+            throw new IllegalArgumentException("Path string: " + pathString +
+                    " does not contain valid path data");
+        }
+        return path;
     }
 
     /**
@@ -701,4 +701,7 @@
             }
         }
     }
+
+    private static native boolean nParseStringForPath(long pathPtr, String pathString,
+            int stringLength);
 }
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 66b05a2..461506b 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -12968,10 +12968,6 @@
 
             mPrivateFlags |= PFLAG_DIRTY;
 
-            // Release any resources in-case we don't end up drawing again
-            // as anything cached is no longer valid
-            resetDisplayList();
-
             if (invalidateCache) {
                 mPrivateFlags |= PFLAG_INVALIDATED;
                 mPrivateFlags &= ~PFLAG_DRAWING_CACHE_VALID;
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index d80c6a3..fdea1ba 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -1625,7 +1625,7 @@
                 if (mPendingConfiguration.seq != 0) {
                     if (DEBUG_CONFIGURATION) Log.v(TAG, "Visible with new config: "
                             + mPendingConfiguration);
-                    updateConfiguration(mPendingConfiguration, !mFirst);
+                    updateConfiguration(new Configuration(mPendingConfiguration), !mFirst);
                     mPendingConfiguration.seq = 0;
                 }
 
@@ -1638,6 +1638,8 @@
                 final boolean stableInsetsChanged = !mPendingStableInsets.equals(
                         mAttachInfo.mStableInsets);
                 final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets);
+                final boolean surfaceSizeChanged = (relayoutResult
+                        & WindowManagerGlobal.RELAYOUT_RES_SURFACE_RESIZED) != 0;
                 if (contentInsetsChanged) {
                     mAttachInfo.mContentInsets.set(mPendingContentInsets);
                     if (DEBUG_LAYOUT) Log.v(TAG, "Content insets changing to: "
@@ -1723,10 +1725,20 @@
                             mAttachInfo.mHardwareRenderer.isEnabled()) {
                         mAttachInfo.mHardwareRenderer.destroy();
                     }
-                } else if (surfaceGenerationId != mSurface.getGenerationId() &&
-                        mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) {
+                } else if ((surfaceGenerationId != mSurface.getGenerationId()
+                        || surfaceSizeChanged)
+                        && mSurfaceHolder == null
+                        && mAttachInfo.mHardwareRenderer != null) {
                     mFullRedrawNeeded = true;
                     try {
+                        // Need to do updateSurface (which leads to CanvasContext::setSurface and
+                        // re-create the EGLSurface) if either the Surface changed (as indicated by
+                        // generation id), or WindowManager changed the surface size. The latter is
+                        // because on some chips, changing the consumer side's BufferQueue size may
+                        // not take effect immediately unless we create a new EGLSurface.
+                        // Note that frame size change doesn't always imply surface size change (eg.
+                        // drag resizing uses fullscreen surface), need to check surfaceSizeChanged
+                        // flag from WindowManager.
                         mAttachInfo.mHardwareRenderer.updateSurface(mSurface);
                     } catch (OutOfResourcesException e) {
                         handleOutOfResourcesException(e);
diff --git a/core/java/android/view/WindowManagerGlobal.java b/core/java/android/view/WindowManagerGlobal.java
index 43d643e..c08e1b5 100644
--- a/core/java/android/view/WindowManagerGlobal.java
+++ b/core/java/android/view/WindowManagerGlobal.java
@@ -77,6 +77,11 @@
     public static final int RELAYOUT_RES_DRAG_RESIZING = 0x8;
 
     /**
+     * The window manager has changed the size of the surface from the last call.
+     */
+    public static final int RELAYOUT_RES_SURFACE_RESIZED = 0x10;
+
+    /**
      * Flag for relayout: the client will be later giving
      * internal insets; as a result, the window will not impact other window
      * layouts until the insets are given.
diff --git a/core/java/android/view/inputmethod/InputMethodManager.java b/core/java/android/view/inputmethod/InputMethodManager.java
index ee06806..122b83a 100644
--- a/core/java/android/view/inputmethod/InputMethodManager.java
+++ b/core/java/android/view/inputmethod/InputMethodManager.java
@@ -443,30 +443,18 @@
                     if (DEBUG) {
                         Log.i(TAG, "handleMessage: MSG_UNBIND " + sequence);
                     }
-                    boolean startInput = false;
+                    final boolean startInput;
                     synchronized (mH) {
-                        if (mBindSequence == sequence) {
-                            if (false) {
-                                // XXX the server has already unbound!
-                                if (mCurMethod != null && mCurrentTextBoxAttribute != null) {
-                                    try {
-                                        mCurMethod.finishInput();
-                                    } catch (RemoteException e) {
-                                        Log.w(TAG, "IME died: " + mCurId, e);
-                                    }
-                                }
-                            }
-                            clearBindingLocked();
-                            
-                            // If we were actively using the last input method, then
-                            // we would like to re-connect to the next input method.
-                            if (mServedView != null && mServedView.isFocused()) {
-                                mServedConnecting = true;
-                            }
-                            if (mActive) {
-                                startInput = true;
-                            }
+                        if (mBindSequence != sequence) {
+                            return;
                         }
+                        clearBindingLocked();
+                        // If we were actively using the last input method, then
+                        // we would like to re-connect to the next input method.
+                        if (mServedView != null && mServedView.isFocused()) {
+                            mServedConnecting = true;
+                        }
+                        startInput = mActive;
                     }
                     if (startInput) {
                         startInputInner(null, 0, 0, 0);
diff --git a/core/java/android/widget/Editor.java b/core/java/android/widget/Editor.java
index 2fabe33..2983053 100644
--- a/core/java/android/widget/Editor.java
+++ b/core/java/android/widget/Editor.java
@@ -2705,11 +2705,22 @@
             mIsShowingUp = false;
         }
 
-        private class SuggestionInfo {
+        private final class SuggestionInfo {
             int suggestionStart, suggestionEnd; // range of actual suggestion within text
-            SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents
+
+            // the SuggestionSpan that this TextView represents
+            @Nullable
+            SuggestionSpan suggestionSpan;
+
             int suggestionIndex; // the index of this suggestion inside suggestionSpan
-            SpannableStringBuilder text = new SpannableStringBuilder();
+
+            @Nullable
+            final SpannableStringBuilder text = new SpannableStringBuilder();
+
+            void clear() {
+                suggestionSpan = null;
+                text.clear();
+            }
         }
 
         private class SuggestionAdapter extends BaseAdapter {
@@ -2863,9 +2874,11 @@
             return Math.min(positionY, displayMetrics.heightPixels - height);
         }
 
-        @Override
-        public void hide() {
-            super.hide();
+        private void hideWithCleanUp() {
+            for (final SuggestionInfo info : mSuggestionInfos) {
+                info.clear();
+            }
+            hide();
         }
 
         private boolean updateSuggestions() {
@@ -3017,7 +3030,7 @@
                     }
                     mTextView.deleteText_internal(spanUnionStart, spanUnionEnd);
                 }
-                hide();
+                hideWithCleanUp();
                 return;
             }
 
@@ -3025,7 +3038,7 @@
             final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan);
             if (spanStart < 0 || spanEnd <= spanStart) {
                 // Span has been removed
-                hide();
+                hideWithCleanUp();
                 return;
             }
 
@@ -3100,7 +3113,7 @@
                 mTextView.setCursorPosition_internal(newCursorPosition, newCursorPosition);
             }
 
-            hide();
+            hideWithCleanUp();
         }
     }
 
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index c54a574..b5d994d 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -3975,6 +3975,15 @@
         }
 
         ((Editable) mText).append(text, start, end);
+
+        if (mAutoLinkMask != 0) {
+            boolean linksWereAdded = Linkify.addLinks((Spannable) mText, mAutoLinkMask);
+            // Do not change the movement method for text that support text selection as it
+            // would prevent an arbitrary cursor displacement.
+            if (linksWereAdded && mLinksClickable && !textCanBeSelected()) {
+                setMovementMethod(LinkMovementMethod.getInstance());
+            }
+        }
     }
 
     private void updateTextColors() {
diff --git a/core/java/com/android/internal/widget/LockPatternUtils.java b/core/java/com/android/internal/widget/LockPatternUtils.java
index 60ef4a4..889c7b3 100644
--- a/core/java/com/android/internal/widget/LockPatternUtils.java
+++ b/core/java/com/android/internal/widget/LockPatternUtils.java
@@ -126,6 +126,8 @@
     private static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
             Settings.Secure.LOCK_SCREEN_OWNER_INFO_ENABLED;
 
+    private static final String LOCK_SCREEN_DEVICE_OWNER_INFO = "lockscreen.device_owner_info";
+
     private static final String ENABLED_TRUST_AGENTS = "lockscreen.enabledtrustagents";
 
     // Maximum allowed number of repeated or ordered characters in a sequence before we'll
@@ -578,6 +580,29 @@
     }
 
     /**
+     * Sets the device owner information. If the information is {@code null} or empty then the
+     * device owner info is cleared.
+     *
+     * @param info Device owner information which will be displayed instead of the user
+     * owner info.
+     */
+    public void setDeviceOwnerInfo(String info) {
+        if (info != null && info.isEmpty()) {
+            info = null;
+        }
+
+        setString(LOCK_SCREEN_DEVICE_OWNER_INFO, info, UserHandle.USER_SYSTEM);
+    }
+
+    public String getDeviceOwnerInfo() {
+        return getString(LOCK_SCREEN_DEVICE_OWNER_INFO, UserHandle.USER_SYSTEM);
+    }
+
+    public boolean isDeviceOwnerInfoEnabled() {
+        return getDeviceOwnerInfo() != null;
+    }
+
+    /**
      * Compute the password quality from the given password string.
      */
     static public int computePasswordQuality(String password) {
diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index ecee2b2..4d648ce 100644
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -89,6 +89,7 @@
     android_util_Binder.cpp \
     android_util_EventLog.cpp \
     android_util_Log.cpp \
+    android_util_PathParser.cpp \
     android_util_Process.cpp \
     android_util_StringBlock.cpp \
     android_util_XmlBlock.cpp \
diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index 4e93730..815d330 100644
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -110,6 +110,7 @@
 extern int register_android_content_AssetManager(JNIEnv* env);
 extern int register_android_util_EventLog(JNIEnv* env);
 extern int register_android_util_Log(JNIEnv* env);
+extern int register_android_util_PathParser(JNIEnv* env);
 extern int register_android_content_StringBlock(JNIEnv* env);
 extern int register_android_content_XmlBlock(JNIEnv* env);
 extern int register_android_graphics_Canvas(JNIEnv* env);
@@ -1300,6 +1301,7 @@
     REG_JNI(register_android_os_SystemClock),
     REG_JNI(register_android_util_EventLog),
     REG_JNI(register_android_util_Log),
+    REG_JNI(register_android_util_PathParser),
     REG_JNI(register_android_content_AssetManager),
     REG_JNI(register_android_content_StringBlock),
     REG_JNI(register_android_content_XmlBlock),
diff --git a/core/jni/android/graphics/Bitmap.cpp b/core/jni/android/graphics/Bitmap.cpp
index 703a9bd..a805b6d 100755
--- a/core/jni/android/graphics/Bitmap.cpp
+++ b/core/jni/android/graphics/Bitmap.cpp
@@ -1006,6 +1006,7 @@
         // is disposed.
         int dupFd = dup(blob.fd());
         if (dupFd < 0) {
+            ALOGE("Error allocating dup fd. Error:%d", errno);
             blob.release();
             SkSafeUnref(ctable);
             doThrowRE(env, "Could not allocate dup blob fd.");
diff --git a/core/jni/android_util_PathParser.cpp b/core/jni/android_util_PathParser.cpp
new file mode 100644
index 0000000..245aa0f
--- /dev/null
+++ b/core/jni/android_util_PathParser.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "jni.h"
+
+#include <PathParser.h>
+#include <SkPath.h>
+
+#include <android/log.h>
+#include "core_jni_helpers.h"
+
+namespace android {
+
+static bool parseStringForPath(JNIEnv* env, jobject, jlong skPathHandle, jstring inputPathStr,
+        jint strLength) {
+    const char* pathString = env->GetStringUTFChars(inputPathStr, NULL);
+    SkPath* skPath = reinterpret_cast<SkPath*>(skPathHandle);
+
+    android::uirenderer::PathParser::ParseResult result;
+    android::uirenderer::PathParser::parseStringForSkPath(skPath, &result, pathString, strLength);
+    env->ReleaseStringUTFChars(inputPathStr, pathString);
+    if (result.failureOccurred) {
+        ALOGE(result.failureMessage.c_str());
+    }
+    return !result.failureOccurred;
+}
+
+static const JNINativeMethod gMethods[] = {
+    {"nParseStringForPath", "(JLjava/lang/String;I)Z", (void*)parseStringForPath}
+};
+
+int register_android_util_PathParser(JNIEnv* env) {
+    return RegisterMethodsOrDie(env, "android/util/PathParser", gMethods, NELEM(gMethods));
+}
+};
diff --git a/core/res/res/layout/preference_list_fragment.xml b/core/res/res/layout/preference_list_fragment.xml
index f073c33..fc53a1a 100644
--- a/core/res/res/layout/preference_list_fragment.xml
+++ b/core/res/res/layout/preference_list_fragment.xml
@@ -24,18 +24,23 @@
     android:background="@android:color/transparent"
     android:layout_removeBorders="true">
 
-    <ListView android:id="@android:id/list"
-        style="?attr/preferenceFragmentListStyle"
+    <FrameLayout
+        android:id="@android:id/list_container"
         android:layout_width="match_parent"
         android:layout_height="0px"
-        android:layout_weight="1"
-        android:paddingTop="0dip"
-        android:paddingBottom="@dimen/preference_fragment_padding_bottom"
-        android:scrollbarStyle="@integer/preference_fragment_scrollbarStyle"
-        android:clipToPadding="false"
-        android:drawSelectorOnTop="false"
-        android:cacheColorHint="@android:color/transparent"
-        android:scrollbarAlwaysDrawVerticalTrack="true" />
+        android:layout_weight="1">
+        <ListView android:id="@android:id/list"
+            style="?attr/preferenceFragmentListStyle"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:paddingTop="0dip"
+            android:paddingBottom="@dimen/preference_fragment_padding_bottom"
+            android:scrollbarStyle="@integer/preference_fragment_scrollbarStyle"
+            android:clipToPadding="false"
+            android:drawSelectorOnTop="false"
+            android:cacheColorHint="@android:color/transparent"
+            android:scrollbarAlwaysDrawVerticalTrack="true" />
+    </FrameLayout>
 
     <TextView android:id="@android:id/empty"
         android:layout_width="match_parent"
diff --git a/core/res/res/layout/preference_list_fragment_material.xml b/core/res/res/layout/preference_list_fragment_material.xml
index 62bdffd..e411c0e 100644
--- a/core/res/res/layout/preference_list_fragment_material.xml
+++ b/core/res/res/layout/preference_list_fragment_material.xml
@@ -24,18 +24,23 @@
     android:background="@android:color/transparent"
     android:layout_removeBorders="true">
 
-    <ListView android:id="@android:id/list"
-        style="?attr/preferenceFragmentListStyle"
+    <FrameLayout
+        android:id="@android:id/list_container"
         android:layout_width="match_parent"
         android:layout_height="0px"
-        android:layout_weight="1"
-        android:paddingTop="0dip"
-        android:paddingBottom="@dimen/preference_fragment_padding_bottom"
-        android:scrollbarStyle="@integer/preference_fragment_scrollbarStyle"
-        android:clipToPadding="false"
-        android:drawSelectorOnTop="false"
-        android:cacheColorHint="@android:color/transparent"
-        android:scrollbarAlwaysDrawVerticalTrack="true" />
+        android:layout_weight="1">
+        <ListView android:id="@android:id/list"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:paddingTop="0dip"
+            android:paddingBottom="@dimen/preference_fragment_padding_bottom"
+            style="?attr/preferenceFragmentListStyle"
+            android:scrollbarStyle="@integer/preference_fragment_scrollbarStyle"
+            android:clipToPadding="false"
+            android:drawSelectorOnTop="false"
+            android:cacheColorHint="@android:color/transparent"
+            android:scrollbarAlwaysDrawVerticalTrack="true" />
+    </FrameLayout>
 
     <TextView android:id="@android:id/empty"
         android:layout_width="match_parent"
diff --git a/core/res/res/layout/preference_widget_switch.xml b/core/res/res/layout/preference_widget_switch.xml
index 25e8aa6..80c572b 100644
--- a/core/res/res/layout/preference_widget_switch.xml
+++ b/core/res/res/layout/preference_widget_switch.xml
@@ -17,7 +17,7 @@
 <!-- Layout used by SwitchPreference for the switch widget style. This is inflated
      inside android.R.layout.preference. -->
 <Switch xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+android:id/switchWidget"
+    android:id="@+android:id/switch_widget"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:focusable="false"
diff --git a/core/res/res/values-ja/strings.xml b/core/res/res/values-ja/strings.xml
index f900301..6f6d1b0 100644
--- a/core/res/res/values-ja/strings.xml
+++ b/core/res/res/values-ja/strings.xml
@@ -420,7 +420,7 @@
     <string name="permdesc_useFingerprint" msgid="9165097460730684114">"指紋ハードウェアを認証に使用することをアプリに許可します"</string>
     <string name="fingerprint_acquired_partial" msgid="735082772341716043">"指紋を一部しか検出できませんでした。もう一度お試しください。"</string>
     <string name="fingerprint_acquired_insufficient" msgid="4596546021310923214">"指紋を処理できませんでした。もう一度お試しください。"</string>
-    <string name="fingerprint_acquired_imager_dirty" msgid="1087209702421076105">"指紋センサーに汚れがあります。汚れを落としてもう一度お試しください。"</string>
+    <string name="fingerprint_acquired_imager_dirty" msgid="1087209702421076105">"指紋認証センサーに汚れがあります。汚れを落としてもう一度お試しください。"</string>
     <string name="fingerprint_acquired_too_fast" msgid="6470642383109155969">"指の動きが速すぎました。もう一度お試しください。"</string>
     <string name="fingerprint_acquired_too_slow" msgid="59250885689661653">"指の動きが遅すぎました。もう一度お試しください。"</string>
   <string-array name="fingerprint_acquired_vendor">
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index d7dd3ec..50cf302 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -7714,6 +7714,7 @@
     <declare-styleable name="PreferenceFragment">
         <!-- The layout for the PreferenceFragment. This should rarely need to be changed. -->
         <attr name="layout" />
+        <attr name="divider" />
     </declare-styleable>
 
     <!-- Base attributes available to PreferenceActivity. -->
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 76f7062..b87d9e2 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -411,7 +411,7 @@
     <bool translatable="false" name="config_wifi_revert_country_code_on_cellular_loss">false</bool>
 
     <!-- Boolean indicating whether or not wifi firmware debugging is enabled -->
-    <bool translatable="false" name="config_wifi_enable_wifi_firmware_debugging">false</bool>
+    <bool translatable="false" name="config_wifi_enable_wifi_firmware_debugging">true</bool>
 
     <!-- Integer specifying the basic autojoin parameters -->
     <integer translatable="false" name="config_wifi_framework_5GHz_preference_boost_threshold">-65</integer>
@@ -1530,8 +1530,8 @@
     <!-- If the time difference is greater than this threshold in milliseconds,
          then update the time. -->
     <integer name="config_ntpThreshold">5000</integer>
-    <!-- Timeout to wait for NTP server response. -->
-    <integer name="config_ntpTimeout">20000</integer>
+    <!-- Timeout to wait for NTP server response in milliseconds. -->
+    <integer name="config_ntpTimeout">5000</integer>
 
     <!-- Default network policy warning threshold, in megabytes. -->
     <integer name="config_networkPolicyDefaultWarning">2048</integer>
diff --git a/core/res/res/values/ids.xml b/core/res/res/values/ids.xml
index 695dafa..9d5e5ac 100644
--- a/core/res/res/values/ids.xml
+++ b/core/res/res/values/ids.xml
@@ -23,12 +23,14 @@
   <item type="id" name="empty" />
   <item type="id" name="hint" />
   <item type="id" name="icon" />
+  <item type="id" name="icon_frame" />
   <item type="id" name="icon_badge" />
   <item type="id" name="icon1" />
   <item type="id" name="icon2" />
   <item type="id" name="input" />
   <item type="id" name="left_icon" />
   <item type="id" name="list" />
+  <item type="id" name="list_container" />
   <item type="id" name="menu" />
   <item type="id" name="message" />
   <item type="id" name="primary" />
@@ -48,6 +50,7 @@
   <item type="id" name="lock_screen" />
   <item type="id" name="edit" />
   <item type="id" name="widget_frame" />
+  <item type="id" name="switch_widget" />
   <item type="id" name="button1" />
   <item type="id" name="button2" />
   <item type="id" name="button3" />
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 43a6acd..54e43c8 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -2681,6 +2681,7 @@
     <public type="attr" name="windowBackgroundFallback" />
     <public type="attr" name="forceDeviceEncrypted" />
     <public type="attr" name="encryptionAware" />
+    <public type="attr" name="preferenceFragmentStyle" />
 
     <public type="style" name="Theme.Material.DayNight" />
     <public type="style" name="Theme.Material.DayNight.DarkActionBar" />
@@ -2701,5 +2702,8 @@
     <public type="style" name="Theme.Material.DayNight.DialogWhenLarge.DarkActionBar" />
 
     <public type="id" name="accessibilityActionSetProgress" />
+    <public type="id" name="icon_frame" />
+    <public type="id" name="list_container" />
+    <public type="id" name="switch_widget" />
 
 </resources>
diff --git a/core/res/res/values/styles_material.xml b/core/res/res/values/styles_material.xml
index 58640eb..4b2a451 100644
--- a/core/res/res/values/styles_material.xml
+++ b/core/res/res/values/styles_material.xml
@@ -40,6 +40,7 @@
         <item name="layout">@layout/preference_list_fragment_material</item>
         <item name="paddingStart">@dimen/preference_fragment_padding_side_material</item>
         <item name="paddingEnd">@dimen/preference_fragment_padding_side_material</item>
+        <item name="divider">?attr/listDivider</item>
     </style>
 
     <style name="PreferenceActivity.Material">
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index cda7faa..6820c25 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -162,7 +162,7 @@
   <java-symbol type="id" name="submit_area" />
   <java-symbol type="id" name="switch_new" />
   <java-symbol type="id" name="switch_old" />
-  <java-symbol type="id" name="switchWidget" />
+  <java-symbol type="id" name="switch_widget" />
   <java-symbol type="id" name="text" />
   <java-symbol type="id" name="time" />
   <java-symbol type="id" name="time_current" />
diff --git a/core/tests/coretests/src/android/content/pm/AppsQueryHelperTests.java b/core/tests/coretests/src/android/content/pm/AppsQueryHelperTests.java
index 4c9b00a..dcf2c89 100644
--- a/core/tests/coretests/src/android/content/pm/AppsQueryHelperTests.java
+++ b/core/tests/coretests/src/android/content/pm/AppsQueryHelperTests.java
@@ -33,7 +33,7 @@
     @Override
     public void setUp() throws Exception {
         super.setUp();
-        mAppsQueryHelper = new AppsQueryHelperTestable(getContext());
+        mAppsQueryHelper = new AppsQueryHelperTestable();
     }
 
     public void testQueryAppsSystemAppsOnly() {
@@ -78,33 +78,20 @@
         assertEqualsIgnoreOrder(Arrays.asList("sys_app1", "sys_app3"), apps);
     }
 
-    public void testQueryAppsDefaultIme() {
-        // Test query default system IMEs
-        List<String> apps = mAppsQueryHelper.queryApps(AppsQueryHelper.GET_DEFAULT_IMES,
+    public void testQueryAppsImes() {
+        // Test query system IMEs
+        List<String> apps = mAppsQueryHelper.queryApps(AppsQueryHelper.GET_IMES,
                 true, UserHandle.of(UserHandle.myUserId()));
         assertEqualsIgnoreOrder(Arrays.asList("sys_app1"), apps);
 
-        // Test query default IMEs
-        apps = mAppsQueryHelper.queryApps(AppsQueryHelper.GET_DEFAULT_IMES, false,
+        // Test query IMEs
+        apps = mAppsQueryHelper.queryApps(AppsQueryHelper.GET_IMES, false,
                 UserHandle.of(UserHandle.myUserId()));
         assertEqualsIgnoreOrder(Arrays.asList("sys_app1", "app4"), apps);
-
-        // Test that GET_DEFAULT_IMES cannot be used with a user id different from current process
-        try {
-            mAppsQueryHelper.queryApps(AppsQueryHelper.GET_DEFAULT_IMES, false,
-                    UserHandle.of(UserHandle.USER_NULL));
-            fail("queryApps must fail if wrong user was passed");
-        } catch (IllegalArgumentException e) {
-            // OK
-        }
     }
 
     private class AppsQueryHelperTestable extends AppsQueryHelper {
 
-        public AppsQueryHelperTestable(Context context) {
-            super(context);
-        }
-
         @Override
         protected List<ApplicationInfo> getAllApps(int userId) {
             final ApplicationInfo ai1 = new ApplicationInfo();
@@ -145,18 +132,19 @@
         }
 
         @Override
-        protected List<InputMethodInfo> getInputMethodList() {
+        protected List<ResolveInfo> queryIntentServicesAsUser(Intent intent, int userId) {
             final ResolveInfo sysApp1 = new ResolveInfo();
             sysApp1.serviceInfo = new ServiceInfo();
             sysApp1.serviceInfo.packageName = "sys_app1";
             sysApp1.serviceInfo.name = "name";
-            InputMethodInfo imi1 = new InputMethodInfo(sysApp1, false, null, null, 0, true);
+            sysApp1.serviceInfo.applicationInfo = new ApplicationInfo();
+            sysApp1.serviceInfo.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
             final ResolveInfo app4 = new ResolveInfo();
             app4.serviceInfo = new ServiceInfo();
             app4.serviceInfo.packageName = "app4";
             app4.serviceInfo.name = "name";
-            InputMethodInfo imi2 = new InputMethodInfo(app4, false, null, null, 0, true);
-            return Arrays.asList(imi1, imi2);
+            app4.serviceInfo.applicationInfo = new ApplicationInfo();
+            return Arrays.asList(sysApp1, app4);
         }
     }
 
diff --git a/core/tests/coretests/src/android/widget/SuggestionsPopupWindowTest.java b/core/tests/coretests/src/android/widget/SuggestionsPopupWindowTest.java
index 87b3785..3ce45e9 100644
--- a/core/tests/coretests/src/android/widget/SuggestionsPopupWindowTest.java
+++ b/core/tests/coretests/src/android/widget/SuggestionsPopupWindowTest.java
@@ -61,11 +61,13 @@
         final int expectedHighlightTextColor = tmpTp.getColor();
         final float expectedHighlightTextSize = tmpTp.getTextSize();
 
-        // Create and wait until SuggestionsPopupWindow is shown.
         final EditText editText = (EditText) activity.findViewById(R.id.textview);
         final Editor editor = editText.getEditorForTesting();
         assertNotNull(editor);
-        activity.runOnUiThread(new Runnable() {
+
+        // Request to show SuggestionsPopupWindow.
+        Runnable showSuggestionWindowRunner = new Runnable() {
+            @Override
             public void run() {
                 SpannableStringBuilder ssb = new SpannableStringBuilder();
                 ssb.append(sampleText);
@@ -78,8 +80,7 @@
                 Selection.setSelection(editText.getText(), singleWordSpanStart, singleWordSpanEnd);
                 editText.onTextContextMenuItem(TextView.ID_REPLACE);
             }
-        });
-        getInstrumentation().waitForIdleSync();
+        };
 
         // In this test, the SuggestionsPopupWindow looks like
         //   abc def ghi
@@ -91,7 +92,8 @@
         // | DELETE        |
         // -----------------
         // *XX* means that XX is highlighted.
-        activity.runOnUiThread(new Runnable() {
+        Runnable popupVaridator = new Runnable() {
+            @Override
             public void run() {
                 Editor.SuggestionsPopupWindow popupWindow =
                         editor.getSuggestionsPopupWindowForTesting();
@@ -155,6 +157,25 @@
                     assertEquals(multiWordSpanEnd, spanned.getSpanEnd(taSpan[0]));
                 }
             }
+        };
+
+        // Show the SuggestionWindow and verify the contents.
+        activity.runOnUiThread(showSuggestionWindowRunner);
+        getInstrumentation().waitForIdleSync();
+        activity.runOnUiThread(popupVaridator);
+
+        // Request to hide the SuggestionPopupWindow and wait until it is hidden.
+        activity.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                editText.setText("");
+            }
         });
+        getInstrumentation().waitForIdleSync();
+
+        // Show and verify the contents again.
+        activity.runOnUiThread(showSuggestionWindowRunner);
+        getInstrumentation().waitForIdleSync();
+        activity.runOnUiThread(popupVaridator);
     }
 }
diff --git a/docs/html/guide/topics/manifest/uses-feature-element.jd b/docs/html/guide/topics/manifest/uses-feature-element.jd
index c1ccef0..21e3057 100644
--- a/docs/html/guide/topics/manifest/uses-feature-element.jd
+++ b/docs/html/guide/topics/manifest/uses-feature-element.jd
@@ -562,10 +562,11 @@
     <tr>
        <td rowspan="6">Camera</td>
        <td><code>android.hardware.camera</code></td>
-       <td>The application uses the device's camera. If the device supports
-           multiple cameras, the application uses the camera that facing
-           away from the screen.</td>
-       <td></td>
+       <td>The application uses the device's back-facing (main) camera.</td>
+       <td>Devices with only a front-facing camera do not list this feature, so the
+           <code>android.hardware.camera.any</code> feature should be
+           used instead if a camera facing any direction is acceptable for the
+           application.</td>
     </tr>
 <tr>
   <td><code>android.hardware.camera.autofocus</code></td>
diff --git a/graphics/java/android/graphics/drawable/Drawable.java b/graphics/java/android/graphics/drawable/Drawable.java
index 39d13df..a50c945 100644
--- a/graphics/java/android/graphics/drawable/Drawable.java
+++ b/graphics/java/android/graphics/drawable/Drawable.java
@@ -913,16 +913,26 @@
     protected void onBoundsChange(Rect bounds) {}
 
     /**
-     * Return the intrinsic width of the underlying drawable object.  Returns
-     * -1 if it has no intrinsic width, such as with a solid color.
+     * Returns the drawable's intrinsic width.
+     * <p>
+     * Intrinsic width is the width at which the drawable would like to be laid
+     * out, including any inherent padding. If the drawable has no intrinsic
+     * width, such as a solid color, this method returns -1.
+     *
+     * @return the intrinsic width, or -1 if no intrinsic width
      */
     public int getIntrinsicWidth() {
         return -1;
     }
 
     /**
-     * Return the intrinsic height of the underlying drawable object. Returns
-     * -1 if it has no intrinsic height, such as with a solid color.
+     * Returns the drawable's intrinsic height.
+     * <p>
+     * Intrinsic height is the height at which the drawable would like to be
+     * laid out, including any inherent padding. If the drawable has no
+     * intrinsic height, such as a solid color, this method returns -1.
+     *
+     * @return the intrinsic height, or -1 if no intrinsic height
      */
     public int getIntrinsicHeight() {
         return -1;
@@ -1230,30 +1240,54 @@
      */
     public static abstract class ConstantState {
         /**
-         * Create a new drawable without supplying resources the caller
-         * is running in.  Note that using this means the density-dependent
-         * drawables (like bitmaps) will not be able to update their target
-         * density correctly. One should use {@link #newDrawable(Resources)}
-         * instead to provide a resource.
+         * Creates a new Drawable instance from its constant state.
+         * <p>
+         * <strong>Note:</strong> Using this method means density-dependent
+         * properties, such as pixel dimensions or bitmap images, will not be
+         * updated to match the density of the target display. To ensure
+         * correct scaling, use {@link #newDrawable(Resources)} instead to
+         * provide an appropriate Resources object.
+         *
+         * @return a new drawable object based on this constant state
+         * @see {@link #newDrawable(Resources)}
          */
+        @NonNull
         public abstract Drawable newDrawable();
 
         /**
-         * Create a new Drawable instance from its constant state.  This
-         * must be implemented for drawables that change based on the target
-         * density of their caller (that is depending on whether it is
-         * in compatibility mode).
+         * Creates a new Drawable instance from its constant state using the
+         * specified resources. This method should be implemented for drawables
+         * that have density-dependent properties.
+         * <p>
+         * The default implementation for this method calls through to
+         * {@link #newDrawable()}.
+         *
+         * @param res the resources of the context in which the drawable will
+         *            be displayed
+         * @return a new drawable object based on this constant state
          */
-        public Drawable newDrawable(Resources res) {
+        @NonNull
+        public Drawable newDrawable(@Nullable Resources res) {
             return newDrawable();
         }
 
         /**
-         * Create a new Drawable instance from its constant state. This must be
-         * implemented for drawables that can have a theme applied.
+         * Creates a new Drawable instance from its constant state using the
+         * specified resources and theme. This method should be implemented for
+         * drawables that have theme-dependent properties.
+         * <p>
+         * The default implementation for this method calls through to
+         * {@link #newDrawable(Resources)}.
+         *
+         * @param res the resources of the context in which the drawable will
+         *            be displayed
+         * @param theme the theme of the context in which the drawable will be
+         *              displayed
+         * @return a new drawable object based on this constant state
          */
-        public Drawable newDrawable(Resources res, Theme theme) {
-            return newDrawable(null);
+        @NonNull
+        public Drawable newDrawable(@Nullable Resources res, @Nullable Theme theme) {
+            return newDrawable(res);
         }
 
         /**
diff --git a/graphics/java/android/graphics/drawable/InsetDrawable.java b/graphics/java/android/graphics/drawable/InsetDrawable.java
index 927b9c9..36d4272 100644
--- a/graphics/java/android/graphics/drawable/InsetDrawable.java
+++ b/graphics/java/android/graphics/drawable/InsetDrawable.java
@@ -222,12 +222,20 @@
 
     @Override
     public int getIntrinsicWidth() {
-        return getDrawable().getIntrinsicWidth() + mState.mInsetLeft + mState.mInsetRight;
+        final int childWidth = getDrawable().getIntrinsicWidth();
+        if (childWidth < 0) {
+            return -1;
+        }
+        return childWidth + mState.mInsetLeft + mState.mInsetRight;
     }
 
     @Override
     public int getIntrinsicHeight() {
-        return getDrawable().getIntrinsicHeight() + mState.mInsetTop + mState.mInsetBottom;
+        final int childHeight = getDrawable().getIntrinsicHeight();
+        if (childHeight < 0) {
+            return -1;
+        }
+        return childHeight + mState.mInsetTop + mState.mInsetBottom;
     }
 
     @Override
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index 5cdd723..4acad67 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -9,6 +9,7 @@
     font/Font.cpp \
     renderstate/Blend.cpp \
     renderstate/MeshState.cpp \
+    renderstate/OffscreenBufferPool.cpp \
     renderstate/PixelBufferState.cpp \
     renderstate/RenderState.cpp \
     renderstate/Scissor.cpp \
@@ -216,6 +217,7 @@
     unit_tests/LayerUpdateQueueTests.cpp \
     unit_tests/LinearAllocatorTests.cpp \
     unit_tests/PathParserTests.cpp \
+    unit_tests/OffscreenBufferPoolTests.cpp \
     unit_tests/StringUtilsTests.cpp
 
 ifeq (true, $(HWUI_NEW_OPS))
diff --git a/libs/hwui/BakedOpRenderer.cpp b/libs/hwui/BakedOpRenderer.cpp
index 2fca5ea..1aa291f 100644
--- a/libs/hwui/BakedOpRenderer.cpp
+++ b/libs/hwui/BakedOpRenderer.cpp
@@ -19,104 +19,29 @@
 #include "Caches.h"
 #include "Glop.h"
 #include "GlopBuilder.h"
+#include "renderstate/OffscreenBufferPool.h"
 #include "renderstate/RenderState.h"
-#include "utils/FatVector.h"
 #include "utils/GLUtils.h"
+#include "VertexBuffer.h"
 
 namespace android {
 namespace uirenderer {
 
 ////////////////////////////////////////////////////////////////////////////////
-// OffscreenBuffer
-////////////////////////////////////////////////////////////////////////////////
-
-OffscreenBuffer::OffscreenBuffer(RenderState& renderState, Caches& caches,
-        uint32_t textureWidth, uint32_t textureHeight,
-        uint32_t viewportWidth, uint32_t viewportHeight)
-        : renderState(renderState)
-        , viewportWidth(viewportWidth)
-        , viewportHeight(viewportHeight)
-        , texture(caches) {
-    texture.width = textureWidth;
-    texture.height = textureHeight;
-
-    caches.textureState().activateTexture(0);
-    glGenTextures(1, &texture.id);
-    caches.textureState().bindTexture(GL_TEXTURE_2D, texture.id);
-
-    texture.setWrap(GL_CLAMP_TO_EDGE, false, false, GL_TEXTURE_2D);
-    // not setting filter on texture, since it's set when drawing, based on transform
-
-    glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture.width, texture.height, 0,
-            GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
-}
-
-void OffscreenBuffer::updateMeshFromRegion() {
-    // avoid T-junctions as they cause artifacts in between the resultant
-    // geometry when complex transforms occur.
-    // TODO: generate the safeRegion only if necessary based on drawing transform
-    Region safeRegion = Region::createTJunctionFreeRegion(region);
-
-    size_t count;
-    const android::Rect* rects = safeRegion.getArray(&count);
-
-    const float texX = 1.0f / float(viewportWidth);
-    const float texY = 1.0f / float(viewportHeight);
-
-    FatVector<TextureVertex, 64> meshVector(count * 4); // uses heap if more than 64 vertices needed
-    TextureVertex* mesh = &meshVector[0];
-    for (size_t i = 0; i < count; i++) {
-        const android::Rect* r = &rects[i];
-
-        const float u1 = r->left * texX;
-        const float v1 = (viewportHeight - r->top) * texY;
-        const float u2 = r->right * texX;
-        const float v2 = (viewportHeight - r->bottom) * texY;
-
-        TextureVertex::set(mesh++, r->left, r->top, u1, v1);
-        TextureVertex::set(mesh++, r->right, r->top, u2, v1);
-        TextureVertex::set(mesh++, r->left, r->bottom, u1, v2);
-        TextureVertex::set(mesh++, r->right, r->bottom, u2, v2);
-    }
-    elementCount = count * 6;
-    renderState.meshState().genOrUpdateMeshBuffer(&vbo,
-            sizeof(TextureVertex) * count * 4,
-            &meshVector[0],
-            GL_DYNAMIC_DRAW); // TODO: GL_STATIC_DRAW if savelayer
-}
-
-OffscreenBuffer::~OffscreenBuffer() {
-    texture.deleteTexture();
-    renderState.meshState().deleteMeshBuffer(vbo);
-    elementCount = 0;
-    vbo = 0;
-}
-
-////////////////////////////////////////////////////////////////////////////////
 // BakedOpRenderer
 ////////////////////////////////////////////////////////////////////////////////
 
-OffscreenBuffer* BakedOpRenderer::createOffscreenBuffer(RenderState& renderState,
-        uint32_t width, uint32_t height) {
-    // TODO: get from cache!
-    return new OffscreenBuffer(renderState, Caches::getInstance(), width, height, width, height);
-}
-
-void BakedOpRenderer::destroyOffscreenBuffer(OffscreenBuffer* offscreenBuffer) {
-    // TODO: return texture/offscreenbuffer to cache!
-    delete offscreenBuffer;
-}
-
-OffscreenBuffer* BakedOpRenderer::createLayer(uint32_t width, uint32_t height) {
+OffscreenBuffer* BakedOpRenderer::startTemporaryLayer(uint32_t width, uint32_t height) {
     LOG_ALWAYS_FATAL_IF(mRenderTarget.offscreenBuffer, "already has layer...");
 
-    OffscreenBuffer* buffer = createOffscreenBuffer(mRenderState, width, height);
-    startLayer(buffer);
+    OffscreenBuffer* buffer = mRenderState.layerPool().get(mRenderState, width, height);
+    startRepaintLayer(buffer);
     return buffer;
 }
 
-void BakedOpRenderer::startLayer(OffscreenBuffer* offscreenBuffer) {
+void BakedOpRenderer::startRepaintLayer(OffscreenBuffer* offscreenBuffer) {
+    LOG_ALWAYS_FATAL_IF(mRenderTarget.offscreenBuffer, "already has layer...");
+
     mRenderTarget.offscreenBuffer = offscreenBuffer;
 
     // create and bind framebuffer
@@ -261,6 +186,71 @@
     renderer.renderGlop(state, glop);
 }
 
+namespace VertexBufferRenderFlags {
+    enum {
+        Offset = 0x1,
+        ShadowInterp = 0x2,
+    };
+}
+
+static void renderVertexBuffer(BakedOpRenderer& renderer, const BakedOpState& state,
+        const VertexBuffer& vertexBuffer, float translateX, float translateY,
+        SkPaint& paint, int vertexBufferRenderFlags) {
+    if (CC_LIKELY(vertexBuffer.getVertexCount())) {
+        bool shadowInterp = vertexBufferRenderFlags & VertexBufferRenderFlags::ShadowInterp;
+        const int transformFlags = TransformFlags::OffsetByFudgeFactor;
+        Glop glop;
+        GlopBuilder(renderer.renderState(), renderer.caches(), &glop)
+                .setRoundRectClipState(state.roundRectClipState)
+                .setMeshVertexBuffer(vertexBuffer, shadowInterp)
+                .setFillPaint(paint, state.alpha)
+                .setTransform(state.computedState.transform, transformFlags)
+                .setModelViewOffsetRect(translateX, translateY, vertexBuffer.getBounds())
+                .build();
+        renderer.renderGlop(state, glop);
+    }
+}
+
+static void renderShadow(BakedOpRenderer& renderer, const BakedOpState& state, float casterAlpha,
+        const VertexBuffer* ambientShadowVertexBuffer, const VertexBuffer* spotShadowVertexBuffer) {
+    SkPaint paint;
+    paint.setAntiAlias(true); // want to use AlphaVertex
+
+    // The caller has made sure casterAlpha > 0.
+    uint8_t ambientShadowAlpha = 128u; //TODO: mAmbientShadowAlpha;
+    if (CC_UNLIKELY(Properties::overrideAmbientShadowStrength >= 0)) {
+        ambientShadowAlpha = Properties::overrideAmbientShadowStrength;
+    }
+    if (ambientShadowVertexBuffer && ambientShadowAlpha > 0) {
+        paint.setAlpha((uint8_t)(casterAlpha * ambientShadowAlpha));
+        renderVertexBuffer(renderer, state, *ambientShadowVertexBuffer, 0, 0,
+                paint, VertexBufferRenderFlags::ShadowInterp);
+    }
+
+    uint8_t spotShadowAlpha = 128u; //TODO: mSpotShadowAlpha;
+    if (CC_UNLIKELY(Properties::overrideSpotShadowStrength >= 0)) {
+        spotShadowAlpha = Properties::overrideSpotShadowStrength;
+    }
+    if (spotShadowVertexBuffer && spotShadowAlpha > 0) {
+        paint.setAlpha((uint8_t)(casterAlpha * spotShadowAlpha));
+        renderVertexBuffer(renderer, state, *spotShadowVertexBuffer, 0, 0,
+                paint, VertexBufferRenderFlags::ShadowInterp);
+    }
+}
+
+void BakedOpDispatcher::onShadowOp(BakedOpRenderer& renderer, const ShadowOp& op, const BakedOpState& state) {
+    TessellationCache::vertexBuffer_pair_t buffers;
+    Vector3 lightCenter = { 300, 300, 300 }; // TODO!
+    float lightRadius = 150; // TODO!
+
+    renderer.caches().tessellationCache.getShadowBuffers(&state.computedState.transform,
+            op.localClipRect, op.casterAlpha >= 1.0f, op.casterPath,
+            &op.shadowMatrixXY, &op.shadowMatrixZ, lightCenter, lightRadius,
+            buffers);
+
+    renderShadow(renderer, state, op.casterAlpha, buffers.first, buffers.second);
+}
+
 void BakedOpDispatcher::onSimpleRectsOp(BakedOpRenderer& renderer, const SimpleRectsOp& op, const BakedOpState& state) {
     Glop glop;
     GlopBuilder(renderer.renderState(), renderer.caches(), &glop)
@@ -291,7 +281,7 @@
     renderer.renderGlop(state, glop);
 
     if (op.destroy) {
-        BakedOpRenderer::destroyOffscreenBuffer(buffer);
+        renderer.renderState().layerPool().putOrDelete(buffer);
     }
 }
 
diff --git a/libs/hwui/BakedOpRenderer.h b/libs/hwui/BakedOpRenderer.h
index aa1e67d..d6d9cb1 100644
--- a/libs/hwui/BakedOpRenderer.h
+++ b/libs/hwui/BakedOpRenderer.h
@@ -29,33 +29,6 @@
 class RenderState;
 
 /**
- * Lightweight alternative to Layer. Owns the persistent state of an offscreen render target, and
- * encompasses enough information to draw it back on screen (minus paint properties, which are held
- * by LayerOp).
- */
-class OffscreenBuffer {
-public:
-    OffscreenBuffer(RenderState& renderState, Caches& caches,
-            uint32_t textureWidth, uint32_t textureHeight,
-            uint32_t viewportWidth, uint32_t viewportHeight);
-    ~OffscreenBuffer();
-
-    // must be called prior to rendering, to construct/update vertex buffer
-    void updateMeshFromRegion();
-
-    RenderState& renderState;
-    uint32_t viewportWidth;
-    uint32_t viewportHeight;
-    Texture texture;
-
-    // Portion of offscreen buffer that has been drawn to. Used to minimize drawing area when
-    // drawing back to screen / parent FBO.
-    Region region;
-    GLsizei elementCount = 0;
-    GLuint vbo = 0;
-};
-
-/**
  * Main rendering manager for a collection of work - one frame + any contained FBOs.
  *
  * Manages frame and FBO lifecycle, binding the GL framebuffer as appropriate. This is the only
@@ -72,17 +45,13 @@
             , mOpaque(opaque) {
     }
 
-    static OffscreenBuffer* createOffscreenBuffer(RenderState& renderState,
-            uint32_t width, uint32_t height);
-    static void destroyOffscreenBuffer(OffscreenBuffer*);
-
     RenderState& renderState() { return mRenderState; }
     Caches& caches() { return mCaches; }
 
     void startFrame(uint32_t width, uint32_t height);
     void endFrame();
-    OffscreenBuffer* createLayer(uint32_t width, uint32_t height);
-    void startLayer(OffscreenBuffer* offscreenBuffer);
+    OffscreenBuffer* startTemporaryLayer(uint32_t width, uint32_t height);
+    void startRepaintLayer(OffscreenBuffer* offscreenBuffer);
     void endLayer();
 
     Texture* getTexture(const SkBitmap* bitmap);
diff --git a/libs/hwui/BakedOpState.h b/libs/hwui/BakedOpState.h
index ddb8c84..9a40c3b 100644
--- a/libs/hwui/BakedOpState.h
+++ b/libs/hwui/BakedOpState.h
@@ -89,6 +89,21 @@
          *         and early return null in one place.
          */
     }
+
+    /**
+     * Constructor for unbounded ops without transform/clip (namely shadows)
+     *
+     * Since the op doesn't have known bounds, we conservatively set the mapped bounds
+     * to the current clipRect, and clipSideFlags to Full.
+     */
+    ResolvedRenderState(const Snapshot& snapshot) {
+        transform = *snapshot.transform;
+        clipRect = snapshot.getRenderTargetClip();
+        clippedBounds = clipRect;
+        transform.mapRect(clippedBounds);
+        clipSideFlags = OpClipSideFlags::Full;
+    }
+
     Matrix4 transform;
     Rect clipRect;
     int clipSideFlags = 0;
@@ -104,8 +119,7 @@
 public:
     static BakedOpState* tryConstruct(LinearAllocator& allocator,
             const Snapshot& snapshot, const RecordedOp& recordedOp) {
-        BakedOpState* bakedOp = new (allocator) BakedOpState(
-                snapshot, recordedOp);
+        BakedOpState* bakedOp = new (allocator) BakedOpState(snapshot, recordedOp);
         if (bakedOp->computedState.clippedBounds.isEmpty()) {
             // bounds are empty, so op is rejected
             allocator.rewindIfLastAlloc(bakedOp);
@@ -114,6 +128,14 @@
         return bakedOp;
     }
 
+    static BakedOpState* tryShadowOpConstruct(LinearAllocator& allocator,
+            const Snapshot& snapshot, const ShadowOp* shadowOpPtr) {
+        if (snapshot.getRenderTargetClip().isEmpty()) return nullptr;
+
+        // clip isn't empty, so construct the op
+        return new (allocator) BakedOpState(snapshot, shadowOpPtr);
+    }
+
     static void* operator new(size_t size, LinearAllocator& allocator) {
         return allocator.alloc(size);
     }
@@ -134,6 +156,13 @@
             , roundRectClipState(snapshot.roundRectClipState)
             , projectionPathMask(snapshot.projectionPathMask)
             , op(&recordedOp) {}
+
+    BakedOpState(const Snapshot& snapshot, const ShadowOp* shadowOpPtr)
+            : computedState(snapshot)
+            , alpha(snapshot.alpha)
+            , roundRectClipState(snapshot.roundRectClipState)
+            , projectionPathMask(snapshot.projectionPathMask)
+            , op(shadowOpPtr) {}
 };
 
 }; // namespace uirenderer
diff --git a/libs/hwui/DeviceInfo.cpp b/libs/hwui/DeviceInfo.cpp
index 03b1706..39b7ecb 100644
--- a/libs/hwui/DeviceInfo.cpp
+++ b/libs/hwui/DeviceInfo.cpp
@@ -40,7 +40,6 @@
 }
 
 void DeviceInfo::load() {
-    mExtensions.load();
     glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
 }
 
diff --git a/libs/hwui/DisplayListCanvas.h b/libs/hwui/DisplayListCanvas.h
index fc08504..609103b 100644
--- a/libs/hwui/DisplayListCanvas.h
+++ b/libs/hwui/DisplayListCanvas.h
@@ -17,6 +17,14 @@
 #ifndef ANDROID_HWUI_DISPLAY_LIST_RENDERER_H
 #define ANDROID_HWUI_DISPLAY_LIST_RENDERER_H
 
+#include "Canvas.h"
+#include "CanvasState.h"
+#include "DisplayList.h"
+#include "RenderNode.h"
+#include "ResourceCache.h"
+#include "SkiaCanvasProxy.h"
+#include "utils/Macros.h"
+
 #include <SkDrawFilter.h>
 #include <SkMatrix.h>
 #include <SkPaint.h>
@@ -25,13 +33,6 @@
 #include <SkTLazy.h>
 #include <cutils/compiler.h>
 
-#include "Canvas.h"
-#include "CanvasState.h"
-#include "DisplayList.h"
-#include "SkiaCanvasProxy.h"
-#include "RenderNode.h"
-#include "ResourceCache.h"
-
 namespace android {
 namespace uirenderer {
 
@@ -66,7 +67,7 @@
     virtual ~DisplayListCanvas();
 
     void reset(int width, int height);
-    __attribute__((warn_unused_result)) DisplayList* finishRecording();
+    WARN_UNUSED_RESULT DisplayList* finishRecording();
 
 // ----------------------------------------------------------------------------
 // HWUI Canvas state operations
diff --git a/libs/hwui/Extensions.cpp b/libs/hwui/Extensions.cpp
index e257715..02caaa4 100644
--- a/libs/hwui/Extensions.cpp
+++ b/libs/hwui/Extensions.cpp
@@ -35,7 +35,7 @@
 #endif
 
 
-void Extensions::load() {
+Extensions::Extensions() {
     auto extensions = StringUtils::split((const char*) glGetString(GL_EXTENSIONS));
     mHasNPot = extensions.has("GL_OES_texture_npot");
     mHasFramebufferFetch = extensions.has("GL_NV_shader_framebuffer_fetch");
diff --git a/libs/hwui/Extensions.h b/libs/hwui/Extensions.h
index 8ccfabd..67cc747 100644
--- a/libs/hwui/Extensions.h
+++ b/libs/hwui/Extensions.h
@@ -31,7 +31,7 @@
 
 class Extensions {
 public:
-    void load();
+    Extensions();
 
     inline bool hasNPot() const { return mHasNPot; }
     inline bool hasFramebufferFetch() const { return mHasFramebufferFetch; }
diff --git a/libs/hwui/LayerCache.cpp b/libs/hwui/LayerCache.cpp
index 39cadd1..b117754 100644
--- a/libs/hwui/LayerCache.cpp
+++ b/libs/hwui/LayerCache.cpp
@@ -14,13 +14,14 @@
  * limitations under the License.
  */
 
-#include <GLES2/gl2.h>
+#include "LayerCache.h"
+
+#include "Caches.h"
+#include "Properties.h"
 
 #include <utils/Log.h>
 
-#include "Caches.h"
-#include "LayerCache.h"
-#include "Properties.h"
+#include <GLES2/gl2.h>
 
 namespace android {
 namespace uirenderer {
@@ -29,15 +30,9 @@
 // Constructors/destructor
 ///////////////////////////////////////////////////////////////////////////////
 
-LayerCache::LayerCache(): mSize(0), mMaxSize(MB(DEFAULT_LAYER_CACHE_SIZE)) {
-    char property[PROPERTY_VALUE_MAX];
-    if (property_get(PROPERTY_LAYER_CACHE_SIZE, property, nullptr) > 0) {
-        INIT_LOGD("  Setting layer cache size to %sMB", property);
-        setMaxSize(MB(atof(property)));
-    } else {
-        INIT_LOGD("  Using default layer cache size of %.2fMB", DEFAULT_LAYER_CACHE_SIZE);
-    }
-}
+LayerCache::LayerCache()
+        : mSize(0)
+        , mMaxSize(Properties::layerPoolSize) {}
 
 LayerCache::~LayerCache() {
     clear();
diff --git a/libs/hwui/OpReorderer.cpp b/libs/hwui/OpReorderer.cpp
index 68f80ea..80efaed 100644
--- a/libs/hwui/OpReorderer.cpp
+++ b/libs/hwui/OpReorderer.cpp
@@ -22,6 +22,7 @@
 #include "utils/PaintUtils.h"
 
 #include <SkCanvas.h>
+#include <SkPathOps.h>
 #include <utils/Trace.h>
 #include <utils/TypeHelpers.h>
 
@@ -312,7 +313,7 @@
         : mCanvasState(*this) {
     ATRACE_NAME("prepare drawing commands");
     mLayerReorderers.emplace_back(viewportWidth, viewportHeight);
-        mLayerStack.push_back(0);
+    mLayerStack.push_back(0);
 
     mCanvasState.initializeSaveStack(viewportWidth, viewportHeight,
             clip.fLeft, clip.fTop, clip.fRight, clip.fBottom,
@@ -347,7 +348,6 @@
 OpReorderer::OpReorderer(int viewportWidth, int viewportHeight, const DisplayList& displayList)
         : mCanvasState(*this) {
     ATRACE_NAME("prepare drawing commands");
-
     mLayerReorderers.emplace_back(viewportWidth, viewportHeight);
     mLayerStack.push_back(0);
 
@@ -462,8 +462,60 @@
 }
 
 void OpReorderer::deferShadow(const RenderNodeOp& casterNodeOp) {
-    // TODO
+    auto& node = *casterNodeOp.renderNode;
+    auto& properties = node.properties();
+
+    if (properties.getAlpha() <= 0.0f
+            || properties.getOutline().getAlpha() <= 0.0f
+            || !properties.getOutline().getPath()
+            || properties.getScaleX() == 0
+            || properties.getScaleY() == 0) {
+        // no shadow to draw
+        return;
+    }
+
+    const SkPath* casterOutlinePath = properties.getOutline().getPath();
+    const SkPath* revealClipPath = properties.getRevealClip().getPath();
+    if (revealClipPath && revealClipPath->isEmpty()) return;
+
+    float casterAlpha = properties.getAlpha() * properties.getOutline().getAlpha();
+
+    // holds temporary SkPath to store the result of intersections
+    SkPath* frameAllocatedPath = nullptr;
+    const SkPath* casterPath = casterOutlinePath;
+
+    // intersect the shadow-casting path with the reveal, if present
+    if (revealClipPath) {
+        frameAllocatedPath = createFrameAllocatedPath();
+
+        Op(*casterPath, *revealClipPath, kIntersect_SkPathOp, frameAllocatedPath);
+        casterPath = frameAllocatedPath;
+    }
+
+    // intersect the shadow-casting path with the clipBounds, if present
+    if (properties.getClippingFlags() & CLIP_TO_CLIP_BOUNDS) {
+        if (!frameAllocatedPath) {
+            frameAllocatedPath = createFrameAllocatedPath();
+        }
+        Rect clipBounds;
+        properties.getClippingRectForFlags(CLIP_TO_CLIP_BOUNDS, &clipBounds);
+        SkPath clipBoundsPath;
+        clipBoundsPath.addRect(clipBounds.left, clipBounds.top,
+                clipBounds.right, clipBounds.bottom);
+
+        Op(*casterPath, clipBoundsPath, kIntersect_SkPathOp, frameAllocatedPath);
+        casterPath = frameAllocatedPath;
+    }
+
+    ShadowOp* shadowOp = new (mAllocator) ShadowOp(casterNodeOp, casterAlpha, casterPath,
+            mCanvasState.getLocalClipBounds());
+    BakedOpState* bakedOpState = BakedOpState::tryShadowOpConstruct(
+            mAllocator, *mCanvasState.currentSnapshot(), shadowOp);
+    if (CC_LIKELY(bakedOpState)) {
+        currentLayer().deferUnmergeableOp(mAllocator, bakedOpState, OpBatchType::Shadow);
+    }
 }
+
 /**
  * Used to define a list of lambdas referencing private OpReorderer::onXXXXOp() methods.
  *
@@ -593,5 +645,9 @@
     LOG_ALWAYS_FATAL("unsupported");
 }
 
+void OpReorderer::onShadowOp(const ShadowOp& op) {
+    LOG_ALWAYS_FATAL("unsupported");
+}
+
 } // namespace uirenderer
 } // namespace android
diff --git a/libs/hwui/OpReorderer.h b/libs/hwui/OpReorderer.h
index 936b6ed..2c30f0d 100644
--- a/libs/hwui/OpReorderer.h
+++ b/libs/hwui/OpReorderer.h
@@ -51,6 +51,7 @@
         AlphaMaskTexture,
         Text,
         ColorText,
+        Shadow,
 
         Count // must be last
     };
@@ -152,11 +153,11 @@
             LayerReorderer& layer = mLayerReorderers[i];
             if (layer.renderNode) {
                 // cached HW layer - can't skip layer if empty
-                renderer.startLayer(layer.offscreenBuffer);
+                renderer.startRepaintLayer(layer.offscreenBuffer);
                 layer.replayBakedOpsImpl((void*)&renderer, receivers);
                 renderer.endLayer();
             } else if (!layer.empty()) { // save layer - skip entire layer if empty
-                layer.offscreenBuffer = renderer.createLayer(layer.width, layer.height);
+                layer.offscreenBuffer = renderer.startTemporaryLayer(layer.width, layer.height);
                 layer.replayBakedOpsImpl((void*)&renderer, receivers);
                 renderer.endLayer();
             }
@@ -210,6 +211,10 @@
 
     void replayBakedOpsImpl(void* arg, BakedOpDispatcher* receivers);
 
+    SkPath* createFrameAllocatedPath() {
+        mFrameAllocatedPaths.emplace_back(new SkPath);
+        return mFrameAllocatedPaths.back().get();
+    }
     /**
      * Declares all OpReorderer::onXXXXOp() methods for every RecordedOp type.
      *
@@ -220,6 +225,8 @@
     void on##Type(const Type& op);
     MAP_OPS(INTERNAL_OP_HANDLER)
 
+    std::vector<std::unique_ptr<SkPath> > mFrameAllocatedPaths;
+
     // List of every deferred layer's render state. Replayed in reverse order to render a frame.
     std::vector<LayerReorderer> mLayerReorderers;
 
diff --git a/libs/hwui/PathParser.cpp b/libs/hwui/PathParser.cpp
index e8ed8a1..35230ff 100644
--- a/libs/hwui/PathParser.cpp
+++ b/libs/hwui/PathParser.cpp
@@ -18,6 +18,7 @@
 
 #include "jni.h"
 
+#include <errno.h>
 #include <utils/Log.h>
 #include <sstream>
 #include <stdlib.h>
@@ -97,14 +98,31 @@
     *outEndPosition = currentIndex;
 }
 
+static float parseFloat(PathParser::ParseResult* result, const char* startPtr, size_t expectedLength) {
+    char* endPtr = NULL;
+    float currentValue = strtof(startPtr, &endPtr);
+    if ((currentValue == HUGE_VALF || currentValue == -HUGE_VALF) && errno == ERANGE) {
+        result->failureOccurred = true;
+        result->failureMessage = "Float out of range:  ";
+        result->failureMessage.append(startPtr, expectedLength);
+    }
+    if (currentValue == 0 && endPtr == startPtr) {
+        // No conversion is done.
+        result->failureOccurred = true;
+        result->failureMessage = "Float format error when parsing: ";
+        result->failureMessage.append(startPtr, expectedLength);
+    }
+    return currentValue;
+}
+
 /**
-* Parse the floats in the string.
-* This is an optimized version of parseFloat(s.split(",|\\s"));
-*
-* @param s the string containing a command and list of floats
-* @return array of floats
-*/
-static void getFloats(std::vector<float>* outPoints, const char* pathStr, int start, int end) {
+ * Parse the floats in the string.
+ *
+ * @param s the string containing a command and list of floats
+ * @return true on success
+ */
+static void getFloats(std::vector<float>* outPoints, PathParser::ParseResult* result,
+        const char* pathStr, int start, int end) {
 
     if (pathStr[start] == 'z' || pathStr[start] == 'Z') {
         return;
@@ -120,7 +138,12 @@
         extract(&endPosition, &endWithNegOrDot, pathStr, startPosition, end);
 
         if (startPosition < endPosition) {
-            outPoints->push_back(strtof(&pathStr[startPosition], NULL));
+            float currentValue = parseFloat(result, &pathStr[startPosition],
+                    end - startPosition);
+            if (result->failureOccurred) {
+                return;
+            }
+            outPoints->push_back(currentValue);
         }
 
         if (endWithNegOrDot) {
@@ -130,10 +153,14 @@
             startPosition = endPosition + 1;
         }
     }
+    return;
 }
 
-void PathParser::getPathDataFromString(PathData* data, const char* pathStr, size_t strLen) {
+void PathParser::getPathDataFromString(PathData* data, ParseResult* result,
+        const char* pathStr, size_t strLen) {
     if (pathStr == NULL) {
+        result->failureOccurred = true;
+        result->failureMessage = "Path string cannot be NULL.";
         return;
     }
 
@@ -143,7 +170,10 @@
     while (end < strLen) {
         end = nextStart(pathStr, strLen, end);
         std::vector<float> points;
-        getFloats(&points, pathStr, start, end);
+        getFloats(&points, result, pathStr, start, end);
+        if (result->failureOccurred) {
+            return;
+        }
         data->verbs.push_back(pathStr[start]);
         data->verbSizes.push_back(points.size());
         data->points.insert(data->points.end(), points.begin(), points.end());
@@ -151,16 +181,11 @@
         end++;
     }
 
-    if ((end - start) == 1 && pathStr[start] != '\0') {
+    if ((end - start) == 1 && start < strLen) {
         data->verbs.push_back(pathStr[start]);
         data->verbSizes.push_back(0);
     }
-
-    int i = 0;
-    while(pathStr[i] != '\0') {
-       i++;
-    }
-
+    return;
 }
 
 void PathParser::dump(const PathData& data) {
@@ -169,6 +194,7 @@
     for (size_t i = 0; i < data.verbs.size(); i++) {
         std::ostringstream os;
         os << data.verbs[i];
+        os << ", verb size: " << data.verbSizes[i];
         for (size_t j = 0; j < data.verbSizes[i]; j++) {
             os << " " << data.points[start + j];
         }
@@ -183,10 +209,20 @@
     ALOGD("points are : %s", os.str().c_str());
 }
 
-void PathParser::parseStringForSkPath(SkPath* skPath, const char* pathStr, size_t strLen) {
+void PathParser::parseStringForSkPath(SkPath* skPath, ParseResult* result, const char* pathStr, size_t strLen) {
     PathData pathData;
-    getPathDataFromString(&pathData, pathStr, strLen);
+    getPathDataFromString(&pathData, result, pathStr, strLen);
+    if (result->failureOccurred) {
+        return;
+    }
+    // Check if there is valid data coming out of parsing the string.
+    if (pathData.verbs.size() == 0) {
+        result->failureOccurred = true;
+        result->failureMessage = "No verbs found in the string for pathData";
+        return;
+    }
     VectorDrawablePath::verbsToPath(skPath, &pathData);
+    return;
 }
 
 }; // namespace uirenderer
diff --git a/libs/hwui/PathParser.h b/libs/hwui/PathParser.h
index 6dc7ee1..a9c1e60 100644
--- a/libs/hwui/PathParser.h
+++ b/libs/hwui/PathParser.h
@@ -21,14 +21,27 @@
 
 #include <jni.h>
 #include <android/log.h>
+#include <cutils/compiler.h>
+
+#include <string>
 
 namespace android {
 namespace uirenderer {
 
+
 class PathParser {
 public:
-    static void parseStringForSkPath(SkPath* outPath, const char* pathStr, size_t strLength);
-    static void getPathDataFromString(PathData* outData, const char* pathStr, size_t strLength);
+    struct ANDROID_API ParseResult {
+        bool failureOccurred = false;
+        std::string failureMessage;
+    };
+    /**
+     * Parse the string literal and create a Skia Path. Return true on success.
+     */
+    ANDROID_API static void parseStringForSkPath(SkPath* outPath, ParseResult* result,
+            const char* pathStr, size_t strLength);
+    static void getPathDataFromString(PathData* outData, ParseResult* result,
+            const char* pathStr, size_t strLength);
     static void dump(const PathData& data);
 };
 
diff --git a/libs/hwui/Properties.cpp b/libs/hwui/Properties.cpp
index e818186..0669596 100644
--- a/libs/hwui/Properties.cpp
+++ b/libs/hwui/Properties.cpp
@@ -37,6 +37,7 @@
 bool Properties::enablePartialUpdates = true;
 
 float Properties::textGamma = DEFAULT_TEXT_GAMMA;
+int Properties::layerPoolSize = DEFAULT_LAYER_CACHE_SIZE;
 
 DebugLevel Properties::debugLevel = kDebugDisabled;
 OverdrawColorSet Properties::overdrawColorSet = OverdrawColorSet::Default;
@@ -52,10 +53,19 @@
 ProfileType Properties::sProfileType = ProfileType::None;
 bool Properties::sDisableProfileBars = false;
 
+static int property_get_int(const char* key, int defaultValue) {
+    char buf[PROPERTY_VALUE_MAX] = {'\0',};
+
+    if (property_get(key, buf, "") > 0) {
+        return atoi(buf);
+    }
+    return defaultValue;
+}
+
 static float property_get_float(const char* key, float defaultValue) {
     char buf[PROPERTY_VALUE_MAX] = {'\0',};
 
-    if (property_get(PROPERTY_PROFILE, buf, "") > 0) {
+    if (property_get(key, buf, "") > 0) {
         return atof(buf);
     }
     return defaultValue;
@@ -114,16 +124,14 @@
 
     showDirtyRegions = property_get_bool(PROPERTY_DEBUG_SHOW_DIRTY_REGIONS, false);
 
-    debugLevel = kDebugDisabled;
-    if (property_get(PROPERTY_DEBUG, property, nullptr) > 0) {
-        debugLevel = (DebugLevel) atoi(property);
-    }
+    debugLevel = (DebugLevel) property_get_int(PROPERTY_DEBUG, kDebugDisabled);
 
     skipEmptyFrames = property_get_bool(PROPERTY_SKIP_EMPTY_DAMAGE, true);
     useBufferAge = property_get_bool(PROPERTY_USE_BUFFER_AGE, true);
     enablePartialUpdates = property_get_bool(PROPERTY_ENABLE_PARTIAL_UPDATES, true);
 
     textGamma = property_get_float(PROPERTY_TEXT_GAMMA, DEFAULT_TEXT_GAMMA);
+    layerPoolSize = MB(property_get_float(PROPERTY_LAYER_CACHE_SIZE, DEFAULT_LAYER_CACHE_SIZE));
 
     return (prevDebugLayersUpdates != debugLayersUpdates)
             || (prevDebugOverdraw != debugOverdraw)
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index 1293c78..1dde7e0 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -267,6 +267,8 @@
 
     static float textGamma;
 
+    static int layerPoolSize;
+
     static DebugLevel debugLevel;
     static OverdrawColorSet overdrawColorSet;
     static StencilClipDebug debugStencilClip;
diff --git a/libs/hwui/RecordedOp.h b/libs/hwui/RecordedOp.h
index 04af8e3..bb7a0a7c 100644
--- a/libs/hwui/RecordedOp.h
+++ b/libs/hwui/RecordedOp.h
@@ -43,6 +43,7 @@
         OP_FN(BitmapOp) \
         OP_FN(RectOp) \
         OP_FN(RenderNodeOp) \
+        OP_FN(ShadowOp) \
         OP_FN(SimpleRectsOp) \
         OP_FN(BeginLayerOp) \
         OP_FN(EndLayerOp) \
@@ -109,6 +110,31 @@
             : SUPER(RectOp) {}
 };
 
+/**
+ * Real-time, dynamic-lit shadow.
+ *
+ * Uses invalid/empty bounds and matrix since ShadowOp bounds aren't known at defer time,
+ * and are resolved dynamically, and transform isn't needed.
+ *
+ * State construction handles these properties specially.
+ */
+struct ShadowOp : RecordedOp {
+    ShadowOp(const RenderNodeOp& casterOp, float casterAlpha, const SkPath* casterPath, const Rect& clipRect)
+            : RecordedOp(RecordedOpId::ShadowOp, Rect(), Matrix4::identity(), clipRect, nullptr)
+            , shadowMatrixXY(casterOp.localMatrix)
+            , shadowMatrixZ(casterOp.localMatrix)
+            , casterAlpha(casterAlpha)
+            , casterPath(casterPath) {
+        const RenderNode& node = *casterOp.renderNode;
+        node.applyViewPropertyTransforms(shadowMatrixXY, false);
+        node.applyViewPropertyTransforms(shadowMatrixZ, true);
+    };
+    Matrix4 shadowMatrixXY;
+    Matrix4 shadowMatrixZ;
+    const float casterAlpha;
+    const SkPath* casterPath;
+};
+
 struct SimpleRectsOp : RecordedOp { // Filled, no AA (TODO: better name?)
     SimpleRectsOp(BASE_PARAMS, Vertex* vertices, size_t vertexCount)
             : SUPER(SimpleRectsOp)
diff --git a/libs/hwui/RecordingCanvas.h b/libs/hwui/RecordingCanvas.h
index fc84c98..f26b0c8 100644
--- a/libs/hwui/RecordingCanvas.h
+++ b/libs/hwui/RecordingCanvas.h
@@ -20,11 +20,12 @@
 #include "Canvas.h"
 #include "CanvasState.h"
 #include "DisplayList.h"
-#include "utils/LinearAllocator.h"
-#include "utils/NinePatch.h"
 #include "ResourceCache.h"
 #include "SkiaCanvasProxy.h"
 #include "Snapshot.h"
+#include "utils/LinearAllocator.h"
+#include "utils/Macros.h"
+#include "utils/NinePatch.h"
 
 #include <SkDrawFilter.h>
 #include <SkPaint.h>
@@ -49,7 +50,7 @@
     virtual ~RecordingCanvas();
 
     void reset(int width, int height);
-    __attribute__((warn_unused_result)) DisplayList* finishRecording();
+    WARN_UNUSED_RESULT DisplayList* finishRecording();
 
 // ----------------------------------------------------------------------------
 // MISC HWUI OPERATIONS - TODO: CATEGORIZE
diff --git a/libs/hwui/RenderNode.cpp b/libs/hwui/RenderNode.cpp
index 15ca718..e177f9a 100644
--- a/libs/hwui/RenderNode.cpp
+++ b/libs/hwui/RenderNode.cpp
@@ -248,22 +248,31 @@
     }
 }
 
-layer_t* createLayer(RenderState& renderState, uint32_t width, uint32_t height) {
+static layer_t* createLayer(RenderState& renderState, uint32_t width, uint32_t height) {
 #if HWUI_NEW_OPS
-    return BakedOpRenderer::createOffscreenBuffer(renderState, width, height);
+    return renderState.layerPool().get(renderState, width, height);
 #else
     return LayerRenderer::createRenderLayer(renderState, width, height);
 #endif
 }
 
-void destroyLayer(layer_t* layer) {
+static void destroyLayer(layer_t* layer) {
 #if HWUI_NEW_OPS
-    BakedOpRenderer::destroyOffscreenBuffer(layer);
+    RenderState& renderState = layer->renderState;
+    renderState.layerPool().putOrDelete(layer);
 #else
     LayerRenderer::destroyLayer(layer);
 #endif
 }
 
+static bool layerMatchesWidthAndHeight(layer_t* layer, int width, int height) {
+#if HWUI_NEW_OPS
+    return layer->viewportWidth == (uint32_t) width && layer->viewportHeight == (uint32_t)height;
+#else
+    return layer->layer.getWidth() == width && layer->layer.getHeight() == height;
+#endif
+}
+
 void RenderNode::pushLayerUpdate(TreeInfo& info) {
     LayerType layerType = properties().effectiveLayerType();
     // If we are not a layer OR we cannot be rendered (eg, view was detached)
@@ -278,17 +287,16 @@
 
     bool transformUpdateNeeded = false;
     if (!mLayer) {
-            mLayer = createLayer(info.canvasContext.getRenderState(), getWidth(), getHeight());
-            damageSelf(info);
-            transformUpdateNeeded = true;
+        mLayer = createLayer(info.canvasContext.getRenderState(), getWidth(), getHeight());
+        damageSelf(info);
+        transformUpdateNeeded = true;
+    } else if (!layerMatchesWidthAndHeight(mLayer, getWidth(), getHeight())) {
 #if HWUI_NEW_OPS
-    } else if (mLayer->viewportWidth != (uint32_t) getWidth()
-            || mLayer->viewportHeight != (uint32_t)getHeight()) {
-        // TODO: allow node's layer to grow larger
-        if ((uint32_t)getWidth() > mLayer->texture.width
-                || (uint32_t)getHeight() > mLayer->texture.height) {
+        RenderState& renderState = mLayer->renderState;
+        if (properties().fitsOnLayer()) {
+            mLayer = renderState.layerPool().resize(mLayer, getWidth(), getHeight());
+        } else {
 #else
-    } else if (mLayer->layer.getWidth() != getWidth() || mLayer->layer.getHeight() != getHeight()) {
         if (!LayerRenderer::resizeLayer(mLayer, getWidth(), getHeight())) {
 #endif
             destroyLayer(mLayer);
diff --git a/libs/hwui/RenderProperties.h b/libs/hwui/RenderProperties.h
index ca7789e..0bd5b65 100644
--- a/libs/hwui/RenderProperties.h
+++ b/libs/hwui/RenderProperties.h
@@ -608,12 +608,16 @@
                 && getOutline().getAlpha() != 0.0f;
     }
 
-    bool promotedToLayer() const {
+    bool fitsOnLayer() const {
         const DeviceInfo* deviceInfo = DeviceInfo::get();
         LOG_ALWAYS_FATAL_IF(!deviceInfo, "DeviceInfo uninitialized");
+        return mPrimitiveFields.mWidth <= deviceInfo->maxTextureSize()
+                        && mPrimitiveFields.mHeight <= deviceInfo->maxTextureSize();
+    }
+
+    bool promotedToLayer() const {
         return mLayerProperties.mType == LayerType::None
-                && mPrimitiveFields.mWidth <= deviceInfo->maxTextureSize()
-                && mPrimitiveFields.mHeight <= deviceInfo->maxTextureSize()
+                && fitsOnLayer()
                 && (mComputedFields.mNeedLayerForFunctors
                         || (!MathUtils::isZero(mPrimitiveFields.mAlpha)
                                 && mPrimitiveFields.mAlpha < 1
diff --git a/libs/hwui/VectorDrawablePath.cpp b/libs/hwui/VectorDrawablePath.cpp
index 115435c..05ea2da 100644
--- a/libs/hwui/VectorDrawablePath.cpp
+++ b/libs/hwui/VectorDrawablePath.cpp
@@ -37,8 +37,11 @@
 };
 
 VectorDrawablePath::VectorDrawablePath(const char* pathStr, size_t strLength) {
-    PathParser::getPathDataFromString(&mData, pathStr, strLength);
-    verbsToPath(&mSkPath, &mData);
+    PathParser::ParseResult result;
+    PathParser::getPathDataFromString(&mData, &result, pathStr, strLength);
+    if (!result.failureOccurred) {
+        verbsToPath(&mSkPath, &mData);
+    }
 }
 
 VectorDrawablePath::VectorDrawablePath(const PathData& data) {
@@ -80,7 +83,7 @@
     for (unsigned int i = 0; i < data->verbs.size(); i++) {
         size_t verbSize = data->verbSizes[i];
         resolver.addCommand(outPath, previousCommand, data->verbs[i], &data->points, start,
-                start + verbSize - 1u);
+                start + verbSize);
         previousCommand = data->verbs[i];
         start += verbSize;
     }
@@ -254,7 +257,7 @@
     arcToBezier(p, cx, cy, a, b, x0, y0, thetaD, eta0, sweep);
 }
 
-
+// Use the given verb, and points in the range [start, end) to insert a command into the SkPath.
 void PathResolver::addCommand(SkPath* outPath, char previousCmd,
         char cmd, const std::vector<float>* points, size_t start, size_t end) {
 
@@ -305,7 +308,7 @@
         break;
     }
 
-    for (unsigned int k = start; k <= end; k += incr) {
+    for (unsigned int k = start; k < end; k += incr) {
         switch (cmd) {
         case 'm': // moveto - Start a new sub-path (relative)
             currentX += points->at(k + 0);
diff --git a/libs/hwui/microbench/PathParserBench.cpp b/libs/hwui/microbench/PathParserBench.cpp
index 198035e..171078d 100644
--- a/libs/hwui/microbench/PathParserBench.cpp
+++ b/libs/hwui/microbench/PathParserBench.cpp
@@ -28,9 +28,10 @@
     const char* pathString = "M 1 1 m 2 2, l 3 3 L 3 3 H 4 h4 V5 v5, Q6 6 6 6 q 6 6 6 6t 7 7 T 7 7 C 8 8 8 8 8 8 c 8 8 8 8 8 8 S 9 9 9 9 s 9 9 9 9 A 10 10 0 1 1 10 10 a 10 10 0 1 1 10 10";
     SkPath skPath;
     size_t length = strlen(pathString);
+    PathParser::ParseResult result;
     StartBenchmarkTiming();
     for (int i = 0; i < iter; i++) {
-        PathParser::parseStringForSkPath(&skPath, pathString, length);
+        PathParser::parseStringForSkPath(&skPath, &result, pathString, length);
     }
     StopBenchmarkTiming();
 }
diff --git a/libs/hwui/renderstate/OffscreenBufferPool.cpp b/libs/hwui/renderstate/OffscreenBufferPool.cpp
new file mode 100644
index 0000000..6b44557
--- /dev/null
+++ b/libs/hwui/renderstate/OffscreenBufferPool.cpp
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "OffscreenBufferPool.h"
+
+#include "Caches.h"
+#include "Properties.h"
+#include "renderstate/RenderState.h"
+#include "utils/FatVector.h"
+
+#include <utils/Log.h>
+
+#include <GLES2/gl2.h>
+
+namespace android {
+namespace uirenderer {
+
+////////////////////////////////////////////////////////////////////////////////
+// OffscreenBuffer
+////////////////////////////////////////////////////////////////////////////////
+
+OffscreenBuffer::OffscreenBuffer(RenderState& renderState, Caches& caches,
+        uint32_t viewportWidth, uint32_t viewportHeight)
+        : renderState(renderState)
+        , viewportWidth(viewportWidth)
+        , viewportHeight(viewportHeight)
+        , texture(caches) {
+    texture.width = computeIdealDimension(viewportWidth);
+    texture.height = computeIdealDimension(viewportHeight);
+    texture.blend = true;
+
+    caches.textureState().activateTexture(0);
+    glGenTextures(1, &texture.id);
+    caches.textureState().bindTexture(GL_TEXTURE_2D, texture.id);
+
+    texture.setWrap(GL_CLAMP_TO_EDGE, false, false, GL_TEXTURE_2D);
+    // not setting filter on texture, since it's set when drawing, based on transform
+
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture.width, texture.height, 0,
+            GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
+}
+
+void OffscreenBuffer::updateMeshFromRegion() {
+    // avoid T-junctions as they cause artifacts in between the resultant
+    // geometry when complex transforms occur.
+    // TODO: generate the safeRegion only if necessary based on drawing transform
+    Region safeRegion = Region::createTJunctionFreeRegion(region);
+
+    size_t count;
+    const android::Rect* rects = safeRegion.getArray(&count);
+
+    const float texX = 1.0f / float(texture.width);
+    const float texY = 1.0f / float(texture.height);
+
+    FatVector<TextureVertex, 64> meshVector(count * 4); // uses heap if more than 64 vertices needed
+    TextureVertex* mesh = &meshVector[0];
+    for (size_t i = 0; i < count; i++) {
+        const android::Rect* r = &rects[i];
+
+        const float u1 = r->left * texX;
+        const float v1 = (viewportHeight - r->top) * texY;
+        const float u2 = r->right * texX;
+        const float v2 = (viewportHeight - r->bottom) * texY;
+
+        TextureVertex::set(mesh++, r->left, r->top, u1, v1);
+        TextureVertex::set(mesh++, r->right, r->top, u2, v1);
+        TextureVertex::set(mesh++, r->left, r->bottom, u1, v2);
+        TextureVertex::set(mesh++, r->right, r->bottom, u2, v2);
+    }
+    elementCount = count * 6;
+    renderState.meshState().genOrUpdateMeshBuffer(&vbo,
+            sizeof(TextureVertex) * count * 4,
+            &meshVector[0],
+            GL_DYNAMIC_DRAW); // TODO: GL_STATIC_DRAW if savelayer
+}
+
+uint32_t OffscreenBuffer::computeIdealDimension(uint32_t dimension) {
+    return uint32_t(ceilf(dimension / float(LAYER_SIZE)) * LAYER_SIZE);
+}
+
+OffscreenBuffer::~OffscreenBuffer() {
+    texture.deleteTexture();
+    renderState.meshState().deleteMeshBuffer(vbo);
+    elementCount = 0;
+    vbo = 0;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// OffscreenBufferPool
+///////////////////////////////////////////////////////////////////////////////
+
+OffscreenBufferPool::OffscreenBufferPool()
+    : mMaxSize(Properties::layerPoolSize) {
+}
+
+OffscreenBufferPool::~OffscreenBufferPool() {
+    clear(); // TODO: unique_ptr?
+}
+
+int OffscreenBufferPool::Entry::compare(const Entry& lhs, const Entry& rhs) {
+    int deltaInt = int(lhs.width) - int(rhs.width);
+    if (deltaInt != 0) return deltaInt;
+
+    return int(lhs.height) - int(rhs.height);
+}
+
+void OffscreenBufferPool::clear() {
+    for (auto entry : mPool) {
+        delete entry.layer;
+    }
+    mPool.clear();
+    mSize = 0;
+}
+
+OffscreenBuffer* OffscreenBufferPool::get(RenderState& renderState,
+        const uint32_t width, const uint32_t height) {
+    OffscreenBuffer* layer = nullptr;
+
+    Entry entry(width, height);
+    auto iter = mPool.find(entry);
+
+    if (iter != mPool.end()) {
+        entry = *iter;
+        mPool.erase(iter);
+
+        layer = entry.layer;
+        layer->viewportWidth = width;
+        layer->viewportHeight = height;
+        mSize -= layer->getSizeInBytes();
+    } else {
+        layer = new OffscreenBuffer(renderState, Caches::getInstance(), width, height);
+    }
+
+    return layer;
+}
+
+OffscreenBuffer* OffscreenBufferPool::resize(OffscreenBuffer* layer,
+        const uint32_t width, const uint32_t height) {
+    RenderState& renderState = layer->renderState;
+    if (layer->texture.width == OffscreenBuffer::computeIdealDimension(width)
+            && layer->texture.height == OffscreenBuffer::computeIdealDimension(height)) {
+        // resize in place
+        layer->viewportWidth = width;
+        layer->viewportHeight = height;
+        return layer;
+    }
+    putOrDelete(layer);
+    return get(renderState, width, height);
+}
+
+void OffscreenBufferPool::dump() {
+    for (auto entry : mPool) {
+        ALOGD("  Layer size %dx%d", entry.width, entry.height);
+    }
+}
+
+void OffscreenBufferPool::putOrDelete(OffscreenBuffer* layer) {
+    const uint32_t size = layer->getSizeInBytes();
+    // Don't even try to cache a layer that's bigger than the cache
+    if (size < mMaxSize) {
+        // TODO: Use an LRU
+        while (mSize + size > mMaxSize) {
+            OffscreenBuffer* victim = mPool.begin()->layer;
+            mSize -= victim->getSizeInBytes();
+            delete victim;
+            mPool.erase(mPool.begin());
+        }
+
+        // clear region, since it's no longer valid
+        layer->region.clear();
+
+        Entry entry(layer);
+
+        mPool.insert(entry);
+        mSize += size;
+    } else {
+        delete layer;
+    }
+}
+
+}; // namespace uirenderer
+}; // namespace android
diff --git a/libs/hwui/renderstate/OffscreenBufferPool.h b/libs/hwui/renderstate/OffscreenBufferPool.h
new file mode 100644
index 0000000..f0fd82d
--- /dev/null
+++ b/libs/hwui/renderstate/OffscreenBufferPool.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HWUI_OFFSCREEN_BUFFER_POOL_H
+#define ANDROID_HWUI_OFFSCREEN_BUFFER_POOL_H
+
+#include "Caches.h"
+#include "Texture.h"
+#include "utils/Macros.h"
+
+#include <ui/Region.h>
+
+#include <set>
+
+namespace android {
+namespace uirenderer {
+
+class RenderState;
+
+/**
+ * Lightweight alternative to Layer. Owns the persistent state of an offscreen render target, and
+ * encompasses enough information to draw it back on screen (minus paint properties, which are held
+ * by LayerOp).
+ */
+class OffscreenBuffer {
+public:
+    OffscreenBuffer(RenderState& renderState, Caches& caches,
+            uint32_t viewportWidth, uint32_t viewportHeight);
+    ~OffscreenBuffer();
+
+    // must be called prior to rendering, to construct/update vertex buffer
+    void updateMeshFromRegion();
+
+    static uint32_t computeIdealDimension(uint32_t dimension);
+
+    uint32_t getSizeInBytes() { return texture.width * texture.height * 4; }
+
+    RenderState& renderState;
+    uint32_t viewportWidth;
+    uint32_t viewportHeight;
+    Texture texture;
+
+    // Portion of layer that has been drawn to. Used to minimize drawing area when
+    // drawing back to screen / parent FBO.
+    Region region;
+    GLsizei elementCount = 0;
+    GLuint vbo = 0;
+};
+
+/**
+ * Pool of OffscreenBuffers allocated, but not currently in use.
+ */
+class OffscreenBufferPool {
+public:
+    OffscreenBufferPool();
+    ~OffscreenBufferPool();
+
+    WARN_UNUSED_RESULT OffscreenBuffer* get(RenderState& renderState,
+            const uint32_t width, const uint32_t height);
+
+    WARN_UNUSED_RESULT OffscreenBuffer* resize(OffscreenBuffer* layer,
+            const uint32_t width, const uint32_t height);
+
+    void putOrDelete(OffscreenBuffer* layer);
+
+    /**
+     * Clears the pool. This causes all layers to be deleted.
+     */
+    void clear();
+
+    /**
+     * Returns the maximum size of the pool in bytes.
+     */
+    uint32_t getMaxSize() { return mMaxSize; }
+
+    /**
+     * Returns the current size of the pool in bytes.
+     */
+    uint32_t getSize() { return mSize; }
+
+    size_t getCount() { return mPool.size(); }
+
+    /**
+     * Prints out the content of the pool.
+     */
+    void dump();
+private:
+    struct Entry {
+        Entry() {}
+
+        Entry(const uint32_t layerWidth, const uint32_t layerHeight)
+                : width(OffscreenBuffer::computeIdealDimension(layerWidth))
+                , height(OffscreenBuffer::computeIdealDimension(layerHeight)) {}
+
+        Entry(OffscreenBuffer* layer)
+                : layer(layer)
+                , width(layer->texture.width)
+                , height(layer->texture.height) {
+        }
+
+        static int compare(const Entry& lhs, const Entry& rhs);
+
+        bool operator==(const Entry& other) const {
+            return compare(*this, other) == 0;
+        }
+
+        bool operator!=(const Entry& other) const {
+            return compare(*this, other) != 0;
+        }
+
+        bool operator<(const Entry& other) const {
+            return Entry::compare(*this, other) < 0;
+        }
+
+        OffscreenBuffer* layer = nullptr;
+        uint32_t width = 0;
+        uint32_t height = 0;
+    }; // struct Entry
+
+    std::multiset<Entry> mPool;
+
+    uint32_t mSize = 0;
+    uint32_t mMaxSize;
+}; // class OffscreenBufferCache
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_HWUI_OFFSCREEN_BUFFER_POOL_H
diff --git a/libs/hwui/renderstate/RenderState.cpp b/libs/hwui/renderstate/RenderState.cpp
index 9637117..4fa8200 100644
--- a/libs/hwui/renderstate/RenderState.cpp
+++ b/libs/hwui/renderstate/RenderState.cpp
@@ -90,6 +90,8 @@
     }
 */
 
+    mLayerPool.clear();
+
     // TODO: reset all cached state in state objects
     std::for_each(mActiveLayers.begin(), mActiveLayers.end(), layerLostGlContext);
     mAssetAtlas.terminate();
@@ -106,6 +108,19 @@
     mStencil = nullptr;
 }
 
+void RenderState::flush(Caches::FlushMode mode) {
+    switch (mode) {
+        case Caches::FlushMode::Full:
+            // fall through
+        case Caches::FlushMode::Moderate:
+            // fall through
+        case Caches::FlushMode::Layers:
+            mLayerPool.clear();
+            break;
+    }
+    mCaches->flush(mode);
+}
+
 void RenderState::setViewport(GLsizei width, GLsizei height) {
     mViewportWidth = width;
     mViewportHeight = height;
diff --git a/libs/hwui/renderstate/RenderState.h b/libs/hwui/renderstate/RenderState.h
index 3cda170..dcd5ea6 100644
--- a/libs/hwui/renderstate/RenderState.h
+++ b/libs/hwui/renderstate/RenderState.h
@@ -21,6 +21,7 @@
 #include "Glop.h"
 #include "renderstate/Blend.h"
 #include "renderstate/MeshState.h"
+#include "renderstate/OffscreenBufferPool.h"
 #include "renderstate/PixelBufferState.h"
 #include "renderstate/Scissor.h"
 #include "renderstate/Stencil.h"
@@ -56,6 +57,8 @@
     void onGLContextCreated();
     void onGLContextDestroyed();
 
+    void flush(Caches::FlushMode flushMode);
+
     void setViewport(GLsizei width, GLsizei height);
     void getViewport(GLsizei* outWidth, GLsizei* outHeight);
 
@@ -97,6 +100,8 @@
     Scissor& scissor() { return *mScissor; }
     Stencil& stencil() { return *mStencil; }
 
+    OffscreenBufferPool& layerPool() { return mLayerPool; }
+
     void dump();
 
 private:
@@ -116,6 +121,8 @@
     Scissor* mScissor = nullptr;
     Stencil* mStencil = nullptr;
 
+    OffscreenBufferPool mLayerPool;
+
     AssetAtlas mAssetAtlas;
     std::set<Layer*> mActiveLayers;
     std::set<renderthread::CanvasContext*> mRegisteredContexts;
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index 1b89960..f094b2d 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -599,7 +599,7 @@
         // Make sure to release all the textures we were owning as there won't
         // be another draw
         caches.textureCache.resetMarkInUse(this);
-        caches.flush(Caches::FlushMode::Layers);
+        mRenderThread.renderState().flush(Caches::FlushMode::Layers);
     }
 }
 
@@ -609,10 +609,10 @@
 
     ATRACE_CALL();
     if (level >= TRIM_MEMORY_COMPLETE) {
-        Caches::getInstance().flush(Caches::FlushMode::Full);
+        thread.renderState().flush(Caches::FlushMode::Full);
         thread.eglManager().destroy();
     } else if (level >= TRIM_MEMORY_UI_HIDDEN) {
-        Caches::getInstance().flush(Caches::FlushMode::Moderate);
+        thread.renderState().flush(Caches::FlushMode::Moderate);
     }
 }
 
diff --git a/libs/hwui/tests/TreeContentAnimation.cpp b/libs/hwui/tests/TreeContentAnimation.cpp
index 29d9803..81bf9ed 100644
--- a/libs/hwui/tests/TreeContentAnimation.cpp
+++ b/libs/hwui/tests/TreeContentAnimation.cpp
@@ -408,7 +408,7 @@
 public:
     sp<RenderNode> card = TestUtils::createNode<TestCanvas>(0, 0, 200, 200, [] (TestCanvas& canvas) {
         canvas.drawColor(0xFF0000FF, SkXfermode::kSrcOver_Mode);
-    }, true);
+    }, TestUtils::getHwLayerSetupCallback());
     void createContent(int width, int height, TestCanvas* canvas) override {
         canvas->drawColor(0xFFFFFFFF, SkXfermode::kSrcOver_Mode); // background
         canvas->drawRenderNode(card.get());
diff --git a/libs/hwui/unit_tests/BakedOpStateTests.cpp b/libs/hwui/unit_tests/BakedOpStateTests.cpp
index bc1b69f..4e00fb3 100644
--- a/libs/hwui/unit_tests/BakedOpStateTests.cpp
+++ b/libs/hwui/unit_tests/BakedOpStateTests.cpp
@@ -60,24 +60,21 @@
 TEST(BakedOpState, constructAndReject) {
     LinearAllocator allocator;
 
-    Matrix4 identity;
-    identity.loadIdentity();
-
     Matrix4 translate100x0;
     translate100x0.loadTranslate(100, 0, 0);
 
     SkPaint paint;
     {
         RectOp rejectOp(Rect(30, 40, 100, 200), translate100x0, Rect(0, 0, 100, 200), &paint);
-        auto snapshot = TestUtils::makeSnapshot(identity, Rect(0, 0, 100, 200));
+        auto snapshot = TestUtils::makeSnapshot(Matrix4::identity(), Rect(0, 0, 100, 200));
         BakedOpState* bakedOp = BakedOpState::tryConstruct(allocator, *snapshot, rejectOp);
 
         EXPECT_EQ(bakedOp, nullptr); // rejected by clip, so not constructed
         EXPECT_LE(allocator.usedSize(), 8u); // no significant allocation space used for rejected op
     }
     {
-        RectOp successOp(Rect(30, 40, 100, 200), identity, Rect(0, 0, 100, 200), &paint);
-        auto snapshot = TestUtils::makeSnapshot(identity, Rect(0, 0, 100, 200));
+        RectOp successOp(Rect(30, 40, 100, 200), Matrix4::identity(), Rect(0, 0, 100, 200), &paint);
+        auto snapshot = TestUtils::makeSnapshot(Matrix4::identity(), Rect(0, 0, 100, 200));
         BakedOpState* bakedOp = BakedOpState::tryConstruct(allocator, *snapshot, successOp);
 
         EXPECT_NE(bakedOp, nullptr); // NOT rejected by clip, so will be constructed
@@ -85,5 +82,24 @@
     }
 }
 
+TEST(BakedOpState, oplessConstructAndReject) {
+    LinearAllocator allocator;
+    {
+        auto snapshot = TestUtils::makeSnapshot(Matrix4::identity(), Rect(0, 0, 0, 0)); // empty
+        BakedOpState* bakedOp = BakedOpState::tryShadowOpConstruct(allocator, *snapshot, (ShadowOp*)0x1234);
+
+        EXPECT_EQ(bakedOp, nullptr); // rejected by clip, so not constructed
+        EXPECT_LE(allocator.usedSize(), 8u); // no significant allocation space used for rejected op
+    }
+    {
+        auto snapshot = TestUtils::makeSnapshot(Matrix4::identity(), Rect(0, 0, 100, 200));
+        BakedOpState* bakedOp = BakedOpState::tryShadowOpConstruct(allocator, *snapshot, (ShadowOp*)0x1234);
+
+        EXPECT_NE(bakedOp, nullptr); // NOT rejected by clip, so will be constructed
+        EXPECT_GT(allocator.usedSize(), 64u); // relatively large alloc for non-rejected op
+        EXPECT_EQ((ShadowOp*)0x1234, bakedOp->op);
+    }
+}
+
 }
 }
diff --git a/libs/hwui/unit_tests/OffscreenBufferPoolTests.cpp b/libs/hwui/unit_tests/OffscreenBufferPoolTests.cpp
new file mode 100644
index 0000000..ba92157
--- /dev/null
+++ b/libs/hwui/unit_tests/OffscreenBufferPoolTests.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+#include <renderstate/OffscreenBufferPool.h>
+
+#include <unit_tests/TestUtils.h>
+
+using namespace android;
+using namespace android::uirenderer;
+
+TEST(OffscreenBuffer, computeIdealDimension) {
+    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(1));
+    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(31));
+    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(33));
+    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(64));
+    EXPECT_EQ(1024u, OffscreenBuffer::computeIdealDimension(1000));
+}
+
+TEST(OffscreenBuffer, construct) {
+    TestUtils::runOnRenderThread([] (renderthread::RenderThread& thread) {
+        OffscreenBuffer layer(thread.renderState(), Caches::getInstance(), 49u, 149u);
+        EXPECT_EQ(49u, layer.viewportWidth);
+        EXPECT_EQ(149u, layer.viewportHeight);
+
+        EXPECT_EQ(64u, layer.texture.width);
+        EXPECT_EQ(192u, layer.texture.height);
+
+        EXPECT_EQ(64u * 192u * 4u, layer.getSizeInBytes());
+    });
+}
+
+TEST(OffscreenBufferPool, construct) {
+    TestUtils::runOnRenderThread([] (renderthread::RenderThread& thread) {
+        OffscreenBufferPool pool;
+        EXPECT_EQ(0u, pool.getCount()) << "pool must be created empty";
+        EXPECT_EQ(0u, pool.getSize()) << "pool must be created empty";
+        EXPECT_EQ((uint32_t) Properties::layerPoolSize, pool.getMaxSize())
+                << "pool must read size from Properties";
+    });
+
+}
+
+TEST(OffscreenBufferPool, getPutClear) {
+    TestUtils::runOnRenderThread([] (renderthread::RenderThread& thread) {
+        OffscreenBufferPool pool;
+
+        auto layer = pool.get(thread.renderState(), 100u, 200u);
+        EXPECT_EQ(100u, layer->viewportWidth);
+        EXPECT_EQ(200u, layer->viewportHeight);
+
+        ASSERT_LT(layer->getSizeInBytes(), pool.getMaxSize());
+
+        pool.putOrDelete(layer);
+        ASSERT_EQ(layer->getSizeInBytes(), pool.getSize());
+
+        auto layer2 = pool.get(thread.renderState(), 102u, 202u);
+        EXPECT_EQ(layer, layer2) << "layer should be recycled";
+        ASSERT_EQ(0u, pool.getSize()) << "pool should have been emptied by removing only layer";
+
+        pool.putOrDelete(layer);
+        EXPECT_EQ(1u, pool.getCount());
+        pool.clear();
+        EXPECT_EQ(0u, pool.getSize());
+        EXPECT_EQ(0u, pool.getCount());
+    });
+}
+
+TEST(OffscreenBufferPool, resize) {
+    TestUtils::runOnRenderThread([] (renderthread::RenderThread& thread) {
+        OffscreenBufferPool pool;
+
+        auto layer = pool.get(thread.renderState(), 64u, 64u);
+
+        // resize in place
+        ASSERT_EQ(layer, pool.resize(layer, 60u, 55u));
+        EXPECT_EQ(60u, layer->viewportWidth);
+        EXPECT_EQ(55u, layer->viewportHeight);
+        EXPECT_EQ(64u, layer->texture.width);
+        EXPECT_EQ(64u, layer->texture.height);
+
+        // resized to use different object in pool
+        auto layer2 = pool.get(thread.renderState(), 128u, 128u);
+        pool.putOrDelete(layer2);
+        ASSERT_EQ(1u, pool.getCount());
+        ASSERT_EQ(layer2, pool.resize(layer, 120u, 125u));
+        EXPECT_EQ(120u, layer2->viewportWidth);
+        EXPECT_EQ(125u, layer2->viewportHeight);
+        EXPECT_EQ(128u, layer2->texture.width);
+        EXPECT_EQ(128u, layer2->texture.height);
+
+        // original allocation now only thing in pool
+        EXPECT_EQ(1u, pool.getCount());
+        EXPECT_EQ(layer->getSizeInBytes(), pool.getSize());
+    });
+}
+
+TEST(OffscreenBufferPool, putAndDestroy) {
+    TestUtils::runOnRenderThread([] (renderthread::RenderThread& thread) {
+        OffscreenBufferPool pool;
+        // layer too big to return to the pool
+        // Note: this relies on the fact that the pool won't reject based on max texture size
+        auto hugeLayer = pool.get(thread.renderState(), pool.getMaxSize() / 64, 64);
+        EXPECT_GT(hugeLayer->getSizeInBytes(), pool.getMaxSize());
+        pool.putOrDelete(hugeLayer);
+        EXPECT_EQ(0u, pool.getCount()); // failed to put (so was destroyed instead)
+    });
+}
diff --git a/libs/hwui/unit_tests/OpReordererTests.cpp b/libs/hwui/unit_tests/OpReordererTests.cpp
index f67c24a..07080a2 100644
--- a/libs/hwui/unit_tests/OpReordererTests.cpp
+++ b/libs/hwui/unit_tests/OpReordererTests.cpp
@@ -38,17 +38,17 @@
  * and allows Renderer vs Dispatching behavior to be merged.
  *
  * onXXXOp methods fail by default - tests should override ops they expect
- * startLayer fails by default - tests should override if expected
+ * startRepaintLayer fails by default - tests should override if expected
  * startFrame/endFrame do nothing by default - tests should override to intercept
  */
 class TestRendererBase {
 public:
     virtual ~TestRendererBase() {}
-    virtual OffscreenBuffer* createLayer(uint32_t, uint32_t) {
+    virtual OffscreenBuffer* startTemporaryLayer(uint32_t, uint32_t) {
         ADD_FAILURE() << "Layer creation not expected in this test";
         return nullptr;
     }
-    virtual void startLayer(OffscreenBuffer*) {
+    virtual void startRepaintLayer(OffscreenBuffer*) {
         ADD_FAILURE() << "Layer repaint not expected in this test";
     }
     virtual void endLayer() {
@@ -82,27 +82,27 @@
     MAP_OPS(DISPATCHER_METHOD);
 };
 
-
 class FailRenderer : public TestRendererBase {};
 
-class SimpleTestRenderer : public TestRendererBase {
-public:
-    void startFrame(uint32_t width, uint32_t height) override {
-        EXPECT_EQ(0, mIndex++);
-        EXPECT_EQ(100u, width);
-        EXPECT_EQ(200u, height);
-    }
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(1, mIndex++);
-    }
-    void onBitmapOp(const BitmapOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(2, mIndex++);
-    }
-    void endFrame() override {
-        EXPECT_EQ(3, mIndex++);
-    }
-};
 TEST(OpReorderer, simple) {
+    class SimpleTestRenderer : public TestRendererBase {
+    public:
+        void startFrame(uint32_t width, uint32_t height) override {
+            EXPECT_EQ(0, mIndex++);
+            EXPECT_EQ(100u, width);
+            EXPECT_EQ(200u, height);
+        }
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(1, mIndex++);
+        }
+        void onBitmapOp(const BitmapOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(2, mIndex++);
+        }
+        void endFrame() override {
+            EXPECT_EQ(3, mIndex++);
+        }
+    };
+
     auto dl = TestUtils::createDisplayList<RecordingCanvas>(100, 200, [](RecordingCanvas& canvas) {
         SkBitmap bitmap = TestUtils::createSkBitmap(25, 25);
         canvas.drawRect(0, 0, 100, 200, SkPaint());
@@ -115,7 +115,6 @@
     EXPECT_EQ(4, renderer.getIndex()); // 2 ops + start + end
 }
 
-
 TEST(OpReorderer, simpleRejection) {
     auto dl = TestUtils::createDisplayList<RecordingCanvas>(200, 200, [](RecordingCanvas& canvas) {
         canvas.save(SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag);
@@ -129,18 +128,18 @@
     reorderer.replayBakedOps<TestDispatcher>(renderer);
 }
 
-
-static int SIMPLE_BATCHING_LOOPS = 5;
-class SimpleBatchingTestRenderer : public TestRendererBase {
-public:
-    void onBitmapOp(const BitmapOp& op, const BakedOpState& state) override {
-        EXPECT_TRUE(mIndex++ >= SIMPLE_BATCHING_LOOPS);
-    }
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        EXPECT_TRUE(mIndex++ < SIMPLE_BATCHING_LOOPS);
-    }
-};
 TEST(OpReorderer, simpleBatching) {
+    static int SIMPLE_BATCHING_LOOPS = 5;
+    class SimpleBatchingTestRenderer : public TestRendererBase {
+    public:
+        void onBitmapOp(const BitmapOp& op, const BakedOpState& state) override {
+            EXPECT_TRUE(mIndex++ >= SIMPLE_BATCHING_LOOPS);
+        }
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            EXPECT_TRUE(mIndex++ < SIMPLE_BATCHING_LOOPS);
+        }
+    };
+
     auto dl = TestUtils::createDisplayList<RecordingCanvas>(200, 200, [](RecordingCanvas& canvas) {
         SkBitmap bitmap = TestUtils::createSkBitmap(10, 10);
 
@@ -162,24 +161,25 @@
     EXPECT_EQ(2 * SIMPLE_BATCHING_LOOPS, renderer.getIndex()); // 2 x loops ops, because no merging (TODO: force no merging)
 }
 
-class RenderNodeTestRenderer : public TestRendererBase {
-public:
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        switch(mIndex++) {
-        case 0:
-            EXPECT_EQ(Rect(0, 0, 200, 200), state.computedState.clippedBounds);
-            EXPECT_EQ(SK_ColorDKGRAY, op.paint->getColor());
-            break;
-        case 1:
-            EXPECT_EQ(Rect(50, 50, 150, 150), state.computedState.clippedBounds);
-            EXPECT_EQ(SK_ColorWHITE, op.paint->getColor());
-            break;
-        default:
-            ADD_FAILURE();
-        }
-    }
-};
 TEST(OpReorderer, renderNode) {
+    class RenderNodeTestRenderer : public TestRendererBase {
+    public:
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            switch(mIndex++) {
+            case 0:
+                EXPECT_EQ(Rect(0, 0, 200, 200), state.computedState.clippedBounds);
+                EXPECT_EQ(SK_ColorDKGRAY, op.paint->getColor());
+                break;
+            case 1:
+                EXPECT_EQ(Rect(50, 50, 150, 150), state.computedState.clippedBounds);
+                EXPECT_EQ(SK_ColorWHITE, op.paint->getColor());
+                break;
+            default:
+                ADD_FAILURE();
+            }
+        }
+    };
+
     sp<RenderNode> child = TestUtils::createNode<RecordingCanvas>(10, 10, 110, 110, [](RecordingCanvas& canvas) {
         SkPaint paint;
         paint.setColor(SK_ColorWHITE);
@@ -210,16 +210,17 @@
     reorderer.replayBakedOps<TestDispatcher>(renderer);
 }
 
-class ClippedTestRenderer : public TestRendererBase {
-public:
-    void onBitmapOp(const BitmapOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(0, mIndex++);
-        EXPECT_EQ(Rect(10, 20, 30, 40), state.computedState.clippedBounds);
-        EXPECT_EQ(Rect(10, 20, 30, 40), state.computedState.clipRect);
-        EXPECT_TRUE(state.computedState.transform.isIdentity());
-    }
-};
 TEST(OpReorderer, clipped) {
+    class ClippedTestRenderer : public TestRendererBase {
+    public:
+        void onBitmapOp(const BitmapOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(0, mIndex++);
+            EXPECT_EQ(Rect(10, 20, 30, 40), state.computedState.clippedBounds);
+            EXPECT_EQ(Rect(10, 20, 30, 40), state.computedState.clipRect);
+            EXPECT_TRUE(state.computedState.transform.isIdentity());
+        }
+    };
+
     sp<RenderNode> node = TestUtils::createNode<RecordingCanvas>(0, 0, 200, 200, [](RecordingCanvas& canvas) {
         SkBitmap bitmap = TestUtils::createSkBitmap(200, 200);
         canvas.drawBitmap(bitmap, 0, 0, nullptr);
@@ -236,36 +237,36 @@
     reorderer.replayBakedOps<TestDispatcher>(renderer);
 }
 
-
-class SaveLayerSimpleTestRenderer : public TestRendererBase {
-public:
-    OffscreenBuffer* createLayer(uint32_t width, uint32_t height) override {
-        EXPECT_EQ(0, mIndex++);
-        EXPECT_EQ(180u, width);
-        EXPECT_EQ(180u, height);
-        return nullptr;
-    }
-    void endLayer() override {
-        EXPECT_EQ(2, mIndex++);
-    }
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(1, mIndex++);
-        EXPECT_EQ(Rect(10, 10, 190, 190), op.unmappedBounds);
-        EXPECT_EQ(Rect(0, 0, 180, 180), state.computedState.clippedBounds);
-        EXPECT_EQ(Rect(0, 0, 180, 180), state.computedState.clipRect);
-
-        Matrix4 expectedTransform;
-        expectedTransform.loadTranslate(-10, -10, 0);
-        EXPECT_MATRIX_APPROX_EQ(expectedTransform, state.computedState.transform);
-    }
-    void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(3, mIndex++);
-        EXPECT_EQ(Rect(10, 10, 190, 190), state.computedState.clippedBounds);
-        EXPECT_EQ(Rect(0, 0, 200, 200), state.computedState.clipRect);
-        EXPECT_TRUE(state.computedState.transform.isIdentity());
-    }
-};
 TEST(OpReorderer, saveLayerSimple) {
+    class SaveLayerSimpleTestRenderer : public TestRendererBase {
+    public:
+        OffscreenBuffer* startTemporaryLayer(uint32_t width, uint32_t height) override {
+            EXPECT_EQ(0, mIndex++);
+            EXPECT_EQ(180u, width);
+            EXPECT_EQ(180u, height);
+            return nullptr;
+        }
+        void endLayer() override {
+            EXPECT_EQ(2, mIndex++);
+        }
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(1, mIndex++);
+            EXPECT_EQ(Rect(10, 10, 190, 190), op.unmappedBounds);
+            EXPECT_EQ(Rect(0, 0, 180, 180), state.computedState.clippedBounds);
+            EXPECT_EQ(Rect(0, 0, 180, 180), state.computedState.clipRect);
+
+            Matrix4 expectedTransform;
+            expectedTransform.loadTranslate(-10, -10, 0);
+            EXPECT_MATRIX_APPROX_EQ(expectedTransform, state.computedState.transform);
+        }
+        void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(3, mIndex++);
+            EXPECT_EQ(Rect(10, 10, 190, 190), state.computedState.clippedBounds);
+            EXPECT_EQ(Rect(0, 0, 200, 200), state.computedState.clipRect);
+            EXPECT_TRUE(state.computedState.transform.isIdentity());
+        }
+    };
+
     auto dl = TestUtils::createDisplayList<RecordingCanvas>(200, 200, [](RecordingCanvas& canvas) {
         canvas.saveLayerAlpha(10, 10, 190, 190, 128, SkCanvas::kClipToLayer_SaveFlag);
         canvas.drawRect(10, 10, 190, 190, SkPaint());
@@ -279,57 +280,57 @@
     EXPECT_EQ(4, renderer.getIndex());
 }
 
-
-/* saveLayer1 {rect1, saveLayer2 { rect2 } } will play back as:
- * - createLayer2, rect2 endLayer2
- * - createLayer1, rect1, drawLayer2, endLayer1
- * - startFrame, layerOp1, endFrame
- */
-class SaveLayerNestedTestRenderer : public TestRendererBase {
-public:
-    OffscreenBuffer* createLayer(uint32_t width, uint32_t height) override {
-        const int index = mIndex++;
-        if (index == 0) {
-            EXPECT_EQ(400u, width);
-            EXPECT_EQ(400u, height);
-            return (OffscreenBuffer*) 0x400;
-        } else if (index == 3) {
-            EXPECT_EQ(800u, width);
-            EXPECT_EQ(800u, height);
-            return (OffscreenBuffer*) 0x800;
-        } else { ADD_FAILURE(); }
-        return (OffscreenBuffer*) nullptr;
-    }
-    void endLayer() override {
-        int index = mIndex++;
-        EXPECT_TRUE(index == 2 || index == 6);
-    }
-    void startFrame(uint32_t width, uint32_t height) override {
-        EXPECT_EQ(7, mIndex++);
-    }
-    void endFrame() override {
-        EXPECT_EQ(9, mIndex++);
-    }
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        const int index = mIndex++;
-        if (index == 1) {
-            EXPECT_EQ(Rect(0, 0, 400, 400), op.unmappedBounds); // inner rect
-        } else if (index == 4) {
-            EXPECT_EQ(Rect(0, 0, 800, 800), op.unmappedBounds); // outer rect
-        } else { ADD_FAILURE(); }
-    }
-    void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
-        const int index = mIndex++;
-        if (index == 5) {
-            EXPECT_EQ((OffscreenBuffer*)0x400, *op.layerHandle);
-            EXPECT_EQ(Rect(0, 0, 400, 400), op.unmappedBounds); // inner layer
-        } else if (index == 8) {
-            EXPECT_EQ((OffscreenBuffer*)0x800, *op.layerHandle);
-            EXPECT_EQ(Rect(0, 0, 800, 800), op.unmappedBounds); // outer layer
-        } else { ADD_FAILURE(); }
-    }
-};
 TEST(OpReorderer, saveLayerNested) {
+    /* saveLayer1 { rect1, saveLayer2 { rect2 } } will play back as:
+     * - startTemporaryLayer2, rect2 endLayer2
+     * - startTemporaryLayer1, rect1, drawLayer2, endLayer1
+     * - startFrame, layerOp1, endFrame
+     */
+    class SaveLayerNestedTestRenderer : public TestRendererBase {
+    public:
+        OffscreenBuffer* startTemporaryLayer(uint32_t width, uint32_t height) override {
+            const int index = mIndex++;
+            if (index == 0) {
+                EXPECT_EQ(400u, width);
+                EXPECT_EQ(400u, height);
+                return (OffscreenBuffer*) 0x400;
+            } else if (index == 3) {
+                EXPECT_EQ(800u, width);
+                EXPECT_EQ(800u, height);
+                return (OffscreenBuffer*) 0x800;
+            } else { ADD_FAILURE(); }
+            return (OffscreenBuffer*) nullptr;
+        }
+        void endLayer() override {
+            int index = mIndex++;
+            EXPECT_TRUE(index == 2 || index == 6);
+        }
+        void startFrame(uint32_t width, uint32_t height) override {
+            EXPECT_EQ(7, mIndex++);
+        }
+        void endFrame() override {
+            EXPECT_EQ(9, mIndex++);
+        }
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            const int index = mIndex++;
+            if (index == 1) {
+                EXPECT_EQ(Rect(0, 0, 400, 400), op.unmappedBounds); // inner rect
+            } else if (index == 4) {
+                EXPECT_EQ(Rect(0, 0, 800, 800), op.unmappedBounds); // outer rect
+            } else { ADD_FAILURE(); }
+        }
+        void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
+            const int index = mIndex++;
+            if (index == 5) {
+                EXPECT_EQ((OffscreenBuffer*)0x400, *op.layerHandle);
+                EXPECT_EQ(Rect(0, 0, 400, 400), op.unmappedBounds); // inner layer
+            } else if (index == 8) {
+                EXPECT_EQ((OffscreenBuffer*)0x800, *op.layerHandle);
+                EXPECT_EQ(Rect(0, 0, 800, 800), op.unmappedBounds); // outer layer
+            } else { ADD_FAILURE(); }
+        }
+    };
+
     auto dl = TestUtils::createDisplayList<RecordingCanvas>(800, 800, [](RecordingCanvas& canvas) {
         canvas.saveLayerAlpha(0, 0, 800, 800, 128, SkCanvas::kClipToLayer_SaveFlag);
         {
@@ -369,42 +370,41 @@
     reorderer.replayBakedOps<TestDispatcher>(renderer);
 }
 
-class HwLayerSimpleTestRenderer : public TestRendererBase {
-public:
-    void startLayer(OffscreenBuffer* offscreenBuffer) override {
-        EXPECT_EQ(0, mIndex++);
-        EXPECT_EQ(offscreenBuffer, (OffscreenBuffer*) 0x0124);
-    }
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(1, mIndex++);
-
-        EXPECT_TRUE(state.computedState.transform.isIdentity())
-                << "Transform should be reset within layer";
-
-        EXPECT_EQ(state.computedState.clipRect, Rect(25, 25, 75, 75))
-                << "Damage rect should be used to clip layer content";
-    }
-    void endLayer() override {
-        EXPECT_EQ(2, mIndex++);
-    }
-    void startFrame(uint32_t width, uint32_t height) override {
-        EXPECT_EQ(3, mIndex++);
-    }
-    void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(4, mIndex++);
-    }
-    void endFrame() override {
-        EXPECT_EQ(5, mIndex++);
-    }
-};
 TEST(OpReorderer, hwLayerSimple) {
+    class HwLayerSimpleTestRenderer : public TestRendererBase {
+    public:
+        void startRepaintLayer(OffscreenBuffer* offscreenBuffer) override {
+            EXPECT_EQ(0, mIndex++);
+            EXPECT_EQ(offscreenBuffer, (OffscreenBuffer*) 0x0124);
+        }
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(1, mIndex++);
+
+            EXPECT_TRUE(state.computedState.transform.isIdentity())
+                    << "Transform should be reset within layer";
+
+            EXPECT_EQ(state.computedState.clipRect, Rect(25, 25, 75, 75))
+                    << "Damage rect should be used to clip layer content";
+        }
+        void endLayer() override {
+            EXPECT_EQ(2, mIndex++);
+        }
+        void startFrame(uint32_t width, uint32_t height) override {
+            EXPECT_EQ(3, mIndex++);
+        }
+        void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(4, mIndex++);
+        }
+        void endFrame() override {
+            EXPECT_EQ(5, mIndex++);
+        }
+    };
+
     sp<RenderNode> node = TestUtils::createNode<RecordingCanvas>(10, 10, 110, 110, [](RecordingCanvas& canvas) {
         SkPaint paint;
         paint.setColor(SK_ColorWHITE);
         canvas.drawRect(0, 0, 100, 100, paint);
-    });
-    node->mutateStagingProperties().mutateLayerProperties().setType(LayerType::RenderLayer);
-    node->setPropertyFieldsDirty(RenderNode::GENERIC);
+    }, TestUtils::getHwLayerSetupCallback());
     OffscreenBuffer** bufferHandle = node->getLayerHandle();
     *bufferHandle = (OffscreenBuffer*) 0x0124;
 
@@ -427,69 +427,67 @@
     *bufferHandle = nullptr;
 }
 
-
-/* parentLayer { greyRect, saveLayer { childLayer { whiteRect } } } will play back as:
- * - startLayer(child), rect(grey), endLayer
- * - createLayer, drawLayer(child), endLayer
- * - startLayer(parent), rect(white), drawLayer(saveLayer), endLayer
- * - startFrame, drawLayer(parent), endLayerb
- */
-class HwLayerComplexTestRenderer : public TestRendererBase {
-public:
-    OffscreenBuffer* createLayer(uint32_t width, uint32_t height) {
-        EXPECT_EQ(3, mIndex++); // savelayer first
-        return (OffscreenBuffer*)0xabcd;
-    }
-    void startLayer(OffscreenBuffer* offscreenBuffer) override {
-        int index = mIndex++;
-        if (index == 0) {
-            // starting inner layer
-            EXPECT_EQ((OffscreenBuffer*)0x4567, offscreenBuffer);
-        } else if (index == 6) {
-            // starting outer layer
-            EXPECT_EQ((OffscreenBuffer*)0x0123, offscreenBuffer);
-        } else { ADD_FAILURE(); }
-    }
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        int index = mIndex++;
-        if (index == 1) {
-            // inner layer's rect (white)
-            EXPECT_EQ(SK_ColorWHITE, op.paint->getColor());
-        } else if (index == 7) {
-            // outer layer's rect (grey)
-            EXPECT_EQ(SK_ColorDKGRAY, op.paint->getColor());
-        } else { ADD_FAILURE(); }
-    }
-    void endLayer() override {
-        int index = mIndex++;
-        EXPECT_TRUE(index == 2 || index == 5 || index == 9);
-    }
-    void startFrame(uint32_t width, uint32_t height) override {
-        EXPECT_EQ(10, mIndex++);
-    }
-    void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
-        int index = mIndex++;
-        if (index == 4) {
-            EXPECT_EQ((OffscreenBuffer*)0x4567, *op.layerHandle);
-        } else if (index == 8) {
-            EXPECT_EQ((OffscreenBuffer*)0xabcd, *op.layerHandle);
-        } else if (index == 11) {
-            EXPECT_EQ((OffscreenBuffer*)0x0123, *op.layerHandle);
-        } else { ADD_FAILURE(); }
-    }
-    void endFrame() override {
-        EXPECT_EQ(12, mIndex++);
-    }
-};
 TEST(OpReorderer, hwLayerComplex) {
+    /* parentLayer { greyRect, saveLayer { childLayer { whiteRect } } } will play back as:
+     * - startRepaintLayer(child), rect(grey), endLayer
+     * - startTemporaryLayer, drawLayer(child), endLayer
+     * - startRepaintLayer(parent), rect(white), drawLayer(saveLayer), endLayer
+     * - startFrame, drawLayer(parent), endLayerb
+     */
+    class HwLayerComplexTestRenderer : public TestRendererBase {
+    public:
+        OffscreenBuffer* startTemporaryLayer(uint32_t width, uint32_t height) {
+            EXPECT_EQ(3, mIndex++); // savelayer first
+            return (OffscreenBuffer*)0xabcd;
+        }
+        void startRepaintLayer(OffscreenBuffer* offscreenBuffer) override {
+            int index = mIndex++;
+            if (index == 0) {
+                // starting inner layer
+                EXPECT_EQ((OffscreenBuffer*)0x4567, offscreenBuffer);
+            } else if (index == 6) {
+                // starting outer layer
+                EXPECT_EQ((OffscreenBuffer*)0x0123, offscreenBuffer);
+            } else { ADD_FAILURE(); }
+        }
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            int index = mIndex++;
+            if (index == 1) {
+                // inner layer's rect (white)
+                EXPECT_EQ(SK_ColorWHITE, op.paint->getColor());
+            } else if (index == 7) {
+                // outer layer's rect (grey)
+                EXPECT_EQ(SK_ColorDKGRAY, op.paint->getColor());
+            } else { ADD_FAILURE(); }
+        }
+        void endLayer() override {
+            int index = mIndex++;
+            EXPECT_TRUE(index == 2 || index == 5 || index == 9);
+        }
+        void startFrame(uint32_t width, uint32_t height) override {
+            EXPECT_EQ(10, mIndex++);
+        }
+        void onLayerOp(const LayerOp& op, const BakedOpState& state) override {
+            int index = mIndex++;
+            if (index == 4) {
+                EXPECT_EQ((OffscreenBuffer*)0x4567, *op.layerHandle);
+            } else if (index == 8) {
+                EXPECT_EQ((OffscreenBuffer*)0xabcd, *op.layerHandle);
+            } else if (index == 11) {
+                EXPECT_EQ((OffscreenBuffer*)0x0123, *op.layerHandle);
+            } else { ADD_FAILURE(); }
+        }
+        void endFrame() override {
+            EXPECT_EQ(12, mIndex++);
+        }
+    };
+
     auto child = TestUtils::createNode<RecordingCanvas>(50, 50, 150, 150,
             [](RecordingCanvas& canvas) {
         SkPaint paint;
         paint.setColor(SK_ColorWHITE);
         canvas.drawRect(0, 0, 100, 100, paint);
-    });
-    child->mutateStagingProperties().mutateLayerProperties().setType(LayerType::RenderLayer);
-    child->setPropertyFieldsDirty(RenderNode::GENERIC);
+    }, TestUtils::getHwLayerSetupCallback());
     *(child->getLayerHandle()) = (OffscreenBuffer*) 0x4567;
 
     RenderNode* childPtr = child.get();
@@ -502,9 +500,7 @@
         canvas.saveLayerAlpha(50, 50, 150, 150, 128, SkCanvas::kClipToLayer_SaveFlag);
         canvas.drawRenderNode(childPtr);
         canvas.restore();
-    });
-    parent->mutateStagingProperties().mutateLayerProperties().setType(LayerType::RenderLayer);
-    parent->setPropertyFieldsDirty(RenderNode::GENERIC);
+    }, TestUtils::getHwLayerSetupCallback());
     *(parent->getLayerHandle()) = (OffscreenBuffer*) 0x0123;
 
     TestUtils::syncHierarchyPropertiesAndDisplayList(parent);
@@ -527,14 +523,6 @@
     *(parent->getLayerHandle()) = nullptr;
 }
 
-
-class ZReorderTestRenderer : public TestRendererBase {
-public:
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        int expectedOrder = SkColorGetB(op.paint->getColor()); // extract order from blue channel
-        EXPECT_EQ(expectedOrder, mIndex++) << "An op was drawn out of order";
-    }
-};
 static void drawOrderedRect(RecordingCanvas* canvas, uint8_t expectedDrawOrder) {
     SkPaint paint;
     paint.setColor(SkColorSetARGB(256, 0, 0, expectedDrawOrder)); // order put in blue channel
@@ -550,6 +538,14 @@
     canvas->drawRenderNode(node.get()); // canvas takes reference/sole ownership
 }
 TEST(OpReorderer, zReorder) {
+    class ZReorderTestRenderer : public TestRendererBase {
+    public:
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            int expectedOrder = SkColorGetB(op.paint->getColor()); // extract order from blue channel
+            EXPECT_EQ(expectedOrder, mIndex++) << "An op was drawn out of order";
+        }
+    };
+
     auto parent = TestUtils::createNode<RecordingCanvas>(0, 0, 100, 100,
             [](RecordingCanvas& canvas) {
         drawOrderedNode(&canvas, 0, 10.0f); // in reorder=false at this point, so played inorder
@@ -576,27 +572,64 @@
     EXPECT_EQ(10, renderer.getIndex());
 };
 
+TEST(OpReorderer, shadow) {
+    class ShadowTestRenderer : public TestRendererBase {
+    public:
+        void onShadowOp(const ShadowOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(0, mIndex++);
+        }
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(1, mIndex++);
+        }
+    };
 
-class PropertyTestRenderer : public TestRendererBase {
-public:
-    PropertyTestRenderer(std::function<void(const RectOp&, const BakedOpState&)> callback)
-            : mCallback(callback) {}
-    void onRectOp(const RectOp& op, const BakedOpState& state) override {
-        EXPECT_EQ(mIndex++, 0);
-        mCallback(op, state);
-    }
-    std::function<void(const RectOp&, const BakedOpState&)> mCallback;
-};
+    sp<RenderNode> caster = TestUtils::createNode<RecordingCanvas>(0, 0, 100, 100,
+            [](RecordingCanvas& canvas) {
+        SkPaint paint;
+        paint.setColor(SK_ColorWHITE);
+        canvas.drawRect(0, 0, 100, 100, paint);
+    }, [] (RenderProperties& properties) {
+        properties.setTranslationZ(5.0f);
+        properties.mutableOutline().setRoundRect(0, 0, 100, 100, 5, 1.0f);
+        return RenderNode::GENERIC | RenderNode::TRANSLATION_Z;
+    });
+    sp<RenderNode> parent = TestUtils::createNode<RecordingCanvas>(0, 0, 200, 200,
+            [&caster] (RecordingCanvas& canvas) {
+        canvas.insertReorderBarrier(true);
+        canvas.drawRenderNode(caster.get());
+    });
+
+    TestUtils::syncHierarchyPropertiesAndDisplayList(parent);
+
+    std::vector< sp<RenderNode> > nodes;
+    nodes.push_back(parent.get());
+
+    OpReorderer reorderer(sEmptyLayerUpdateQueue, SkRect::MakeWH(200, 200), 200, 200, nodes);
+
+    ShadowTestRenderer renderer;
+    reorderer.replayBakedOps<TestDispatcher>(renderer);
+    EXPECT_EQ(2, renderer.getIndex());
+}
 
 static void testProperty(
-        std::function<int(RenderProperties&)> propSetupCallback,
+        TestUtils::PropSetupCallback propSetupCallback,
         std::function<void(const RectOp&, const BakedOpState&)> opValidateCallback) {
+    class PropertyTestRenderer : public TestRendererBase {
+    public:
+        PropertyTestRenderer(std::function<void(const RectOp&, const BakedOpState&)> callback)
+                : mCallback(callback) {}
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(mIndex++, 0);
+            mCallback(op, state);
+        }
+        std::function<void(const RectOp&, const BakedOpState&)> mCallback;
+    };
+
     auto node = TestUtils::createNode<RecordingCanvas>(0, 0, 100, 100, [](RecordingCanvas& canvas) {
         SkPaint paint;
         paint.setColor(SK_ColorWHITE);
         canvas.drawRect(0, 0, 100, 100, paint);
-    });
-    node->setPropertyFieldsDirty(propSetupCallback(node->mutateStagingProperties()));
+    }, propSetupCallback);
     TestUtils::syncHierarchyPropertiesAndDisplayList(node);
 
     std::vector< sp<RenderNode> > nodes;
diff --git a/libs/hwui/unit_tests/PathParserTests.cpp b/libs/hwui/unit_tests/PathParserTests.cpp
index 244bd6c..c99d7b0 100644
--- a/libs/hwui/unit_tests/PathParserTests.cpp
+++ b/libs/hwui/unit_tests/PathParserTests.cpp
@@ -30,142 +30,204 @@
     const std::function<void(SkPath*)> skPathLamda;
 };
 
-static TestData testData1 {
-    // Path
-    "M2.000000,22.000000l20.000000,0.000000 1e0-2e3z",
+const static TestData sTestDataSet[] = {
+    // TestData with scientific notation -2e3 etc.
     {
-        // Verbs
-        {'M', 'l', 'z'},
-        // Verb sizes
-        {2, 4, 0},
-        // Points
-        {2, 22, 20, 0,  1, -2000},
+        // Path
+        "M2.000000,22.000000l20.000000,0.000000 1e0-2e3z",
+        {
+            // Verbs
+            {'M', 'l', 'z'},
+            // Verb sizes
+            {2, 4, 0},
+            // Points
+            {2, 22, 20, 0,  1, -2000},
+        },
+        [](SkPath* outPath) {
+            outPath->moveTo(2, 22);
+            outPath->rLineTo(20, 0);
+            outPath->rLineTo(1, -2000);
+            outPath->close();
+            outPath->moveTo(2, 22);
+        }
     },
-    [](SkPath* outPath) {
-        outPath->moveTo(2, 22);
-        outPath->rLineTo(20, 0);
-        outPath->rLineTo(1, -2000);
-        outPath->close();
-        outPath->moveTo(2, 22);
+
+    // Comprehensive data, containing all the verbs possible.
+    {
+        // Path
+        "M 1 1 m 2 2, l 3 3 L 3 3 H 4 h4 V5 v5, Q6 6 6 6 q 6 6 6 6t 7 7 T 7 7 C 8 8 8 8 8 8 c 8 8 8 8 8 8 S 9 9 9 9 s 9 9 9 9 A 10 10 0 1 1 10 10 a 10 10 0 1 1 10 10",
+        {
+            // Verbs
+            {'M', 'm', 'l', 'L', 'H', 'h', 'V', 'v', 'Q', 'q', 't', 'T', 'C', 'c', 'S', 's', 'A', 'a'},
+            // VerbSizes
+            {2, 2, 2, 2, 1, 1, 1, 1, 4, 4, 2, 2, 6, 6, 4, 4, 7, 7},
+            // Points
+            {1.0, 1.0, 2.0, 2.0, 3.0, 3.0, 3.0, 3.0, 4.0, 4.0, 5.0, 5.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 7.0, 7.0, 7.0, 7.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, }
+        },
+        [](SkPath* outPath) {
+            outPath->moveTo(1.0, 1.0);
+            outPath->rMoveTo(2.0, 2.0);
+            outPath->rLineTo(3.0, 3.0);
+            outPath->lineTo(3.0, 3.0);
+            outPath->lineTo(4.0, 3.0);
+            outPath->rLineTo(4.0, 0);
+            outPath->lineTo(8.0, 5.0);
+            outPath->rLineTo(0, 5.0);
+            outPath->quadTo(6.0, 6.0, 6.0, 6.0);
+            outPath->rQuadTo(6.0, 6.0, 6.0, 6.0);
+            outPath->rQuadTo(0.0, 0.0, 7.0, 7.0);
+            outPath->quadTo(26.0, 26.0, 7.0, 7.0);
+            outPath->cubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
+            outPath->rCubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
+            outPath->cubicTo(16.0, 16.0, 9.0, 9.0, 9.0, 9.0);
+            outPath->rCubicTo(0.0, 0.0, 9.0, 9.0, 9.0, 9.0);
+            outPath->cubicTo(18.447775037328352, 20.404243860300607, 17.998389141249767, 22.8911717921705, 16.737515350332117, 24.986664170401575);
+            outPath->cubicTo(15.476641559414468, 27.08215654863265, 13.489843598291483, 28.644011882390082, 11.155893964798905, 29.37447073281729);
+            outPath->cubicTo(8.821944331306327, 30.1049295832445, 6.299226382436471, 29.954422532383525, 4.0686829203897235, 28.951642951534332);
+            outPath->cubicTo(1.838139458342976, 27.94886337068514, 0.05113662931485696, 26.161860541657013, -0.9516429515343354, 23.931317079610267);
+            outPath->cubicTo(-1.9544225323835278, 21.70077361756352, -2.1049295832444987, 19.178055668693663, -1.37447073281729, 16.844106035201087);
+            outPath->cubicTo(-0.6440118823900814, 14.51015640170851, 0.9178434513673546, 12.523358440585524, 3.0133358295984305, 11.262484649667876);
+            outPath->cubicTo(5.108828207829506, 10.001610858750228, 7.5957561396993984, 9.552224962671648, 10.000000000000005, 10.0);
+            outPath->cubicTo(10.0, 7.348852265086975, 11.054287646850167, 4.803576729418881, 12.928932188134523, 2.9289321881345254);
+            outPath->cubicTo(14.803576729418879, 1.0542876468501696, 17.348852265086972, 4.870079381441987E-16, 19.999999999999996, 0.0);
+            outPath->cubicTo(22.65114773491302, -4.870079381441987E-16, 25.19642327058112, 1.0542876468501678, 27.071067811865476, 2.9289321881345227);
+            outPath->cubicTo(28.94571235314983, 4.803576729418878, 30.0, 7.348852265086974, 30.0, 9.999999999999998);
+            outPath->cubicTo(30.0, 12.651147734913023, 28.94571235314983, 15.19642327058112, 27.071067811865476, 17.071067811865476);
+            outPath->cubicTo(25.19642327058112, 18.94571235314983, 22.651147734913028, 20.0, 20.000000000000004, 20.0);
+        }
+    },
+
+    // Random long data
+    {
+        // Path
+        "M5.3,13.2c-0.1,0.0 -0.3,0.0 -0.4,-0.1c-0.3,-0.2 -0.4,-0.7 -0.2,-1.0c1.3,-1.9 2.9,-3.4 4.9,-4.5c4.1,-2.2 9.3,-2.2 13.4,0.0c1.9,1.1 3.6,2.5 4.9,4.4c0.2,0.3 0.1,0.8 -0.2,1.0c-0.3,0.2 -0.8,0.1 -1.0,-0.2c-1.2,-1.7 -2.6,-3.0 -4.3,-4.0c-3.7,-2.0 -8.3,-2.0 -12.0,0.0c-1.7,0.9 -3.2,2.3 -4.3,4.0C5.7,13.1 5.5,13.2 5.3,13.2z",
+        {
+            // Verbs
+            {'M', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'C', 'z'},
+            // Verb sizes
+            {2, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 0},
+            // Points
+            {5.3, 13.2, -0.1, 0, -0.3, 0, -0.4, -0.1, -0.3, -0.2, -0.4, -0.7, -0.2, -1, 1.3, -1.9, 2.9, -3.4, 4.9, -4.5, 4.1, -2.2, 9.3, -2.2, 13.4, 0, 1.9, 1.1, 3.6, 2.5, 4.9, 4.4, 0.2, 0.3, 0.1, 0.8, -0.2, 1, -0.3, 0.2, -0.8, 0.1, -1, -0.2, -1.2, -1.7, -2.6, -3, -4.3, -4, -3.7, -2, -8.3, -2, -12, 0, -1.7, 0.9, -3.2, 2.3, -4.3, 4, 5.7, 13.1, 5.5, 13.2, 5.3, 13.2},
+        },
+        [](SkPath* outPath) {
+            outPath->moveTo(5.3, 13.2);
+            outPath->rCubicTo(-0.1, 0.0, -0.3, 0.0, -0.4, -0.1);
+            outPath->rCubicTo(-0.3, -0.2, -0.4, -0.7, -0.2, -1.0);
+            outPath->rCubicTo(1.3, -1.9, 2.9, -3.4, 4.9, -4.5);
+            outPath->rCubicTo(4.1, -2.2, 9.3, -2.2, 13.4, 0.0);
+            outPath->rCubicTo(1.9, 1.1, 3.6, 2.5, 4.9, 4.4);
+            outPath->rCubicTo(0.2, 0.3, 0.1, 0.8, -0.2, 1.0);
+            outPath->rCubicTo(-0.3, 0.2, -0.8, 0.1, -1.0, -0.2);
+            outPath->rCubicTo(-1.2, -1.7, -2.6, -3.0, -4.3, -4.0);
+            outPath->rCubicTo(-3.7, -2.0, -8.3, -2.0, -12.0, 0.0);
+            outPath->rCubicTo(-1.7, 0.9, -3.2, 2.3, -4.3, 4.0);
+            outPath->cubicTo(5.7, 13.1, 5.5, 13.2, 5.3, 13.2);
+            outPath->close();
+            outPath->moveTo(5.3, 13.2);
+        }
+    },
+
+    // Extreme case with numbers and decimal points crunched together
+    {
+        // Path
+        "l0.0.0.5.0.0.5-0.5.0.0-.5z",
+        {
+            // Verbs
+            {'l', 'z'},
+            // Verb sizes
+            {10, 0},
+            // Points
+            {0, 0, 0.5, 0, 0, 0.5, -0.5, 0, 0, -0.5},
+        },
+        [](SkPath* outPath) {
+            outPath->rLineTo(0.0, 0.0);
+            outPath->rLineTo(0.5, 0.0);
+            outPath->rLineTo(0.0, 0.5);
+            outPath->rLineTo(-0.5, 0.0);
+            outPath->rLineTo(0.0, -0.5);
+            outPath->close();
+            outPath->moveTo(0.0, 0.0);
+        }
+    },
+
+    // Empty test data
+    {
+        "",
+        {
+                // Verbs
+                {},
+                {},
+                {},
+        },
+        [](SkPath* outPath) {}
     }
+
 };
 
-static TestData testData2 {
-    // Path
-    "M 1 1 m 2 2, l 3 3 L 3 3 H 4 h4 V5 v5, Q6 6 6 6 q 6 6 6 6t 7 7 T 7 7 C 8 8 8 8 8 8 c 8 8 8 8 8 8 S 9 9 9 9 s 9 9 9 9 A 10 10 0 1 1 10 10 a 10 10 0 1 1 10 10",
-    {
-        // Verbs
-        {'M', 'm', 'l', 'L', 'H', 'h', 'V', 'v', 'Q', 'q', 't', 'T', 'C', 'c', 'S', 's', 'A', 'a'},
-        // VerbSizes
-        {2, 2, 2, 2, 1, 1, 1, 1, 4, 4, 2, 2, 6, 6, 4, 4, 7, 7},
-        // Points
-        {1.0, 1.0, 2.0, 2.0, 3.0, 3.0, 3.0, 3.0, 4.0, 4.0, 5.0, 5.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 6.0, 7.0, 7.0, 7.0, 7.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 9.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, 10.0, 10.0, 0.0, 1.0, 1.0, 10.0, 10.0, }
-    },
-    [](SkPath* outPath) {
-        outPath->moveTo(1.0, 1.0);
-        outPath->rMoveTo(2.0, 2.0);
-        outPath->rLineTo(3.0, 3.0);
-        outPath->lineTo(3.0, 3.0);
-        outPath->lineTo(4.0, 3.0);
-        outPath->rLineTo(4.0, 0);
-        outPath->lineTo(8.0, 5.0);
-        outPath->rLineTo(0, 5.0);
-        outPath->quadTo(6.0, 6.0, 6.0, 6.0);
-        outPath->rQuadTo(6.0, 6.0, 6.0, 6.0);
-        outPath->rQuadTo(0.0, 0.0, 7.0, 7.0);
-        outPath->quadTo(26.0, 26.0, 7.0, 7.0);
-        outPath->cubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
-        outPath->rCubicTo(8.0, 8.0, 8.0, 8.0, 8.0, 8.0);
-        outPath->cubicTo(16.0, 16.0, 9.0, 9.0, 9.0, 9.0);
-        outPath->rCubicTo(0.0, 0.0, 9.0, 9.0, 9.0, 9.0);
-        outPath->cubicTo(18.447775037328352, 20.404243860300607, 17.998389141249767, 22.8911717921705, 16.737515350332117, 24.986664170401575);
-        outPath->cubicTo(15.476641559414468, 27.08215654863265, 13.489843598291483, 28.644011882390082, 11.155893964798905, 29.37447073281729);
-        outPath->cubicTo(8.821944331306327, 30.1049295832445, 6.299226382436471, 29.954422532383525, 4.0686829203897235, 28.951642951534332);
-        outPath->cubicTo(1.838139458342976, 27.94886337068514, 0.05113662931485696, 26.161860541657013, -0.9516429515343354, 23.931317079610267);
-        outPath->cubicTo(-1.9544225323835278, 21.70077361756352, -2.1049295832444987, 19.178055668693663, -1.37447073281729, 16.844106035201087);
-        outPath->cubicTo(-0.6440118823900814, 14.51015640170851, 0.9178434513673546, 12.523358440585524, 3.0133358295984305, 11.262484649667876);
-        outPath->cubicTo(5.108828207829506, 10.001610858750228, 7.5957561396993984, 9.552224962671648, 10.000000000000005, 10.0);
-        outPath->cubicTo(10.0, 7.348852265086975, 11.054287646850167, 4.803576729418881, 12.928932188134523, 2.9289321881345254);
-        outPath->cubicTo(14.803576729418879, 1.0542876468501696, 17.348852265086972, 4.870079381441987E-16, 19.999999999999996, 0.0);
-        outPath->cubicTo(22.65114773491302, -4.870079381441987E-16, 25.19642327058112, 1.0542876468501678, 27.071067811865476, 2.9289321881345227);
-        outPath->cubicTo(28.94571235314983, 4.803576729418878, 30.0, 7.348852265086974, 30.0, 9.999999999999998);
-        outPath->cubicTo(30.0, 12.651147734913023, 28.94571235314983, 15.19642327058112, 27.071067811865476, 17.071067811865476);
-        outPath->cubicTo(25.19642327058112, 18.94571235314983, 22.651147734913028, 20.0, 20.000000000000004, 20.0);
-    }
+struct StringPath {
+    const char* stringPath;
+    bool isValid;
 };
 
-static TestData testData3 {
-    // Path
-    "M5.3,13.2c-0.1,0.0 -0.3,0.0 -0.4,-0.1c-0.3,-0.2 -0.4,-0.7 -0.2,-1.0c1.3,-1.9 2.9,-3.4 4.9,-4.5c4.1,-2.2 9.3,-2.2 13.4,0.0c1.9,1.1 3.6,2.5 4.9,4.4c0.2,0.3 0.1,0.8 -0.2,1.0c-0.3,0.2 -0.8,0.1 -1.0,-0.2c-1.2,-1.7 -2.6,-3.0 -4.3,-4.0c-3.7,-2.0 -8.3,-2.0 -12.0,0.0c-1.7,0.9 -3.2,2.3 -4.3,4.0C5.7,13.1 5.5,13.2 5.3,13.2z",
-    {
-        // Verbs
-        {'M', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'c', 'C', 'z'},
-        // Verb sizes
-        {2, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 0},
-        // Points
-        {5.3, 13.2, -0.1, 0, -0.3, 0, -0.4, -0.1, -0.3, -0.2, -0.4, -0.7, -0.2, -1, 1.3, -1.9, 2.9, -3.4, 4.9, -4.5, 4.1, -2.2, 9.3, -2.2, 13.4, 0, 1.9, 1.1, 3.6, 2.5, 4.9, 4.4, 0.2, 0.3, 0.1, 0.8, -0.2, 1, -0.3, 0.2, -0.8, 0.1, -1, -0.2, -1.2, -1.7, -2.6, -3, -4.3, -4, -3.7, -2, -8.3, -2, -12, 0, -1.7, 0.9, -3.2, 2.3, -4.3, 4, 5.7, 13.1, 5.5, 13.2, 5.3, 13.2},
-    },
-    [](SkPath* outPath) {
-        outPath->moveTo(5.3, 13.2);
-        outPath->rCubicTo(-0.1, 0.0, -0.3, 0.0, -0.4, -0.1);
-        outPath->rCubicTo(-0.3, -0.2, -0.4, -0.7, -0.2, -1.0);
-        outPath->rCubicTo(1.3, -1.9, 2.9, -3.4, 4.9, -4.5);
-        outPath->rCubicTo(4.1, -2.2, 9.3, -2.2, 13.4, 0.0);
-        outPath->rCubicTo(1.9, 1.1, 3.6, 2.5, 4.9, 4.4);
-        outPath->rCubicTo(0.2, 0.3, 0.1, 0.8, -0.2, 1.0);
-        outPath->rCubicTo(-0.3, 0.2, -0.8, 0.1, -1.0, -0.2);
-        outPath->rCubicTo(-1.2, -1.7, -2.6, -3.0, -4.3, -4.0);
-        outPath->rCubicTo(-3.7, -2.0, -8.3, -2.0, -12.0, 0.0);
-        outPath->rCubicTo(-1.7, 0.9, -3.2, 2.3, -4.3, 4.0);
-        outPath->cubicTo(5.7, 13.1, 5.5, 13.2, 5.3, 13.2);
-        outPath->close();
-        outPath->moveTo(5.3, 13.2);
-    }
+const StringPath sStringPaths[] = {
+    {"3e...3", false},
+    {"L.M.F.A.O", false},
+    {"m 1 1", true},
+    {"z", true},
+    {"1-2e34567", false}
 };
 
-static TestData testData4 {
-    // Path
-    "l0.0.0.5.0.0.5-0.5.0.0-.5z",
-    {
-        // Verbs
-        {'l', 'z'},
-        // Verb sizes
-        {10, 0},
-        // Points
-        {0, 0, 0.5, 0, 0, 0.5, -0.5, 0, 0, -0.5},
-    },
-    [](SkPath* outPath) {
-        outPath->rLineTo(0.0, 0.0);
-        outPath->rLineTo(0.5, 0.0);
-        outPath->rLineTo(0.0, 0.5);
-        outPath->rLineTo(-0.5, 0.0);
-        outPath->rLineTo(0.0, -0.5);
-        outPath->close();
-        outPath->moveTo(0.0, 0.0);
-    }
-};
-
-const static TestData testDataSet[] = {testData1, testData2, testData3, testData4};
-
-TEST(PathPaser, parseString) {
-
-    for (int i = 0; i < 4; i++) {
+TEST(PathParser, parseStringForData) {
+    for (TestData testData: sTestDataSet) {
+        PathParser::ParseResult result;
         // Test generated path data against the given data.
         PathData pathData;
-        TestData testData = testDataSet[i];
         size_t length = strlen(testData.pathString);
-        PathParser::getPathDataFromString(&pathData, testData.pathString, length);
-        PathParser::dump(pathData);
+        PathParser::getPathDataFromString(&pathData, &result, testData.pathString, length);
         EXPECT_EQ(testData.pathData, pathData);
+    }
 
-        // Test SkPath generated
+    for (StringPath stringPath : sStringPaths) {
+        PathParser::ParseResult result;
+        PathData pathData;
+        SkPath skPath;
+        PathParser::getPathDataFromString(&pathData, &result,
+                stringPath.stringPath, strlen(stringPath.stringPath));
+        EXPECT_EQ(stringPath.isValid, !result.failureOccurred);
+    }
+}
+
+TEST(PathParser, createSkPathFromPathData) {
+    for (TestData testData: sTestDataSet) {
         SkPath expectedPath;
         testData.skPathLamda(&expectedPath);
         SkPath actualPath;
-        VectorDrawablePath::verbsToPath(&actualPath, &pathData);
+        VectorDrawablePath::verbsToPath(&actualPath, &testData.pathData);
+        EXPECT_EQ(expectedPath, actualPath);
+    }
+}
+
+TEST(PathParser, parseStringForSkPath) {
+    for (TestData testData: sTestDataSet) {
+        PathParser::ParseResult result;
+        size_t length = strlen(testData.pathString);
+        // Check the return value as well as the SkPath generated.
+        SkPath actualPath;
+        PathParser::parseStringForSkPath(&actualPath, &result, testData.pathString, length);
+        bool hasValidData = !result.failureOccurred;
+        EXPECT_EQ(hasValidData, testData.pathData.verbs.size() > 0);
+        SkPath expectedPath;
+        testData.skPathLamda(&expectedPath);
         EXPECT_EQ(expectedPath, actualPath);
     }
 
+    for (StringPath stringPath : sStringPaths) {
+        PathParser::ParseResult result;
+        SkPath skPath;
+        PathParser::parseStringForSkPath(&skPath, &result, stringPath.stringPath,
+                strlen(stringPath.stringPath));
+        EXPECT_EQ(stringPath.isValid, !result.failureOccurred);
+    }
 }
 
 }; // namespace uirenderer
diff --git a/libs/hwui/unit_tests/TestUtils.h b/libs/hwui/unit_tests/TestUtils.h
index 28e0fd8..efa28ae 100644
--- a/libs/hwui/unit_tests/TestUtils.h
+++ b/libs/hwui/unit_tests/TestUtils.h
@@ -97,25 +97,38 @@
         return std::unique_ptr<DisplayList>(canvas.finishRecording());
     }
 
-    static sp<RenderNode> createNode(int left, int top, int right, int bottom, bool onLayer = false) {
+    typedef std::function<int(RenderProperties&)> PropSetupCallback;
+
+    static PropSetupCallback getHwLayerSetupCallback() {
+        static PropSetupCallback sLayerSetupCallback = [] (RenderProperties& properties) {
+            properties.mutateLayerProperties().setType(LayerType::RenderLayer);
+            return RenderNode::GENERIC;
+        };
+        return sLayerSetupCallback;
+    }
+
+    static sp<RenderNode> createNode(int left, int top, int right, int bottom,
+            PropSetupCallback propSetupCallback = nullptr) {
+#if HWUI_NULL_GPU
         // if RenderNodes are being sync'd/used, device info will be needed, since
         // DeviceInfo::maxTextureSize() affects layer property
         DeviceInfo::initialize();
+#endif
 
         sp<RenderNode> node = new RenderNode();
         node->mutateStagingProperties().setLeftTopRightBottom(left, top, right, bottom);
         node->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
-        if (onLayer) {
-            node->mutateStagingProperties().mutateLayerProperties().setType(LayerType::RenderLayer);
-            node->setPropertyFieldsDirty(RenderNode::GENERIC);
+        if (propSetupCallback) {
+            node->setPropertyFieldsDirty(propSetupCallback(node->mutateStagingProperties()));
         }
         return node;
     }
 
     template<class CanvasType>
     static sp<RenderNode> createNode(int left, int top, int right, int bottom,
-            std::function<void(CanvasType& canvas)> canvasCallback, bool onLayer = false) {
-        sp<RenderNode> node = createNode(left, top, right, bottom, onLayer);
+            std::function<void(CanvasType& canvas)> canvasCallback,
+            PropSetupCallback propSetupCallback = nullptr) {
+        sp<RenderNode> node = createNode(left, top, right, bottom, propSetupCallback);
 
         auto&& props = node->stagingProperties(); // staging, since not sync'd yet
         CanvasType canvas(props.getWidth(), props.getHeight());
diff --git a/libs/hwui/utils/Macros.h b/libs/hwui/utils/Macros.h
index 5ca9083..ccf2287 100644
--- a/libs/hwui/utils/Macros.h
+++ b/libs/hwui/utils/Macros.h
@@ -35,4 +35,7 @@
         static_assert(std::is_standard_layout<Type>::value, \
         #Type " must have standard layout")
 
+#define WARN_UNUSED_RESULT \
+    __attribute__((warn_unused_result))
+
 #endif /* MACROS_H */
diff --git a/media/java/android/media/browse/MediaBrowser.java b/media/java/android/media/browse/MediaBrowser.java
index e0a8026..41b8ab2 100644
--- a/media/java/android/media/browse/MediaBrowser.java
+++ b/media/java/android/media/browse/MediaBrowser.java
@@ -44,7 +44,6 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.ref.WeakReference;
-import java.util.Collections;
 import java.util.List;
 
 /**
@@ -519,13 +518,10 @@
                     return;
                 }
 
-                List<MediaItem> data = list.getList();
+                List<MediaItem> data = list == null ? null : list.getList();
                 if (DBG) {
                     Log.d(TAG, "onLoadChildren for " + mServiceComponent + " id=" + parentId);
                 }
-                if (data == null) {
-                    data = Collections.emptyList();
-                }
 
                 // Check that the subscription is still subscribed.
                 final Subscription subscription = mSubscriptions.get(parentId);
@@ -730,10 +726,9 @@
          * Called when the list of children is loaded or updated.
          *
          * @param parentId The media id of the parent media item.
-         * @param children The children which were loaded.
+         * @param children The children which were loaded, or null if the id is invalid.
          */
-        public void onChildrenLoaded(@NonNull String parentId,
-                                     @NonNull List<MediaItem> children) {
+        public void onChildrenLoaded(@NonNull String parentId, List<MediaItem> children) {
         }
 
         /**
diff --git a/media/java/android/service/media/MediaBrowserService.java b/media/java/android/service/media/MediaBrowserService.java
index 1bb99ff..f2c6a6c 100644
--- a/media/java/android/service/media/MediaBrowserService.java
+++ b/media/java/android/service/media/MediaBrowserService.java
@@ -469,10 +469,6 @@
                 = new Result<List<MediaBrowser.MediaItem>>(parentId) {
             @Override
             void onResultSent(List<MediaBrowser.MediaItem> list) {
-                if (list == null) {
-                    throw new IllegalStateException("onLoadChildren sent null list for id "
-                            + parentId);
-                }
                 if (mConnections.get(connection.callbacks.asBinder()) != connection) {
                     if (DBG) {
                         Log.d(TAG, "Not sending onLoadChildren result for connection that has"
@@ -481,7 +477,8 @@
                     return;
                 }
 
-                final ParceledListSlice<MediaBrowser.MediaItem> pls = new ParceledListSlice(list);
+                final ParceledListSlice<MediaBrowser.MediaItem> pls =
+                        list == null ? null : new ParceledListSlice(list);
                 try {
                     connection.callbacks.onLoadChildren(parentId, pls);
                 } catch (RemoteException ex) {
diff --git a/packages/DocumentsUI/src/com/android/documentsui/Events.java b/packages/DocumentsUI/src/com/android/documentsui/Events.java
index 49dae3d..1b5b60de 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/Events.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/Events.java
@@ -117,6 +117,8 @@
         public MotionInputEvent(MotionEvent event, RecyclerView view) {
             mEvent = event;
             mView = view;
+
+            // Consider determining position lazily as an optimization.
             View child = mView.findChildViewUnder(mEvent.getX(), mEvent.getY());
             mPosition = (child != null)
                     ? mView.getChildAdapterPosition(child)
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java
index 9eafcc3..65e1a28 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/MultiSelectManager.java
@@ -41,10 +41,9 @@
 import android.view.MotionEvent;
 import android.view.View;
 
-import com.android.documentsui.Events;
-import com.android.documentsui.R;
 import com.android.documentsui.Events.InputEvent;
 import com.android.documentsui.Events.MotionInputEvent;
+import com.android.documentsui.R;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -88,9 +87,7 @@
      * @param mode Selection mode
      */
     public MultiSelectManager(final RecyclerView recyclerView, int mode) {
-        this(recyclerView.getAdapter(), mode);
-
-        mEnvironment = new RuntimeSelectionEnvironment(recyclerView);
+        this(recyclerView.getAdapter(), new RuntimeSelectionEnvironment(recyclerView), mode);
 
         if (mode == MODE_MULTIPLE) {
             mBandManager = new BandController();
@@ -137,16 +134,15 @@
 
     /**
      * Constructs a new instance with {@code adapter} and {@code helper}.
+     * @param runtimeSelectionEnvironment
      * @hide
      */
     @VisibleForTesting
-    MultiSelectManager(Adapter<?> adapter, int mode) {
-        checkNotNull(adapter, "'adapter' cannot be null.");
-
+    MultiSelectManager(Adapter<?> adapter, SelectionEnvironment environment, int mode) {
+        mAdapter = checkNotNull(adapter, "'adapter' cannot be null.");
+        mEnvironment = checkNotNull(environment, "'environment' cannot be null.");
         mSingleSelect = mode == MODE_SINGLE;
 
-        mAdapter = adapter;
-
         mAdapter.registerAdapterDataObserver(
                 new AdapterDataObserver() {
 
@@ -880,7 +876,7 @@
         void focusItem(int position);
     }
 
-    /** RvFacade implementation backed by good ol' RecyclerView. */
+    /** Recycler view facade implementation backed by good ol' RecyclerView. */
     private static final class RuntimeSelectionEnvironment implements SelectionEnvironment {
 
         private final RecyclerView mView;
@@ -1960,11 +1956,50 @@
             return false;
         }
 
-        int target = RecyclerView.NO_POSITION;
+        // Here we unpack information from the event and pass it to an more
+        // easily tested method....basically eliminating the need to synthesize
+        // events and views and so on in our tests.
+        int position = findTargetPosition(view, keyCode);
+        if (position == RecyclerView.NO_POSITION) {
+            // If there is no valid navigation target, don't handle the keypress.
+            return false;
+        }
+
+        return attemptChangePosition(position, event.isShiftPressed());
+    }
+
+    @VisibleForTesting
+    boolean attemptChangePosition(int targetPosition, boolean isShiftPressed) {
+        // Focus the new file.
+        mEnvironment.focusItem(targetPosition);
+
+        if (isShiftPressed) {
+            if (!hasSelection()) {
+                // If there is no selection, start a selection when the user presses shift-arrow.
+                toggleSelection(targetPosition);
+            } else if (!mSingleSelect) {
+                mRanger.snapSelection(targetPosition);
+                notifySelectionChanged();
+            } else {
+                // We're in single select and have an existing selection.
+                // Our best guess as to what the user would expect is to advance the selection.
+                clearSelection();
+                toggleSelection(targetPosition);
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Returns the adapter position that the key combo is targeted at.
+     */
+    private int findTargetPosition(View view, int keyCode) {
+        int position = RecyclerView.NO_POSITION;
         if (keyCode == KeyEvent.KEYCODE_MOVE_HOME) {
-            target = 0;
+            position = 0;
         } else if (keyCode == KeyEvent.KEYCODE_MOVE_END) {
-            target = mAdapter.getItemCount() - 1;
+            position = mAdapter.getItemCount() - 1;
         } else {
             // Find a navigation target based on the arrow key that the user pressed.  Ignore
             // navigation targets that aren't items in the recycler view.
@@ -1988,30 +2023,10 @@
                 // TargetView can be null, for example, if the user pressed <down> at the bottom of
                 // the list.
                 if (targetView != null) {
-                    target = mEnvironment.getAdapterPositionForChildView(targetView);
+                    position = mEnvironment.getAdapterPositionForChildView(targetView);
                 }
             }
         }
-
-        if (target == RecyclerView.NO_POSITION) {
-            // If there is no valid navigation target, don't handle the keypress.
-            return false;
-        }
-
-        // Focus the new file.
-        mEnvironment.focusItem(target);
-
-        if (event.isShiftPressed()) {
-            if (!hasSelection()) {
-                // If there is no selection, start a selection when the user presses shift-arrow.
-                toggleSelection(mEnvironment.getAdapterPositionForChildView(view));
-            }
-
-            mRanger.snapSelection(target);
-            notifySelectionChanged();
-        }
-
-        return true;
+        return position;
     }
-
 }
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/CopyTest.java b/packages/DocumentsUI/tests/src/com/android/documentsui/CopyTest.java
index 6f1a89b..369ab7d 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/CopyTest.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/CopyTest.java
@@ -32,6 +32,8 @@
 import android.test.MoreAsserts;
 import android.test.ServiceTestCase;
 import android.test.mock.MockContentResolver;
+import android.test.suitebuilder.annotation.MediumTest;
+import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Log;
 
 import com.android.documentsui.model.DocumentInfo;
@@ -52,6 +54,7 @@
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 
+@MediumTest
 public class CopyTest extends ServiceTestCase<CopyService> {
 
     public CopyTest() {
@@ -89,9 +92,6 @@
         super.tearDown();
     }
 
-    /**
-     * Test copying a single file.
-     */
     public void testCopyFile() throws Exception {
         String srcPath = "/test0.txt";
         Uri testFile = mStorage.createFile(SRC_ROOT, srcPath, "text/plain",
@@ -131,9 +131,6 @@
         MoreAsserts.assertEquals("Moved file contents differ", testContent.getBytes(), dstContent);
     }
 
-    /**
-     * Test copying multiple files.
-     */
     public void testCopyMultipleFiles() throws Exception {
         String testContent[] = {
                 "The five boxing wizards jump quickly",
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/FilesActivityUiTest.java b/packages/DocumentsUI/tests/src/com/android/documentsui/FilesActivityUiTest.java
index 9060516..ba91c83 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/FilesActivityUiTest.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/FilesActivityUiTest.java
@@ -31,11 +31,13 @@
 import android.support.test.uiautomator.UiDevice;
 import android.support.test.uiautomator.Until;
 import android.test.InstrumentationTestCase;
+import android.test.suitebuilder.annotation.LargeTest;
 import android.util.Log;
 import android.view.MotionEvent;
 
 import com.android.documentsui.model.RootInfo;
 
+@LargeTest
 public class FilesActivityUiTest extends InstrumentationTestCase {
 
     private static final int TIMEOUT = 5000;
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/DirectoryFragmentModelTest.java b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/DirectoryFragmentModelTest.java
index 746e2117..b250e5d 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/DirectoryFragmentModelTest.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/DirectoryFragmentModelTest.java
@@ -25,6 +25,7 @@
 import android.support.v7.widget.RecyclerView;
 import android.test.AndroidTestCase;
 import android.test.mock.MockContentResolver;
+import android.test.suitebuilder.annotation.SmallTest;
 import android.view.ViewGroup;
 
 import com.android.documentsui.DirectoryResult;
@@ -34,6 +35,7 @@
 
 import java.util.List;
 
+@SmallTest
 public class DirectoryFragmentModelTest extends AndroidTestCase {
 
     private static final int ITEM_COUNT = 5;
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManagerTest.java b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManagerTest.java
index 24f5c9e..b3d45ae 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManagerTest.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManagerTest.java
@@ -18,12 +18,12 @@
 
 import android.support.v7.widget.RecyclerView;
 import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
 import android.util.SparseBooleanArray;
 import android.view.View;
 import android.view.ViewGroup;
 
 import com.android.documentsui.TestInputEvent;
-import com.android.documentsui.dirlist.MultiSelectManager;
 import com.android.documentsui.dirlist.MultiSelectManager.Selection;
 
 import org.mockito.Mockito;
@@ -33,6 +33,7 @@
 import java.util.List;
 import java.util.Set;
 
+@SmallTest
 public class MultiSelectManagerTest extends AndroidTestCase {
 
     private static final List<String> items;
@@ -49,11 +50,13 @@
     private MultiSelectManager mManager;
     private TestAdapter mAdapter;
     private TestCallback mCallback;
+    private TestSelectionEnvironment mEnv;
 
     public void setUp() throws Exception {
         mAdapter = new TestAdapter(items);
         mCallback = new TestCallback();
-        mManager = new MultiSelectManager(mAdapter, MultiSelectManager.MODE_MULTIPLE);
+        mEnv = new TestSelectionEnvironment();
+        mManager = new MultiSelectManager(mAdapter, mEnv, MultiSelectManager.MODE_MULTIPLE);
         mManager.addCallback(mCallback);
     }
 
@@ -162,7 +165,6 @@
         assertRangeSelection(14, 17);
     }
 
-
     public void testSingleTapUp_ShiftReversesSelectionDirection() {
         longPress(7);
         shiftTap(17);
@@ -171,7 +173,7 @@
     }
 
     public void testSingleSelectMode() {
-        mManager = new MultiSelectManager(mAdapter, MultiSelectManager.MODE_SINGLE);
+        mManager = new MultiSelectManager(mAdapter, mEnv, MultiSelectManager.MODE_SINGLE);
         mManager.addCallback(mCallback);
         longPress(20);
         tap(13);
@@ -179,13 +181,21 @@
     }
 
     public void testSingleSelectMode_ShiftTap() {
-        mManager = new MultiSelectManager(mAdapter, MultiSelectManager.MODE_SINGLE);
+        mManager = new MultiSelectManager(mAdapter, mEnv, MultiSelectManager.MODE_SINGLE);
         mManager.addCallback(mCallback);
         longPress(13);
         shiftTap(20);
         assertSelection(20);
     }
 
+    public void testSingleSelectMode_ShiftDoesNotExtendSelection() {
+        mManager = new MultiSelectManager(mAdapter, mEnv, MultiSelectManager.MODE_SINGLE);
+        mManager.addCallback(mCallback);
+        longPress(20);
+        keyToPosition(22, true);
+        assertSelection(22);
+    }
+
     public void testProvisionalSelection() {
         Selection s = mManager.getSelection();
         assertSelection();
@@ -235,6 +245,10 @@
         mManager.onSingleTapUp(TestInputEvent.shiftClick(position));
     }
 
+    private void keyToPosition(int position, boolean shift) {
+        mManager.attemptChangePosition(position, shift);
+    }
+
     private void assertSelected(int... expected) {
         for (int i = 0; i < expected.length; i++) {
             Selection selection = mManager.getSelection();
@@ -290,11 +304,8 @@
 
     private static final class TestHolder extends RecyclerView.ViewHolder {
         // each data item is just a string in this case
-        public View view;
-        public String string;
         public TestHolder(View view) {
             super(view);
-            this.view = view;
         }
     }
 
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_GridModelTest.java b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_GridModelTest.java
index c4b6ce5..c856b22 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_GridModelTest.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_GridModelTest.java
@@ -20,11 +20,13 @@
 import android.graphics.Rect;
 import android.support.v7.widget.RecyclerView.OnScrollListener;
 import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
 import android.util.SparseBooleanArray;
 import android.view.View;
 
 import com.android.documentsui.dirlist.MultiSelectManager.GridModel;
 
+@SmallTest
 public class MultiSelectManager_GridModelTest extends AndroidTestCase {
 
     private static final int VIEW_PADDING_PX = 5;
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_SelectionTest.java b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_SelectionTest.java
index 64da750..72fc108 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_SelectionTest.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/MultiSelectManager_SelectionTest.java
@@ -17,10 +17,11 @@
 package com.android.documentsui.dirlist;
 
 import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
 
 import com.android.documentsui.dirlist.MultiSelectManager.Selection;
 
-
+@SmallTest
 public class MultiSelectManager_SelectionTest extends AndroidTestCase{
 
     private Selection selection;
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/TestSelectionEnvironment.java b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/TestSelectionEnvironment.java
new file mode 100644
index 0000000..b4324a8
--- /dev/null
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/dirlist/TestSelectionEnvironment.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.documentsui.dirlist;
+
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.support.v7.widget.RecyclerView.OnScrollListener;
+import android.view.View;
+
+import com.android.documentsui.dirlist.MultiSelectManager.SelectionEnvironment;
+
+public class TestSelectionEnvironment implements SelectionEnvironment {
+
+    @Override
+    public void showBand(Rect rect) {
+    }
+
+    @Override
+    public void hideBand() {
+    }
+
+    @Override
+    public void addOnScrollListener(OnScrollListener listener) {
+    }
+
+    @Override
+    public void removeOnScrollListener(OnScrollListener listener) {
+    }
+
+    @Override
+    public void scrollBy(int dy) {
+    }
+
+    @Override
+    public int getHeight() {
+        return 0;
+    }
+
+    @Override
+    public void invalidateView() {
+    }
+
+    @Override
+    public void runAtNextFrame(Runnable r) {
+    }
+
+    @Override
+    public void removeCallback(Runnable r) {
+    }
+
+    @Override
+    public Point createAbsolutePoint(Point relativePoint) {
+        return null;
+    }
+
+    @Override
+    public Rect getAbsoluteRectForChildViewAt(int index) {
+        return null;
+    }
+
+    @Override
+    public int getAdapterPositionAt(int index) {
+        return 0;
+    }
+
+    @Override
+    public int getAdapterPositionForChildView(View view) {
+        return 0;
+    }
+
+    @Override
+    public int getColumnCount() {
+        return 0;
+    }
+
+    @Override
+    public int getRowCount() {
+        return 0;
+    }
+
+    @Override
+    public int getChildCount() {
+        return 0;
+    }
+
+    @Override
+    public int getVisibleChildCount() {
+        return 0;
+    }
+
+    @Override
+    public void focusItem(int position) {
+    }
+}
diff --git a/packages/Keyguard/res/values-ja/strings.xml b/packages/Keyguard/res/values-ja/strings.xml
index cea4319..3230beb 100644
--- a/packages/Keyguard/res/values-ja/strings.xml
+++ b/packages/Keyguard/res/values-ja/strings.xml
@@ -110,8 +110,8 @@
     <string name="keyguard_carrier_default" msgid="8700650403054042153">"通信サービスはありません。"</string>
     <string name="accessibility_ime_switch_button" msgid="5032926134740456424">"入力方法の切り替えボタン。"</string>
     <string name="airplane_mode" msgid="3122107900897202805">"機内モード"</string>
-    <string name="kg_prompt_reason_restart_pattern" msgid="489430505491862444">"端末を再起動するにはパターンが必要です。"</string>
-    <string name="kg_prompt_reason_restart_pin" msgid="994878216570694974">"端末を再起動するにはPINが必要です。"</string>
+    <string name="kg_prompt_reason_restart_pattern" msgid="489430505491862444">"端末を再起動した時にはパターンが必要です。"</string>
+    <string name="kg_prompt_reason_restart_pin" msgid="994878216570694974">"端末を再起動した時にはPINが必要です。"</string>
     <string name="kg_prompt_reason_restart_password" msgid="2375742919528461664">"端末を再起動した時にはパスワードが必要です。"</string>
     <string name="kg_prompt_reason_timeout_pattern" msgid="8930047492617900785">"セキュリティを強化するため、パターンが必要です。"</string>
     <string name="kg_prompt_reason_timeout_pin" msgid="7470468607947726377">"セキュリティを強化するため、PINが必要です。"</string>
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardStatusView.java b/packages/Keyguard/src/com/android/keyguard/KeyguardStatusView.java
index f95b0ae..9d1df26 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardStatusView.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardStatusView.java
@@ -18,7 +18,6 @@
 
 import android.app.ActivityManager;
 import android.app.AlarmManager;
-import android.content.ContentResolver;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -198,12 +197,18 @@
     }
 
     private String getOwnerInfo() {
-        ContentResolver res = getContext().getContentResolver();
         String info = null;
-        final boolean ownerInfoEnabled = mLockPatternUtils.isOwnerInfoEnabled(
-                KeyguardUpdateMonitor.getCurrentUser());
-        if (ownerInfoEnabled) {
-            info = mLockPatternUtils.getOwnerInfo(KeyguardUpdateMonitor.getCurrentUser());
+        if (mLockPatternUtils.isDeviceOwnerInfoEnabled()) {
+            // Use the device owner information set by device policy client via
+            // device policy manager.
+            info = mLockPatternUtils.getDeviceOwnerInfo();
+        } else {
+            // Use the current user owner information if enabled.
+            final boolean ownerInfoEnabled = mLockPatternUtils.isOwnerInfoEnabled(
+                    KeyguardUpdateMonitor.getCurrentUser());
+            if (ownerInfoEnabled) {
+                info = mLockPatternUtils.getOwnerInfo(KeyguardUpdateMonitor.getCurrentUser());
+            }
         }
         return info;
     }
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabase.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabase.java
index 0f31e2c..3151ccb 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabase.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabase.java
@@ -16,22 +16,20 @@
 
 package com.android.mtp;
 
+import static com.android.mtp.MtpDatabaseConstants.*;
+
 import android.content.ContentValues;
 import android.content.Context;
 import android.content.res.Resources;
 import android.database.Cursor;
-import android.database.DatabaseUtils;
-import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteOpenHelper;
-import android.database.sqlite.SQLiteQueryBuilder;
 import android.mtp.MtpObjectInfo;
 import android.provider.DocumentsContract.Document;
 import android.provider.DocumentsContract.Root;
-import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
 
-import java.util.Objects;
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * Database for MTP objects.
@@ -46,188 +44,137 @@
  * remembers the map of document ID and object handle, and remaps new object handle with document ID
  * by comparing the directory structure and object name.
  *
+ * To start putting documents into the database, the client needs to call
+ * {@link #startAddingChildDocuments(String)} with the parent document ID. Also it needs to call
+ * {@link #stopAddingChildDocuments(String)} after putting all child documents to the database.
+ * (All explanations are same for root documents)
+ *
+ * database.startAddingChildDocuments();
+ * database.putChildDocuments();
+ * database.stopAddingChildDocuments();
+ *
+ * To update the existing documents, the client code can repeat to call the three methods again.
+ * The newly added rows update corresponding existing rows that have same MTP identifier like
+ * objectHandle.
+ *
+ * The client can call putChildDocuments multiple times to add documents by chunk, but it needs to
+ * put all documents under the parent before calling stopAddingChildDocuments. Otherwise missing
+ * documents are regarded as deleted, and will be removed from the database.
+ *
+ * If the client calls clearMtpIdentifier(), it clears MTP identifier in the database. In this case,
+ * the database tries to find corresponding rows by using document's name instead of MTP identifier
+ * at the next update cycle.
+ *
  * TODO: Remove @VisibleForTesting annotation when we start to use this class.
  * TODO: Improve performance by SQL optimization.
  */
 @VisibleForTesting
 class MtpDatabase {
-    private static final int VERSION = 1;
-    private static final String NAME = "mtp";
+    private final MtpDatabaseInternal mDatabase;
 
     /**
-     * Table representing documents including root documents.
+     * Mapping mode for roots/documents where we start adding child documents.
+     * Methods operate the state needs to be synchronized.
      */
-    private static final String TABLE_DOCUMENTS = "Documents";
-
-    /**
-     * Table containing additional information only available for root documents.
-     * The table uses same primary keys with corresponding documents.
-     */
-    private static final String TABLE_ROOT_EXTRA = "RootExtra";
-
-    /**
-     * View to join Documents and RootExtra tables to provide roots information.
-     */
-    private static final String VIEW_ROOTS = "Roots";
-
-    static final String COLUMN_DEVICE_ID = "device_id";
-    static final String COLUMN_STORAGE_ID = "storage_id";
-    static final String COLUMN_OBJECT_HANDLE = "object_handle";
-    static final String COLUMN_PARENT_DOCUMENT_ID = "parent_document_id";
-    static final String COLUMN_ROW_STATE = "row_state";
-
-    /**
-     * The state represents that the row has a valid object handle.
-     */
-    static final int ROW_STATE_MAPPED = 0;
-
-    /**
-     * The state represents that the object handle was cleared because the MTP session closed.
-     * External application can still fetch the unmapped documents. If the external application
-     * tries to open an unmapped document, the provider resolves the document with new object handle
-     * ahead.
-     */
-    static final int ROW_STATE_UNMAPPED = 1;
-
-    /**
-     * The state represents the raw has a valid object handle but it may be going to be merged into
-     * another unmapped row. After fetching all documents under the parent, the database tries to
-     * map the mapping document and the unmapped document in order to keep old document ID alive.
-     */
-    static final int ROW_STATE_MAPPING = 2;
-
-    private static final String SELECTION_DOCUMENT_ID = Document.COLUMN_DOCUMENT_ID + " = ?";
-    private static final String SELECTION_ROOT_ID = Root.COLUMN_ROOT_ID + " = ?";
-    private static final String SELECTION_ROOT_DOCUMENTS =
-            COLUMN_DEVICE_ID + " = ? AND " + COLUMN_PARENT_DOCUMENT_ID + " IS NULL";
-    private static final String SELECTION_CHILD_DOCUMENTS = COLUMN_PARENT_DOCUMENT_ID + " = ?";
-
-    static class ParentNotFoundException extends Exception {}
-
-    private static class OpenHelper extends SQLiteOpenHelper {
-        private static final String QUERY_CREATE_DOCUMENTS =
-                "CREATE TABLE " + TABLE_DOCUMENTS + " (" +
-                Document.COLUMN_DOCUMENT_ID +
-                    " INTEGER PRIMARY KEY AUTOINCREMENT," +
-                COLUMN_DEVICE_ID + " INTEGER NOT NULL," +
-                COLUMN_STORAGE_ID + " INTEGER," +
-                COLUMN_OBJECT_HANDLE + " INTEGER," +
-                COLUMN_PARENT_DOCUMENT_ID + " INTEGER," +
-                COLUMN_ROW_STATE + " INTEGER NOT NULL," +
-                Document.COLUMN_MIME_TYPE + " TEXT," +
-                Document.COLUMN_DISPLAY_NAME + " TEXT NOT NULL," +
-                Document.COLUMN_SUMMARY + " TEXT," +
-                Document.COLUMN_LAST_MODIFIED + " INTEGER," +
-                Document.COLUMN_ICON + " INTEGER," +
-                Document.COLUMN_FLAGS + " INTEGER NOT NULL," +
-                Document.COLUMN_SIZE + " INTEGER NOT NULL);";
-
-        private static final String QUERY_CREATE_ROOT_EXTRA =
-                "CREATE TABLE " + TABLE_ROOT_EXTRA + " (" +
-                Root.COLUMN_ROOT_ID + " INTEGER PRIMARY KEY," +
-                Root.COLUMN_FLAGS + " INTEGER NOT NULL," +
-                Root.COLUMN_AVAILABLE_BYTES + " INTEGER NOT NULL," +
-                Root.COLUMN_CAPACITY_BYTES + " INTEGER NOT NULL," +
-                Root.COLUMN_MIME_TYPES + " TEXT NOT NULL);";
-
-        /**
-         * Creates a view to join Documents table and RootExtra table on their primary keys to
-         * provide DocumentContract.Root equivalent information.
-         */
-        private static final String QUERY_CREATE_VIEW_ROOTS =
-                "CREATE VIEW " + VIEW_ROOTS + " AS SELECT " +
-                        TABLE_DOCUMENTS + "." + Document.COLUMN_DOCUMENT_ID + " AS " +
-                                Root.COLUMN_ROOT_ID + "," +
-                        TABLE_ROOT_EXTRA + "." + Root.COLUMN_FLAGS + "," +
-                        TABLE_DOCUMENTS + "." + Document.COLUMN_ICON + " AS " +
-                                Root.COLUMN_ICON + "," +
-                        TABLE_DOCUMENTS + "." + Document.COLUMN_DISPLAY_NAME + " AS " +
-                                Root.COLUMN_TITLE + "," +
-                        TABLE_DOCUMENTS + "." + Document.COLUMN_SUMMARY + " AS " +
-                                Root.COLUMN_SUMMARY + "," +
-                        TABLE_DOCUMENTS + "." + Document.COLUMN_DOCUMENT_ID + " AS " +
-                        Root.COLUMN_DOCUMENT_ID + "," +
-                        TABLE_ROOT_EXTRA + "." + Root.COLUMN_AVAILABLE_BYTES + "," +
-                        TABLE_ROOT_EXTRA + "." + Root.COLUMN_CAPACITY_BYTES + "," +
-                        TABLE_ROOT_EXTRA + "." + Root.COLUMN_MIME_TYPES + "," +
-                        TABLE_DOCUMENTS + "." + COLUMN_ROW_STATE +
-                " FROM " + TABLE_DOCUMENTS + " INNER JOIN " + TABLE_ROOT_EXTRA +
-                " ON " +
-                        COLUMN_PARENT_DOCUMENT_ID + " IS NULL AND " +
-                        TABLE_DOCUMENTS + "." + Document.COLUMN_DOCUMENT_ID +
-                        "=" +
-                        TABLE_ROOT_EXTRA + "." + Root.COLUMN_ROOT_ID;
-
-        public OpenHelper(Context context) {
-            super(context, NAME, null, VERSION);
-        }
-
-        @Override
-        public void onCreate(SQLiteDatabase db) {
-            db.execSQL(QUERY_CREATE_DOCUMENTS);
-            db.execSQL(QUERY_CREATE_ROOT_EXTRA);
-            db.execSQL(QUERY_CREATE_VIEW_ROOTS);
-        }
-
-        @Override
-        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
-            throw new UnsupportedOperationException();
-        }
-    }
-
-    private final SQLiteDatabase mDatabase;
+    private final Map<String, Integer> mMappingMode = new HashMap<>();
 
     @VisibleForTesting
     MtpDatabase(Context context) {
-        final OpenHelper helper = new OpenHelper(context);
-        mDatabase = helper.getWritableDatabase();
+        mDatabase = new MtpDatabaseInternal(context);
     }
 
+    /**
+     * Closes the database.
+     */
     @VisibleForTesting
-    static void deleteDatabase(Context context) {
-        SQLiteDatabase.deleteDatabase(context.getDatabasePath(NAME));
+    void close() {
+        mDatabase.close();
     }
 
-    @VisibleForTesting
+    /**
+     * {@link MtpDatabaseInternal#queryRoots}
+     */
     Cursor queryRoots(String[] columnNames) {
-        return mDatabase.query(
-                VIEW_ROOTS,
-                columnNames,
-                COLUMN_ROW_STATE + " IN (?, ?)",
-                strings(ROW_STATE_MAPPED, ROW_STATE_UNMAPPED),
-                null,
-                null,
-                null);
+        return mDatabase.queryRoots(columnNames);
     }
 
+    /**
+     * {@link MtpDatabaseInternal#queryRootDocuments}
+     */
     @VisibleForTesting
     Cursor queryRootDocuments(String[] columnNames) {
-        return mDatabase.query(
-                TABLE_DOCUMENTS,
-                columnNames,
-                COLUMN_ROW_STATE + " IN (?, ?)",
-                strings(ROW_STATE_MAPPED, ROW_STATE_UNMAPPED),
-                null,
-                null,
-                null);
+        return mDatabase.queryRootDocuments(columnNames);
     }
 
+    /**
+     * {@link MtpDatabaseInternal#queryChildDocuments}
+     */
     @VisibleForTesting
     Cursor queryChildDocuments(String[] columnNames, String parentDocumentId) {
-        return mDatabase.query(
-                TABLE_DOCUMENTS,
-                columnNames,
-                COLUMN_ROW_STATE + " IN (?, ?) AND " + COLUMN_PARENT_DOCUMENT_ID + " = ?",
-                strings(ROW_STATE_MAPPED, ROW_STATE_UNMAPPED, parentDocumentId),
-                null,
-                null,
-                null);
+        return mDatabase.queryChildDocuments(columnNames, parentDocumentId);
     }
 
+    /**
+     * {@link MtpDatabaseInternal#removeDeviceRows}
+     */
+    void removeDeviceRows(int deviceId) {
+        mDatabase.removeDeviceRows(deviceId);
+    }
+
+    /**
+     * Invokes {@link MtpDatabaseInternal#startAddingDocuments} for root documents.
+     * @param deviceId Device ID.
+     */
+    synchronized void startAddingRootDocuments(int deviceId) {
+        final String mappingStateKey = getRootDocumentsMappingStateKey(deviceId);
+        if (mMappingMode.containsKey(mappingStateKey)) {
+            throw new Error("Mapping for the root has already started.");
+        }
+        mMappingMode.put(
+                mappingStateKey,
+                mDatabase.startAddingDocuments(
+                        SELECTION_ROOT_DOCUMENTS, Integer.toString(deviceId)));
+    }
+
+    /**
+     * Invokes {@link MtpDatabaseInternal#startAddingDocuments} for child of specific documents.
+     * @param parentDocumentId Document ID for parent document.
+     */
     @VisibleForTesting
-    void putRootDocuments(int deviceId, Resources resources, MtpRoot[] roots) {
+    synchronized void startAddingChildDocuments(String parentDocumentId) {
+        final String mappingStateKey = getChildDocumentsMappingStateKey(parentDocumentId);
+        if (mMappingMode.containsKey(mappingStateKey)) {
+            throw new Error("Mapping for the root has already started.");
+        }
+        mMappingMode.put(
+                mappingStateKey,
+                mDatabase.startAddingDocuments(SELECTION_CHILD_DOCUMENTS, parentDocumentId));
+    }
+
+    /**
+     * Puts root information to database.
+     * @param deviceId Device ID
+     * @param resources Resources required to localize root name.
+     * @param roots List of root information.
+     * @return If roots are added or removed from the database.
+     */
+    synchronized boolean putRootDocuments(int deviceId, Resources resources, MtpRoot[] roots) {
         mDatabase.beginTransaction();
         try {
+            final boolean heuristic;
+            final String mapColumn;
+            switch (mMappingMode.get(getRootDocumentsMappingStateKey(deviceId))) {
+                case MAP_BY_MTP_IDENTIFIER:
+                    heuristic = false;
+                    mapColumn = COLUMN_STORAGE_ID;
+                    break;
+                case MAP_BY_NAME:
+                    heuristic = true;
+                    mapColumn = Document.COLUMN_DISPLAY_NAME;
+                    break;
+                default:
+                    throw new Error("Unexpected map mode.");
+            }
             final ContentValues[] valuesList = new ContentValues[roots.length];
             for (int i = 0; i < roots.length; i++) {
                 if (roots[i].mDeviceId != deviceId) {
@@ -236,200 +183,123 @@
                 valuesList[i] = new ContentValues();
                 getRootDocumentValues(valuesList[i], resources, roots[i]);
             }
-            final long[] documentIds =
-                    putDocuments(valuesList, SELECTION_ROOT_DOCUMENTS, Integer.toString(deviceId));
+            final boolean changed = mDatabase.putDocuments(
+                    valuesList,
+                    SELECTION_ROOT_DOCUMENTS,
+                    Integer.toString(deviceId),
+                    heuristic,
+                    mapColumn);
             final ContentValues values = new ContentValues();
             int i = 0;
             for (final MtpRoot root : roots) {
                 // Use the same value for the root ID and the corresponding document ID.
-                values.put(Root.COLUMN_ROOT_ID, documentIds[i++]);
-                values.put(Root.COLUMN_FLAGS,
-                        Root.FLAG_SUPPORTS_IS_CHILD |
-                        Root.FLAG_SUPPORTS_CREATE);
+                values.put(
+                        Root.COLUMN_ROOT_ID,
+                        valuesList[i++].getAsString(Document.COLUMN_DOCUMENT_ID));
+                values.put(
+                        Root.COLUMN_FLAGS,
+                        Root.FLAG_SUPPORTS_IS_CHILD | Root.FLAG_SUPPORTS_CREATE);
                 values.put(Root.COLUMN_AVAILABLE_BYTES, root.mFreeSpace);
                 values.put(Root.COLUMN_CAPACITY_BYTES, root.mMaxCapacity);
                 values.put(Root.COLUMN_MIME_TYPES, "");
-                mDatabase.insert(TABLE_ROOT_EXTRA, null, values);
+                mDatabase.putRootExtra(values);
             }
             mDatabase.setTransactionSuccessful();
+            return changed;
         } finally {
             mDatabase.endTransaction();
         }
     }
 
+    /**
+     * Puts document information to database.
+     * @param deviceId Device ID
+     * @param parentId Parent document ID.
+     * @param documents List of document information.
+     */
     @VisibleForTesting
-    void putChildDocuments(int deviceId, String parentId, MtpObjectInfo[] documents) {
+    synchronized void putChildDocuments(int deviceId, String parentId, MtpObjectInfo[] documents) {
+        final boolean heuristic;
+        final String mapColumn;
+        switch (mMappingMode.get(getChildDocumentsMappingStateKey(parentId))) {
+            case MAP_BY_MTP_IDENTIFIER:
+                heuristic = false;
+                mapColumn = COLUMN_OBJECT_HANDLE;
+                break;
+            case MAP_BY_NAME:
+                heuristic = true;
+                mapColumn = Document.COLUMN_DISPLAY_NAME;
+                break;
+            default:
+                throw new Error("Unexpected map mode.");
+        }
         final ContentValues[] valuesList = new ContentValues[documents.length];
         for (int i = 0; i < documents.length; i++) {
             valuesList[i] = new ContentValues();
             getChildDocumentValues(valuesList[i], deviceId, parentId, documents[i]);
         }
-        putDocuments(valuesList, SELECTION_CHILD_DOCUMENTS, parentId);
+        mDatabase.putDocuments(
+                valuesList, SELECTION_CHILD_DOCUMENTS, parentId, heuristic, mapColumn);
     }
 
     /**
-     * Clears MTP related identifier.
-     * It clears MTP's object handle and storage ID that are not stable over MTP sessions and mark
-     * the all documents as 'unmapped'. It also remove 'mapping' rows as mapping is cancelled now.
+     * Clears mapping between MTP identifier and document/root ID.
      */
     @VisibleForTesting
-    void clearMapping() {
-        mDatabase.beginTransaction();
-        try {
-            deleteDocumentsAndRoots(COLUMN_ROW_STATE + " = ?", strings(ROW_STATE_MAPPING));
-            final ContentValues values = new ContentValues();
-            values.putNull(COLUMN_OBJECT_HANDLE);
-            values.putNull(COLUMN_STORAGE_ID);
-            values.put(COLUMN_ROW_STATE, ROW_STATE_UNMAPPED);
-            mDatabase.update(TABLE_DOCUMENTS, values, null, null);
-            mDatabase.setTransactionSuccessful();
-        } finally {
-            mDatabase.endTransaction();
-        }
-    }
-
-    @VisibleForTesting
-    void resolveRootDocuments(int deviceId) {
-        resolveDocuments(SELECTION_ROOT_DOCUMENTS, Integer.toString(deviceId));
-    }
-
-    @VisibleForTesting
-    void resolveChildDocuments(String parentId) {
-        resolveDocuments(SELECTION_CHILD_DOCUMENTS, parentId);
+    synchronized void clearMapping() {
+        mDatabase.clearMapping();
+        mMappingMode.clear();
     }
 
     /**
-     * Puts the documents into the database.
-     * If the database found another unmapped document that shares the same name and parent,
-     * the document may be merged into the unmapped document. In that case, the database marks the
-     * root as 'mapping' and wait for {@link #resolveRootDocuments(int)} is invoked.
-     * @param valuesList Values that are stored in the database.
-     * @param selection SQL where closure to select rows that shares the same parent.
-     * @param arg Argument for selection SQL.
-     * @return List of Document ID inserted to the table.
+     * Stops adding root documents.
+     * @param deviceId Device ID.
+     * @return True if new rows are added/removed.
      */
-    private long[] putDocuments(ContentValues[] valuesList, String selection, String arg) {
-        mDatabase.beginTransaction();
-        try {
-            final long[] documentIds = new long[valuesList.length];
-            int i = 0;
-            for (final ContentValues values : valuesList) {
-                final String displayName =
-                        values.getAsString(Document.COLUMN_DISPLAY_NAME);
-                final long numUnmapped = DatabaseUtils.queryNumEntries(
-                        mDatabase,
-                        TABLE_DOCUMENTS,
-                        selection + " AND " +
-                        COLUMN_ROW_STATE + " = ? AND " +
-                        Document.COLUMN_DISPLAY_NAME + " = ?",
-                        strings(arg, ROW_STATE_UNMAPPED, displayName));
-                if (numUnmapped != 0) {
-                    values.put(COLUMN_ROW_STATE, ROW_STATE_MAPPING);
-                }
-                // Document ID is a primary integer key of the table. So the returned row IDs should
-                // be same with the document ID.
-                documentIds[i++] = mDatabase.insert(TABLE_DOCUMENTS, null, values);
-            }
-
-            mDatabase.setTransactionSuccessful();
-            return documentIds;
-        } finally {
-            mDatabase.endTransaction();
+    synchronized boolean stopAddingRootDocuments(int deviceId) {
+        final String mappingModeKey = getRootDocumentsMappingStateKey(deviceId);
+        switch (mMappingMode.get(mappingModeKey)) {
+            case MAP_BY_MTP_IDENTIFIER:
+                mMappingMode.remove(mappingModeKey);
+                return mDatabase.stopAddingDocuments(
+                        SELECTION_ROOT_DOCUMENTS,
+                        Integer.toString(deviceId),
+                        COLUMN_STORAGE_ID);
+            case MAP_BY_NAME:
+                mMappingMode.remove(mappingModeKey);
+                return mDatabase.stopAddingDocuments(
+                        SELECTION_ROOT_DOCUMENTS,
+                        Integer.toString(deviceId),
+                        Document.COLUMN_DISPLAY_NAME);
+            default:
+                throw new Error("Unexpected mapping state.");
         }
     }
 
     /**
-     * Maps 'unmapped' document and 'mapping' document that don't have document but shares the same
-     * name.
-     * If the database does not find corresponding 'mapping' document, it just removes 'unmapped'
-     * document from the database.
-     * @param selection Query to select rows for resolving.
-     * @param arg Argument for selection SQL.
+     * Stops adding documents under the parent.
+     * @param parentId Document ID of the parent.
      */
-    private void resolveDocuments(String selection, String arg) {
-        mDatabase.beginTransaction();
-        try {
-            // Get 1-to-1 mapping of unmapped document and mapping document.
-            final String unmappedIdQuery = createStateFilter(
-                    ROW_STATE_UNMAPPED, Document.COLUMN_DOCUMENT_ID);
-            final String mappingIdQuery = createStateFilter(
-                    ROW_STATE_MAPPING, Document.COLUMN_DOCUMENT_ID);
-            // SQL should be like:
-            // SELECT group_concat(CASE WHEN raw_state = 1 THEN document_id ELSE NULL END),
-            //        group_concat(CASE WHEN raw_state = 2 THEN document_id ELSE NULL END)
-            // WHERE device_id = ? AND parent_document_id IS NULL
-            // GROUP BY display_name
-            // HAVING count(CASE WHEN raw_state = 1 THEN document_id ELSE NULL END) = 1 AND
-            //        count(CASE WHEN raw_state = 2 THEN document_id ELSE NULL END) = 1
-            final Cursor mergingCursor = mDatabase.query(
-                    TABLE_DOCUMENTS,
-                    new String[] {
-                            "group_concat(" + unmappedIdQuery + ")",
-                            "group_concat(" + mappingIdQuery + ")"
-                    },
-                    selection,
-                    strings(arg),
-                    Document.COLUMN_DISPLAY_NAME,
-                    "count(" + unmappedIdQuery + ") = 1 AND count(" + mappingIdQuery + ") = 1",
-                    null);
-
-            final ContentValues values = new ContentValues();
-            while (mergingCursor.moveToNext()) {
-                final String unmappedId = mergingCursor.getString(0);
-                final String mappingId = mergingCursor.getString(1);
-
-                // Obtain the new values including the latest object handle from mapping row.
-                getFirstRow(
-                        TABLE_DOCUMENTS,
-                        SELECTION_DOCUMENT_ID,
-                        new String[] { mappingId },
-                        values);
-                values.remove(Document.COLUMN_DOCUMENT_ID);
-                values.put(COLUMN_ROW_STATE, ROW_STATE_MAPPED);
-                mDatabase.update(
-                        TABLE_DOCUMENTS,
-                        values,
-                        SELECTION_DOCUMENT_ID,
-                        new String[] { unmappedId });
-
-                getFirstRow(
-                        TABLE_ROOT_EXTRA,
-                        SELECTION_ROOT_ID,
-                        new String[] { mappingId },
-                        values);
-                if (values.size() > 0) {
-                    values.remove(Root.COLUMN_ROOT_ID);
-                    mDatabase.update(
-                            TABLE_ROOT_EXTRA,
-                            values,
-                            SELECTION_ROOT_ID,
-                            new String[] { unmappedId });
-                }
-
-                // Delete 'mapping' row.
-                deleteDocumentsAndRoots(SELECTION_DOCUMENT_ID, new String[] { mappingId });
-            }
-            mergingCursor.close();
-
-            // Delete all unmapped rows that cannot be mapped.
-            deleteDocumentsAndRoots(
-                    COLUMN_ROW_STATE + " = ? AND " + selection,
-                    strings(ROW_STATE_UNMAPPED, arg));
-
-            // The database cannot find old document ID for the mapping rows.
-            // Turn the all mapping rows into mapped state, which means the rows become to be
-            // valid with new document ID.
-            values.clear();
-            values.put(COLUMN_ROW_STATE, ROW_STATE_MAPPED);
-            mDatabase.update(
-                    TABLE_DOCUMENTS,
-                    values,
-                    COLUMN_ROW_STATE + " = ? AND " + selection,
-                    strings(ROW_STATE_MAPPING, arg));
-            mDatabase.setTransactionSuccessful();
-        } finally {
-            mDatabase.endTransaction();
+    @VisibleForTesting
+    synchronized void stopAddingChildDocuments(String parentId) {
+        final String mappingModeKey = getChildDocumentsMappingStateKey(parentId);
+        switch (mMappingMode.get(mappingModeKey)) {
+            case MAP_BY_MTP_IDENTIFIER:
+                mDatabase.stopAddingDocuments(
+                        SELECTION_CHILD_DOCUMENTS,
+                        parentId,
+                        COLUMN_OBJECT_HANDLE);
+                break;
+            case MAP_BY_NAME:
+                mDatabase.stopAddingDocuments(
+                        SELECTION_CHILD_DOCUMENTS,
+                        parentId,
+                        Document.COLUMN_DISPLAY_NAME);
+                break;
+            default:
+                throw new Error("Unexpected mapping state.");
         }
+        mMappingMode.remove(mappingModeKey);
     }
 
     /**
@@ -445,7 +315,7 @@
         values.put(COLUMN_STORAGE_ID, root.mStorageId);
         values.putNull(COLUMN_OBJECT_HANDLE);
         values.putNull(COLUMN_PARENT_DOCUMENT_ID);
-        values.put(COLUMN_ROW_STATE, ROW_STATE_MAPPED);
+        values.put(COLUMN_ROW_STATE, ROW_STATE_VALID);
         values.put(Document.COLUMN_MIME_TYPE, Document.MIME_TYPE_DIR);
         values.put(Document.COLUMN_DISPLAY_NAME, root.getRootName(resources));
         values.putNull(Document.COLUMN_SUMMARY);
@@ -482,7 +352,7 @@
         values.put(COLUMN_STORAGE_ID, info.getStorageId());
         values.put(COLUMN_OBJECT_HANDLE, info.getObjectHandle());
         values.put(COLUMN_PARENT_DOCUMENT_ID, parentId);
-        values.put(COLUMN_ROW_STATE, ROW_STATE_MAPPED);
+        values.put(COLUMN_ROW_STATE, ROW_STATE_VALID);
         values.put(Document.COLUMN_MIME_TYPE, mimeType);
         values.put(Document.COLUMN_DISPLAY_NAME, info.getName());
         values.putNull(Document.COLUMN_SUMMARY);
@@ -495,72 +365,18 @@
     }
 
     /**
-     * Obtains values of the first row for the query.
-     * @param values ContentValues that the values are stored to.
-     * @param table Target table.
-     * @param selection Query to select rows.
-     * @param args Argument for query.
+     * @param deviceId Device ID.
+     * @return Key for {@link #mMappingMode}.
      */
-    private void getFirstRow(String table, String selection, String[] args, ContentValues values) {
-        values.clear();
-        final Cursor cursor = mDatabase.query(table, null, selection, args, null, null, null, "1");
-        if (cursor.getCount() == 0) {
-            return;
-        }
-        cursor.moveToNext();
-        DatabaseUtils.cursorRowToContentValues(cursor, values);
-        cursor.close();
+    private static String getRootDocumentsMappingStateKey(int deviceId) {
+        return "RootDocuments/" + deviceId;
     }
 
     /**
-     * Deletes a document, and its root information if the document is a root document.
-     * @param selection Query to select documents.
-     * @param args Arguments for selection.
+     * @param parentDocumentId Document ID for the parent document.
+     * @return Key for {@link #mMappingMode}.
      */
-    private void deleteDocumentsAndRoots(String selection, String[] args) {
-        mDatabase.beginTransaction();
-        try {
-            mDatabase.delete(
-                    TABLE_ROOT_EXTRA,
-                    Root.COLUMN_ROOT_ID + " IN (" + SQLiteQueryBuilder.buildQueryString(
-                            false,
-                            TABLE_DOCUMENTS,
-                            new String[] { Document.COLUMN_DOCUMENT_ID },
-                            selection,
-                            null,
-                            null,
-                            null,
-                            null) + ")",
-                    args);
-            mDatabase.delete(TABLE_DOCUMENTS, selection, args);
-            mDatabase.setTransactionSuccessful();
-        } finally {
-            mDatabase.endTransaction();
-        }
-    }
-
-    /**
-     * Converts values into string array.
-     * @param args Values converted into string array.
-     * @return String array.
-     */
-    private static String[] strings(Object... args) {
-        final String[] results = new String[args.length];
-        for (int i = 0; i < args.length; i++) {
-            results[i] = Objects.toString(args[i]);
-        }
-        return results;
-    }
-
-    /**
-     * Gets SQL expression that represents the given value or NULL depends on the row state.
-     * @param state Expected row state.
-     * @param a SQL value.
-     * @return Expression that represents a if the row state is expected one, and represents NULL
-     *     otherwise.
-     */
-    private static String createStateFilter(int state, String a) {
-        return "CASE WHEN " + COLUMN_ROW_STATE + " = " + Integer.toString(state) +
-                " THEN " + a + " ELSE NULL END";
+    private static String getChildDocumentsMappingStateKey(String parentDocumentId) {
+        return "ChildDocuments/" + parentDocumentId;
     }
 }
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabaseConstants.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabaseConstants.java
new file mode 100644
index 0000000..977b12e
--- /dev/null
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabaseConstants.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.mtp;
+
+import android.provider.DocumentsContract.Document;
+import android.provider.DocumentsContract.Root;
+
+/**
+ * Class containing MtpDatabase constants.
+ */
+class MtpDatabaseConstants {
+    static final int DATABASE_VERSION = 1;
+    static final String DATABASE_NAME = null;
+
+    /**
+     * Table representing documents including root documents.
+     */
+    static final String TABLE_DOCUMENTS = "Documents";
+
+    /**
+     * Table containing additional information only available for root documents.
+     * The table uses same primary keys with corresponding documents.
+     */
+    static final String TABLE_ROOT_EXTRA = "RootExtra";
+
+    /**
+     * View to join Documents and RootExtra tables to provide roots information.
+     */
+    static final String VIEW_ROOTS = "Roots";
+
+    static final String COLUMN_DEVICE_ID = "device_id";
+    static final String COLUMN_STORAGE_ID = "storage_id";
+    static final String COLUMN_OBJECT_HANDLE = "object_handle";
+    static final String COLUMN_PARENT_DOCUMENT_ID = "parent_document_id";
+    static final String COLUMN_ROW_STATE = "row_state";
+
+    /**
+     * The state represents that the row has a valid object handle.
+     */
+    static final int ROW_STATE_VALID = 0;
+
+    /**
+     * The state represents that the rows added at the previous cycle and need to be updated with
+     * fresh values.
+     * The row may not have valid object handle. External application can still fetch the documents.
+     * If the external application tries to fetch object handle, the provider resolves pending
+     * documents with invalidated documents ahead.
+     */
+    static final int ROW_STATE_INVALIDATED = 1;
+
+    /**
+     * The state represents the raw has a valid object handle but it may be going to be mapped with
+     * another rows invalidated. After fetching all documents under the parent, the database tries
+     * to map the pending documents and the invalidated documents in order to keep old document ID
+     * alive.
+     */
+    static final int ROW_STATE_PENDING = 2;
+
+    /**
+     * Mapping mode that uses MTP identifier to find corresponding rows.
+     */
+    static final int MAP_BY_MTP_IDENTIFIER = 0;
+
+    /**
+     * Mapping mode that uses name to find corresponding rows.
+     */
+    static final int MAP_BY_NAME = 1;
+
+    static final String SELECTION_DOCUMENT_ID = Document.COLUMN_DOCUMENT_ID + " = ?";
+    static final String SELECTION_ROOT_ID = Root.COLUMN_ROOT_ID + " = ?";
+    static final String SELECTION_ROOT_DOCUMENTS =
+            COLUMN_DEVICE_ID + " = ? AND " + COLUMN_PARENT_DOCUMENT_ID + " IS NULL";
+    static final String SELECTION_CHILD_DOCUMENTS = COLUMN_PARENT_DOCUMENT_ID + " = ?";
+
+    static final String QUERY_CREATE_DOCUMENTS =
+            "CREATE TABLE " + TABLE_DOCUMENTS + " (" +
+            Document.COLUMN_DOCUMENT_ID +
+                " INTEGER PRIMARY KEY AUTOINCREMENT," +
+            COLUMN_DEVICE_ID + " INTEGER NOT NULL," +
+            COLUMN_STORAGE_ID + " INTEGER," +
+            COLUMN_OBJECT_HANDLE + " INTEGER," +
+            COLUMN_PARENT_DOCUMENT_ID + " INTEGER," +
+            COLUMN_ROW_STATE + " INTEGER NOT NULL," +
+            Document.COLUMN_MIME_TYPE + " TEXT," +
+            Document.COLUMN_DISPLAY_NAME + " TEXT NOT NULL," +
+            Document.COLUMN_SUMMARY + " TEXT," +
+            Document.COLUMN_LAST_MODIFIED + " INTEGER," +
+            Document.COLUMN_ICON + " INTEGER," +
+            Document.COLUMN_FLAGS + " INTEGER NOT NULL," +
+            Document.COLUMN_SIZE + " INTEGER NOT NULL);";
+
+    static final String QUERY_CREATE_ROOT_EXTRA =
+            "CREATE TABLE " + TABLE_ROOT_EXTRA + " (" +
+            Root.COLUMN_ROOT_ID + " INTEGER PRIMARY KEY," +
+            Root.COLUMN_FLAGS + " INTEGER NOT NULL," +
+            Root.COLUMN_AVAILABLE_BYTES + " INTEGER NOT NULL," +
+            Root.COLUMN_CAPACITY_BYTES + " INTEGER NOT NULL," +
+            Root.COLUMN_MIME_TYPES + " TEXT NOT NULL);";
+
+    /**
+     * Creates a view to join Documents table and RootExtra table on their primary keys to
+     * provide DocumentContract.Root equivalent information.
+     */
+    static final String QUERY_CREATE_VIEW_ROOTS =
+            "CREATE VIEW " + VIEW_ROOTS + " AS SELECT " +
+                    TABLE_DOCUMENTS + "." + Document.COLUMN_DOCUMENT_ID + " AS " +
+                            Root.COLUMN_ROOT_ID + "," +
+                    TABLE_ROOT_EXTRA + "." + Root.COLUMN_FLAGS + "," +
+                    TABLE_DOCUMENTS + "." + Document.COLUMN_ICON + " AS " +
+                            Root.COLUMN_ICON + "," +
+                    TABLE_DOCUMENTS + "." + Document.COLUMN_DISPLAY_NAME + " AS " +
+                            Root.COLUMN_TITLE + "," +
+                    TABLE_DOCUMENTS + "." + Document.COLUMN_SUMMARY + " AS " +
+                            Root.COLUMN_SUMMARY + "," +
+                    // Temporary replace COLUMN_DOCUMENT_ID with old format.
+                    TABLE_DOCUMENTS + "." + Document.COLUMN_DOCUMENT_ID + " AS " +
+                    Root.COLUMN_DOCUMENT_ID + "_," +
+                    TABLE_DOCUMENTS + "." + COLUMN_DEVICE_ID + "|| '_' ||" +
+                    TABLE_DOCUMENTS + "." + COLUMN_STORAGE_ID + "||'_0' AS " +
+                    Root.COLUMN_DOCUMENT_ID + "," +
+                    TABLE_ROOT_EXTRA + "." + Root.COLUMN_AVAILABLE_BYTES + "," +
+                    TABLE_ROOT_EXTRA + "." + Root.COLUMN_CAPACITY_BYTES + "," +
+                    TABLE_ROOT_EXTRA + "." + Root.COLUMN_MIME_TYPES + "," +
+                    TABLE_DOCUMENTS + "." + COLUMN_ROW_STATE +
+            " FROM " + TABLE_DOCUMENTS + " INNER JOIN " + TABLE_ROOT_EXTRA +
+            " ON " +
+                    COLUMN_PARENT_DOCUMENT_ID + " IS NULL AND " +
+                    TABLE_DOCUMENTS + "." + Document.COLUMN_DOCUMENT_ID +
+                    "=" +
+                    TABLE_ROOT_EXTRA + "." + Root.COLUMN_ROOT_ID;
+}
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabaseInternal.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabaseInternal.java
new file mode 100644
index 0000000..7328f05
--- /dev/null
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDatabaseInternal.java
@@ -0,0 +1,444 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.mtp;
+
+import static com.android.mtp.MtpDatabaseConstants.*;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.DatabaseUtils;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.database.sqlite.SQLiteQueryBuilder;
+import android.provider.DocumentsContract.Document;
+import android.provider.DocumentsContract.Root;
+
+import java.util.Objects;
+
+/**
+ * Class that provides operations processing SQLite database directly.
+ */
+class MtpDatabaseInternal {
+    private static class OpenHelper extends SQLiteOpenHelper {
+        public OpenHelper(Context context) {
+            super(context, DATABASE_NAME, null, DATABASE_VERSION);
+        }
+
+        @Override
+        public void onCreate(SQLiteDatabase db) {
+            db.execSQL(QUERY_CREATE_DOCUMENTS);
+            db.execSQL(QUERY_CREATE_ROOT_EXTRA);
+            db.execSQL(QUERY_CREATE_VIEW_ROOTS);
+        }
+
+        @Override
+        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+            throw new UnsupportedOperationException();
+        }
+    }
+
+    private final SQLiteDatabase mDatabase;
+
+    MtpDatabaseInternal(Context context) {
+        final OpenHelper helper = new OpenHelper(context);
+        mDatabase = helper.getWritableDatabase();
+    }
+
+    void close() {
+        mDatabase.close();
+    }
+
+    /**
+     * Queries roots information.
+     * @param columnNames Column names defined in {@link android.provider.DocumentsContract.Root}.
+     * @return Database cursor.
+     */
+    Cursor queryRoots(String[] columnNames) {
+        return mDatabase.query(
+                VIEW_ROOTS,
+                columnNames,
+                COLUMN_ROW_STATE + " IN (?, ?)",
+                strings(ROW_STATE_VALID, ROW_STATE_INVALIDATED),
+                null,
+                null,
+                null);
+    }
+
+    /**
+     * Queries root documents information.
+     * @param columnNames Column names defined in
+     *     {@link android.provider.DocumentsContract.Document}.
+     * @return Database cursor.
+     */
+    Cursor queryRootDocuments(String[] columnNames) {
+        return mDatabase.query(
+                TABLE_DOCUMENTS,
+                columnNames,
+                COLUMN_ROW_STATE + " IN (?, ?)",
+                strings(ROW_STATE_VALID, ROW_STATE_INVALIDATED),
+                null,
+                null,
+                null);
+    }
+
+    /**
+     * Queries documents information.
+     * @param columnNames Column names defined in
+     *     {@link android.provider.DocumentsContract.Document}.
+     * @return Database cursor.
+     */
+    Cursor queryChildDocuments(String[] columnNames, String parentDocumentId) {
+        return mDatabase.query(
+                TABLE_DOCUMENTS,
+                columnNames,
+                COLUMN_ROW_STATE + " IN (?, ?) AND " + COLUMN_PARENT_DOCUMENT_ID + " = ?",
+                strings(ROW_STATE_VALID, ROW_STATE_INVALIDATED, parentDocumentId),
+                null,
+                null,
+                null);
+    }
+
+    /**
+     * Remove all rows belong to a device.
+     * @param deviceId Device ID.
+     */
+    void removeDeviceRows(int deviceId) {
+        deleteDocumentsAndRoots(COLUMN_DEVICE_ID + "=?", strings(deviceId));
+    }
+
+    /**
+     * Starts adding new documents.
+     * The methods decides mapping mode depends on if all documents under the given parent have MTP
+     * identifier or not. If all the documents have MTP identifier, it uses the identifier to find
+     * a corresponding existing row. Otherwise it does heuristic.
+     *
+     * @param selection Query matches valid documents.
+     * @param arg Argument for selection.
+     * @return Mapping mode.
+     */
+    int startAddingDocuments(String selection, String arg) {
+        mDatabase.beginTransaction();
+        try {
+            // Delete all pending rows.
+            deleteDocumentsAndRoots(
+                    selection + " AND " + COLUMN_ROW_STATE + "=?", strings(arg, ROW_STATE_PENDING));
+
+            // Set all documents as invalidated.
+            final ContentValues values = new ContentValues();
+            values.put(COLUMN_ROW_STATE, ROW_STATE_INVALIDATED);
+            mDatabase.update(TABLE_DOCUMENTS, values, selection, new String[] { arg });
+
+            // If we have rows that does not have MTP identifier, do heuristic mapping by name.
+            final boolean useNameForResolving = DatabaseUtils.queryNumEntries(
+                    mDatabase,
+                    TABLE_DOCUMENTS,
+                    selection + " AND " + COLUMN_STORAGE_ID + " IS NULL",
+                    new String[] { arg }) > 0;
+            mDatabase.setTransactionSuccessful();
+            return useNameForResolving ? MAP_BY_NAME : MAP_BY_MTP_IDENTIFIER;
+        } finally {
+            mDatabase.endTransaction();
+        }
+    }
+
+    /**
+     * Puts the documents into the database.
+     * If the mapping mode is not heuristic, it just adds the rows to the database or updates the
+     * existing rows with the new values. If the mapping mode is heuristic, it adds some new rows as
+     * 'pending' state when that rows may be corresponding to existing 'invalidated' rows. Then
+     * {@link #stopAddingDocuments(String, String, String)} turns the pending rows into 'valid'
+     * rows. If the methods adds rows to database, it updates valueList with correct document ID.
+     *
+     * @param valuesList Values that are stored in the database.
+     * @param selection SQL where closure to select rows that shares the same parent.
+     * @param arg Argument for selection SQL.
+     * @param heuristic Whether the mapping mode is heuristic.
+     * @return Whether the method adds new rows.
+     */
+    boolean putDocuments(
+            ContentValues[] valuesList,
+            String selection,
+            String arg,
+            boolean heuristic,
+            String mappingKey) {
+        boolean added = false;
+        mDatabase.beginTransaction();
+        try {
+            for (final ContentValues values : valuesList) {
+                final Cursor candidateCursor = mDatabase.query(
+                        TABLE_DOCUMENTS,
+                        strings(Document.COLUMN_DOCUMENT_ID),
+                        selection + " AND " +
+                        COLUMN_ROW_STATE + "=? AND " +
+                        mappingKey + "=?",
+                        strings(arg, ROW_STATE_INVALIDATED, values.getAsString(mappingKey)),
+                        null,
+                        null,
+                        null,
+                        "1");
+                final long rowId;
+                if (candidateCursor.getCount() == 0) {
+                    rowId = mDatabase.insert(TABLE_DOCUMENTS, null, values);
+                    added = true;
+                } else if (!heuristic) {
+                    candidateCursor.moveToNext();
+                    final String documentId = candidateCursor.getString(0);
+                    rowId = mDatabase.update(
+                            TABLE_DOCUMENTS, values, SELECTION_DOCUMENT_ID, strings(documentId));
+                } else {
+                    values.put(COLUMN_ROW_STATE, ROW_STATE_PENDING);
+                    rowId = mDatabase.insert(TABLE_DOCUMENTS, null, values);
+                }
+                // Document ID is a primary integer key of the table. So the returned row
+                // IDs should be same with the document ID.
+                values.put(Document.COLUMN_DOCUMENT_ID, rowId);
+                candidateCursor.close();
+            }
+
+            mDatabase.setTransactionSuccessful();
+            return added;
+        } finally {
+            mDatabase.endTransaction();
+        }
+    }
+
+    /**
+     * Puts extra information for root documents.
+     * @param values Values containing extra information.
+     */
+    void putRootExtra(ContentValues values) {
+        mDatabase.replace(TABLE_ROOT_EXTRA, null, values);
+    }
+
+    /**
+     * Maps 'pending' document and 'invalidated' document that shares the same column of groupKey.
+     * If the database does not find corresponding 'invalidated' document, it just removes
+     * 'invalidated' document from the database.
+     * @param selection Query to select rows for resolving.
+     * @param arg Argument for selection SQL.
+     * @param groupKey Column name used to find corresponding rows.
+     * @return Whether the methods adds or removed visible rows.
+     */
+    boolean stopAddingDocuments(String selection, String arg, String groupKey) {
+        mDatabase.beginTransaction();
+        try {
+            // Get 1-to-1 mapping of invalidated document and pending document.
+            final String invalidatedIdQuery = createStateFilter(
+                    ROW_STATE_INVALIDATED, Document.COLUMN_DOCUMENT_ID);
+            final String pendingIdQuery = createStateFilter(
+                    ROW_STATE_PENDING, Document.COLUMN_DOCUMENT_ID);
+            // SQL should be like:
+            // SELECT group_concat(CASE WHEN raw_state = 1 THEN document_id ELSE NULL END),
+            //        group_concat(CASE WHEN raw_state = 2 THEN document_id ELSE NULL END)
+            // WHERE device_id = ? AND parent_document_id IS NULL
+            // GROUP BY display_name
+            // HAVING count(CASE WHEN raw_state = 1 THEN document_id ELSE NULL END) = 1 AND
+            //        count(CASE WHEN raw_state = 2 THEN document_id ELSE NULL END) = 1
+            final Cursor mergingCursor = mDatabase.query(
+                    TABLE_DOCUMENTS,
+                    new String[] {
+                            "group_concat(" + invalidatedIdQuery + ")",
+                            "group_concat(" + pendingIdQuery + ")"
+                    },
+                    selection,
+                    strings(arg),
+                    groupKey,
+                    "count(" + invalidatedIdQuery + ") = 1 AND count(" + pendingIdQuery + ") = 1",
+                    null);
+
+            final ContentValues values = new ContentValues();
+            while (mergingCursor.moveToNext()) {
+                final String invalidatedId = mergingCursor.getString(0);
+                final String pendingId = mergingCursor.getString(1);
+
+                // Obtain the new values including the latest object handle from mapping row.
+                getFirstRow(
+                        TABLE_DOCUMENTS,
+                        SELECTION_DOCUMENT_ID,
+                        new String[] { pendingId },
+                        values);
+                values.remove(Document.COLUMN_DOCUMENT_ID);
+                values.put(COLUMN_ROW_STATE, ROW_STATE_VALID);
+                mDatabase.update(
+                        TABLE_DOCUMENTS,
+                        values,
+                        SELECTION_DOCUMENT_ID,
+                        new String[] { invalidatedId });
+
+                getFirstRow(
+                        TABLE_ROOT_EXTRA,
+                        SELECTION_ROOT_ID,
+                        new String[] { pendingId },
+                        values);
+                if (values.size() > 0) {
+                    values.remove(Root.COLUMN_ROOT_ID);
+                    mDatabase.update(
+                            TABLE_ROOT_EXTRA,
+                            values,
+                            SELECTION_ROOT_ID,
+                            new String[] { invalidatedId });
+                }
+
+                // Delete 'pending' row.
+                deleteDocumentsAndRoots(SELECTION_DOCUMENT_ID, new String[] { pendingId });
+            }
+            mergingCursor.close();
+
+            boolean changed = false;
+
+            // Delete all invalidated rows that cannot be mapped.
+            if (deleteDocumentsAndRoots(
+                    COLUMN_ROW_STATE + " = ? AND " + selection,
+                    strings(ROW_STATE_INVALIDATED, arg))) {
+                changed = true;
+            }
+
+            // The database cannot find old document ID for the pending rows.
+            // Turn the all pending rows into valid state, which means the rows become to be
+            // valid with new document ID.
+            values.clear();
+            values.put(COLUMN_ROW_STATE, ROW_STATE_VALID);
+            if (mDatabase.update(
+                    TABLE_DOCUMENTS,
+                    values,
+                    COLUMN_ROW_STATE + " = ? AND " + selection,
+                    strings(ROW_STATE_PENDING, arg)) != 0) {
+                changed = true;
+            }
+            mDatabase.setTransactionSuccessful();
+            return changed;
+        } finally {
+            mDatabase.endTransaction();
+        }
+    }
+
+    /**
+     * Clears MTP related identifier.
+     * It clears MTP's object handle and storage ID that are not stable over MTP sessions and mark
+     * the all documents as 'invalidated'. It also remove 'pending' rows as adding is cancelled
+     * now.
+     */
+    void clearMapping() {
+        mDatabase.beginTransaction();
+        try {
+            deleteDocumentsAndRoots(COLUMN_ROW_STATE + " = ?", strings(ROW_STATE_PENDING));
+            final ContentValues values = new ContentValues();
+            values.putNull(COLUMN_OBJECT_HANDLE);
+            values.putNull(COLUMN_STORAGE_ID);
+            values.put(COLUMN_ROW_STATE, ROW_STATE_INVALIDATED);
+            mDatabase.update(TABLE_DOCUMENTS, values, null, null);
+            mDatabase.setTransactionSuccessful();
+        } finally {
+            mDatabase.endTransaction();
+        }
+    }
+
+    /**
+     * {@link android.database.sqlite.SQLiteDatabase#beginTransaction()}
+     */
+    void beginTransaction() {
+        mDatabase.beginTransaction();
+    }
+
+    /**
+     * {@link android.database.sqlite.SQLiteDatabase#setTransactionSuccessful()}
+     */
+    void setTransactionSuccessful() {
+        mDatabase.setTransactionSuccessful();
+    }
+
+    /**
+     * {@link android.database.sqlite.SQLiteDatabase#endTransaction()}
+     */
+    void endTransaction() {
+        mDatabase.endTransaction();
+    }
+
+    /**
+     * Deletes a document, and its root information if the document is a root document.
+     * @param selection Query to select documents.
+     * @param args Arguments for selection.
+     * @return Whether the method deletes rows.
+     */
+    private boolean deleteDocumentsAndRoots(String selection, String[] args) {
+        mDatabase.beginTransaction();
+        try {
+            int deleted = 0;
+            deleted += mDatabase.delete(
+                    TABLE_ROOT_EXTRA,
+                    Root.COLUMN_ROOT_ID + " IN (" + SQLiteQueryBuilder.buildQueryString(
+                            false,
+                            TABLE_DOCUMENTS,
+                            new String[] { Document.COLUMN_DOCUMENT_ID },
+                            selection,
+                            null,
+                            null,
+                            null,
+                            null) + ")",
+                    args);
+            deleted += mDatabase.delete(TABLE_DOCUMENTS, selection, args);
+            mDatabase.setTransactionSuccessful();
+            return deleted != 0;
+        } finally {
+            mDatabase.endTransaction();
+        }
+    }
+
+    /**
+     * Obtains values of the first row for the query.
+     * @param values ContentValues that the values are stored to.
+     * @param table Target table.
+     * @param selection Query to select rows.
+     * @param args Argument for query.
+     */
+    private void getFirstRow(String table, String selection, String[] args, ContentValues values) {
+        values.clear();
+        final Cursor cursor = mDatabase.query(table, null, selection, args, null, null, null, "1");
+        if (cursor.getCount() == 0) {
+            return;
+        }
+        cursor.moveToNext();
+        DatabaseUtils.cursorRowToContentValues(cursor, values);
+        cursor.close();
+    }
+
+    /**
+     * Gets SQL expression that represents the given value or NULL depends on the row state.
+     * @param state Expected row state.
+     * @param a SQL value.
+     * @return Expression that represents a if the row state is expected one, and represents NULL
+     *     otherwise.
+     */
+    private static String createStateFilter(int state, String a) {
+        return "CASE WHEN " + COLUMN_ROW_STATE + " = " + Integer.toString(state) +
+                " THEN " + a + " ELSE NULL END";
+    }
+
+    /**
+     * Converts values into string array.
+     * @param args Values converted into string array.
+     * @return String array.
+     */
+    private static String[] strings(Object... args) {
+        final String[] results = new String[args.length];
+        for (int i = 0; i < args.length; i++) {
+            results[i] = Objects.toString(args[i]);
+        }
+        return results;
+    }
+}
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
index 7883e61..0931445 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
@@ -62,6 +62,7 @@
     private Map<Integer, DeviceToolkit> mDeviceToolkits;
     private RootScanner mRootScanner;
     private Resources mResources;
+    private MtpDatabase mDatabase;
 
     /**
      * Provides singleton instance to MtpDocumentsService.
@@ -77,17 +78,23 @@
         mMtpManager = new MtpManager(getContext());
         mResolver = getContext().getContentResolver();
         mDeviceToolkits = new HashMap<Integer, DeviceToolkit>();
-        mRootScanner = new RootScanner(mResolver, mMtpManager);
+        mDatabase = new MtpDatabase(getContext());
+        mRootScanner = new RootScanner(mResolver, mResources, mMtpManager, mDatabase);
         return true;
     }
 
     @VisibleForTesting
-    void onCreateForTesting(Resources resources, MtpManager mtpManager, ContentResolver resolver) {
+    void onCreateForTesting(
+            Resources resources,
+            MtpManager mtpManager,
+            ContentResolver resolver,
+            MtpDatabase database) {
         mResources = resources;
         mMtpManager = mtpManager;
         mResolver = resolver;
         mDeviceToolkits = new HashMap<Integer, DeviceToolkit>();
-        mRootScanner = new RootScanner(mResolver, mMtpManager);
+        mDatabase = database;
+        mRootScanner = new RootScanner(mResolver, mResources, mMtpManager, mDatabase);
     }
 
     @Override
@@ -95,17 +102,7 @@
         if (projection == null) {
             projection = MtpDocumentsProvider.DEFAULT_ROOT_PROJECTION;
         }
-        final MatrixCursor cursor = new MatrixCursor(projection);
-        final MtpRoot[] roots = mRootScanner.getRoots();
-        for (final MtpRoot root : roots) {
-            final Identifier rootIdentifier = new Identifier(root.mDeviceId, root.mStorageId);
-            final MatrixCursor.RowBuilder builder = cursor.newRow();
-            builder.add(Root.COLUMN_ROOT_ID, rootIdentifier.toRootId());
-            builder.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_IS_CHILD | Root.FLAG_SUPPORTS_CREATE);
-            builder.add(Root.COLUMN_TITLE, root.getRootName(mResources));
-            builder.add(Root.COLUMN_DOCUMENT_ID, rootIdentifier.toDocumentId());
-            builder.add(Root.COLUMN_AVAILABLE_BYTES , root.mFreeSpace);
-        }
+        final Cursor cursor = mDatabase.queryRoots(projection);
         cursor.setNotificationUri(
                 mResolver, DocumentsContract.buildRootsUri(MtpDocumentsProvider.AUTHORITY));
         return cursor;
@@ -266,14 +263,16 @@
         // TODO: Flush the device before closing (if not closed externally).
         getDeviceToolkit(deviceId).mDocumentLoader.clearTasks();
         mDeviceToolkits.remove(deviceId);
+        mDatabase.removeDeviceRows(deviceId);
         mMtpManager.closeDevice(deviceId);
-        mRootScanner.scanNow();
+        mRootScanner.notifyChange();
     }
 
-    void closeAllDevices() {
+    void close() throws InterruptedException {
         boolean closed = false;
         for (int deviceId : mMtpManager.getOpenedDeviceIds()) {
             try {
+                mDatabase.removeDeviceRows(deviceId);
                 mMtpManager.closeDevice(deviceId);
                 getDeviceToolkit(deviceId).mDocumentLoader.clearTasks();
                 closed = true;
@@ -282,8 +281,10 @@
             }
         }
         if (closed) {
-            mRootScanner.scanNow();
+            mRootScanner.notifyChange();
         }
+        mRootScanner.close();
+        mDatabase.close();
     }
 
     boolean hasOpenedDevices() {
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java
index 328f618..2d1af26 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java
@@ -79,9 +79,13 @@
     @Override
     public void onDestroy() {
         final MtpDocumentsProvider provider = MtpDocumentsProvider.getInstance();
-        provider.closeAllDevices();
         unregisterReceiver(mReceiver);
         mReceiver = null;
+        try {
+            provider.close();
+        } catch (InterruptedException e) {
+            Log.e(MtpDocumentsProvider.TAG, e.getMessage());
+        }
         super.onDestroy();
     }
 
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java b/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java
index ffab176..415f89e 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java
@@ -1,14 +1,13 @@
 package com.android.mtp;
 
 import android.content.ContentResolver;
+import android.content.res.Resources;
 import android.net.Uri;
 import android.os.Process;
 import android.provider.DocumentsContract;
 import android.util.Log;
 
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Arrays;
 
 final class RootScanner {
     /**
@@ -28,18 +27,28 @@
     private final static long SHORT_POLLING_TIMES = 10;
 
     final ContentResolver mResolver;
+    final Resources mResources;
     final MtpManager mManager;
-    MtpRoot[] mLastRoots = new MtpRoot[0];
+    final MtpDatabase mDatabase;
+    boolean mClosed = false;
     int mPollingCount;
-    boolean mHasBackgroundTask = false;
+    Thread mBackgroundThread;
 
-    RootScanner(ContentResolver resolver, MtpManager manager) {
+    RootScanner(
+            ContentResolver resolver,
+            Resources resources,
+            MtpManager manager,
+            MtpDatabase database) {
         mResolver = resolver;
+        mResources = resources;
         mManager = manager;
+        mDatabase = database;
     }
 
-    synchronized MtpRoot[] getRoots() {
-        return mLastRoots;
+    void notifyChange() {
+        final Uri uri =
+                DocumentsContract.buildRootsUri(MtpDocumentsProvider.AUTHORITY);
+        mResolver.notifyChange(uri, null, false);
     }
 
     /**
@@ -47,26 +56,29 @@
      * If the background thread has already gone, it restarts another background thread.
      */
     synchronized void scanNow() {
+        if (mClosed) {
+            return;
+        }
         mPollingCount = 0;
-        if (!mHasBackgroundTask) {
-            mHasBackgroundTask = true;
-            new BackgroundLoaderThread().start();
+        if (mBackgroundThread == null) {
+            mBackgroundThread = new BackgroundLoaderThread();
+            mBackgroundThread.start();
         } else {
             notify();
         }
     }
 
-    private MtpRoot[] createRoots(int[] deviceIds) {
-        final ArrayList<MtpRoot> roots = new ArrayList<>();
-        for (final int deviceId : deviceIds) {
-            try {
-                roots.addAll(Arrays.asList(mManager.getRoots(deviceId)));
-            } catch (IOException error) {
-                // Skip device that return error.
-                Log.d(MtpDocumentsProvider.TAG, error.getMessage());
+    void close() throws InterruptedException {
+        Thread thread;
+        synchronized (this) {
+            mClosed = true;
+            thread = mBackgroundThread;
+            if (mBackgroundThread == null) {
+                return;
             }
+            notify();
         }
-        return roots.toArray(new MtpRoot[roots.size()]);
+        thread.join();
     }
 
     private final class BackgroundLoaderThread extends Thread {
@@ -74,18 +86,28 @@
         public void run() {
             Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
             synchronized (RootScanner.this) {
-                while (true) {
+                while (!mClosed) {
                     final int[] deviceIds = mManager.getOpenedDeviceIds();
-                    final MtpRoot[] newRoots = createRoots(deviceIds);
-                    if (!Arrays.equals(mLastRoots, newRoots)) {
-                        final Uri uri =
-                                DocumentsContract.buildRootsUri(MtpDocumentsProvider.AUTHORITY);
-                        mResolver.notifyChange(uri, null, false);
-                        mLastRoots = newRoots;
-                    }
                     if (deviceIds.length == 0) {
                         break;
                     }
+                    boolean changed = false;
+                    for (int deviceId : deviceIds) {
+                        try {
+                            mDatabase.startAddingRootDocuments(deviceId);
+                            changed = mDatabase.putRootDocuments(
+                                    deviceId, mResources, mManager.getRoots(deviceId)) || changed;
+                            changed = mDatabase.stopAddingRootDocuments(deviceId) || changed;
+                        } catch (IOException exp) {
+                            // The error may happen on the device. We would like to continue getting
+                            // roots for other devices.
+                            Log.e(MtpDocumentsProvider.TAG, exp.getMessage());
+                            continue;
+                        }
+                    }
+                    if (changed) {
+                        notifyChange();
+                    }
                     mPollingCount++;
                     try {
                         // Use SHORT_POLLING_PERIOD for the first SHORT_POLLING_TIMES because it is
@@ -99,7 +121,7 @@
                     }
                 }
 
-                mHasBackgroundTask = false;
+                mBackgroundThread = null;
             }
         }
     }
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDatabaseTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDatabaseTest.java
index 3878ba6..ce4cf14 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDatabaseTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDatabaseTest.java
@@ -28,9 +28,9 @@
 public class MtpDatabaseTest extends AndroidTestCase {
     private final String[] COLUMN_NAMES = new String[] {
         DocumentsContract.Document.COLUMN_DOCUMENT_ID,
-        MtpDatabase.COLUMN_DEVICE_ID,
-        MtpDatabase.COLUMN_STORAGE_ID,
-        MtpDatabase.COLUMN_OBJECT_HANDLE,
+        MtpDatabaseConstants.COLUMN_DEVICE_ID,
+        MtpDatabaseConstants.COLUMN_STORAGE_ID,
+        MtpDatabaseConstants.COLUMN_OBJECT_HANDLE,
         DocumentsContract.Document.COLUMN_MIME_TYPE,
         DocumentsContract.Document.COLUMN_DISPLAY_NAME,
         DocumentsContract.Document.COLUMN_SUMMARY,
@@ -42,13 +42,9 @@
 
     private final TestResources resources = new TestResources();
 
-    @Override
-    public void tearDown() {
-        MtpDatabase.deleteDatabase(getContext());
-    }
-
     public void testPutRootDocuments() throws Exception {
         final MtpDatabase database = new MtpDatabase(getContext());
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 1, "Device", "Storage", 1000, 2000, ""),
                 new MtpRoot(0, 2, "Device", "Storage", 2000, 4000, ""),
@@ -90,7 +86,7 @@
                     Root.COLUMN_ICON,
                     Root.COLUMN_TITLE,
                     Root.COLUMN_SUMMARY,
-                    Root.COLUMN_DOCUMENT_ID,
+                    Root.COLUMN_DOCUMENT_ID + "_",
                     Root.COLUMN_AVAILABLE_BYTES,
                     Root.COLUMN_CAPACITY_BYTES
             });
@@ -141,7 +137,7 @@
 
     public void testPutChildDocuments() throws Exception {
         final MtpDatabase database = new MtpDatabase(getContext());
-
+        database.startAddingChildDocuments("parentId");
         database.putChildDocuments(0, "parentId", new MtpObjectInfo[] {
                 createDocument(100, "note.txt", MtpConstants.FORMAT_TEXT, 1024),
                 createDocument(101, "image.jpg", MtpConstants.FORMAT_EXIF_JPEG, 2 * 1024 * 1024),
@@ -209,13 +205,14 @@
         final MtpDatabase database = new MtpDatabase(getContext());
         final String[] columns = new String[] {
                 DocumentsContract.Document.COLUMN_DOCUMENT_ID,
-                MtpDatabase.COLUMN_STORAGE_ID,
+                MtpDatabaseConstants.COLUMN_STORAGE_ID,
                 DocumentsContract.Document.COLUMN_DISPLAY_NAME
         };
         final String[] rootColumns = new String[] {
                 Root.COLUMN_ROOT_ID,
                 Root.COLUMN_AVAILABLE_BYTES
         };
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 100, "Device", "Storage A", 1000, 0, ""),
                 new MtpRoot(0, 101, "Device", "Storage B", 1001, 0, "")
@@ -275,6 +272,7 @@
             cursor.close();
         }
 
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 200, "Device", "Storage A", 2000, 0, ""),
                 new MtpRoot(0, 202, "Device", "Storage C", 2002, 0, "")
@@ -313,7 +311,7 @@
             cursor.close();
         }
 
-        database.resolveRootDocuments(0);
+        database.stopAddingRootDocuments(0);
 
         {
             final Cursor cursor = database.queryRootDocuments(columns);
@@ -346,9 +344,10 @@
         final MtpDatabase database = new MtpDatabase(getContext());
         final String[] columns = new String[] {
                 DocumentsContract.Document.COLUMN_DOCUMENT_ID,
-                MtpDatabase.COLUMN_OBJECT_HANDLE,
+                MtpDatabaseConstants.COLUMN_OBJECT_HANDLE,
                 DocumentsContract.Document.COLUMN_DISPLAY_NAME
         };
+        database.startAddingChildDocuments("parentId");
         database.putChildDocuments(0, "parentId", new MtpObjectInfo[] {
                 createDocument(100, "note.txt", MtpConstants.FORMAT_TEXT, 1024),
                 createDocument(101, "image.jpg", MtpConstants.FORMAT_EXIF_JPEG, 2 * 1024 * 1024),
@@ -378,6 +377,7 @@
             cursor.close();
         }
 
+        database.startAddingChildDocuments("parentId");
         database.putChildDocuments(0, "parentId", new MtpObjectInfo[] {
                 createDocument(200, "note.txt", MtpConstants.FORMAT_TEXT, 1024),
                 createDocument(203, "video.mp4", MtpConstants.FORMAT_MP4_CONTAINER, 1024),
@@ -395,7 +395,7 @@
             cursor.close();
         }
 
-        database.resolveChildDocuments("parentId");
+        database.stopAddingChildDocuments("parentId");
 
         {
             final Cursor cursor = database.queryChildDocuments(columns, "parentId");
@@ -418,13 +418,15 @@
         final MtpDatabase database = new MtpDatabase(getContext());
         final String[] columns = new String[] {
                 DocumentsContract.Document.COLUMN_DOCUMENT_ID,
-                MtpDatabase.COLUMN_STORAGE_ID,
+                MtpDatabaseConstants.COLUMN_STORAGE_ID,
                 DocumentsContract.Document.COLUMN_DISPLAY_NAME
         };
         final String[] rootColumns = new String[] {
                 Root.COLUMN_ROOT_ID,
                 Root.COLUMN_AVAILABLE_BYTES
         };
+        database.startAddingRootDocuments(0);
+        database.startAddingRootDocuments(1);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 100, "Device", "Storage", 0, 0, "")
         });
@@ -460,14 +462,16 @@
 
         database.clearMapping();
 
+        database.startAddingRootDocuments(0);
+        database.startAddingRootDocuments(1);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 200, "Device", "Storage", 2000, 0, "")
         });
         database.putRootDocuments(1, resources, new MtpRoot[] {
                 new MtpRoot(1, 300, "Device", "Storage", 3000, 0, "")
         });
-        database.resolveRootDocuments(0);
-        database.resolveRootDocuments(1);
+        database.stopAddingRootDocuments(0);
+        database.stopAddingRootDocuments(1);
 
         {
             final Cursor cursor = database.queryRootDocuments(columns);
@@ -500,8 +504,11 @@
         final MtpDatabase database = new MtpDatabase(getContext());
         final String[] columns = new String[] {
                 DocumentsContract.Document.COLUMN_DOCUMENT_ID,
-                MtpDatabase.COLUMN_OBJECT_HANDLE
+                MtpDatabaseConstants.COLUMN_OBJECT_HANDLE
         };
+
+        database.startAddingChildDocuments("parentId1");
+        database.startAddingChildDocuments("parentId2");
         database.putChildDocuments(0, "parentId1", new MtpObjectInfo[] {
                 createDocument(100, "note.txt", MtpConstants.FORMAT_TEXT, 1024),
         });
@@ -509,13 +516,16 @@
                 createDocument(101, "note.txt", MtpConstants.FORMAT_TEXT, 1024),
         });
         database.clearMapping();
+
+        database.startAddingChildDocuments("parentId1");
+        database.startAddingChildDocuments("parentId2");
         database.putChildDocuments(0, "parentId1", new MtpObjectInfo[] {
                 createDocument(200, "note.txt", MtpConstants.FORMAT_TEXT, 1024),
         });
         database.putChildDocuments(0, "parentId2", new MtpObjectInfo[] {
                 createDocument(201, "note.txt", MtpConstants.FORMAT_TEXT, 1024),
         });
-        database.resolveChildDocuments("parentId1");
+        database.stopAddingChildDocuments("parentId1");
 
         {
             final Cursor cursor = database.queryChildDocuments(columns, "parentId1");
@@ -539,25 +549,32 @@
         final MtpDatabase database = new MtpDatabase(getContext());
         final String[] columns = new String[] {
                 DocumentsContract.Document.COLUMN_DOCUMENT_ID,
-                MtpDatabase.COLUMN_STORAGE_ID,
+                MtpDatabaseConstants.COLUMN_STORAGE_ID,
                 DocumentsContract.Document.COLUMN_DISPLAY_NAME
         };
         final String[] rootColumns = new String[] {
                 Root.COLUMN_ROOT_ID,
                 Root.COLUMN_AVAILABLE_BYTES
         };
+
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 100, "Device", "Storage", 0, 0, ""),
         });
         database.clearMapping();
+
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 200, "Device", "Storage", 2000, 0, ""),
         });
         database.clearMapping();
+
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 300, "Device", "Storage", 3000, 0, ""),
         });
-        database.resolveRootDocuments(0);
+        database.stopAddingRootDocuments(0);
+
         {
             final Cursor cursor = database.queryRootDocuments(columns);
             assertEquals(1, cursor.getCount());
@@ -581,22 +598,27 @@
         final MtpDatabase database = new MtpDatabase(getContext());
         final String[] columns = new String[] {
                 DocumentsContract.Document.COLUMN_DOCUMENT_ID,
-                MtpDatabase.COLUMN_STORAGE_ID,
+                MtpDatabaseConstants.COLUMN_STORAGE_ID,
                 DocumentsContract.Document.COLUMN_DISPLAY_NAME
         };
         final String[] rootColumns = new String[] {
                 Root.COLUMN_ROOT_ID,
                 Root.COLUMN_AVAILABLE_BYTES
         };
+
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 100, "Device", "Storage", 0, 0, ""),
         });
         database.clearMapping();
+
+        database.startAddingRootDocuments(0);
         database.putRootDocuments(0, resources, new MtpRoot[] {
                 new MtpRoot(0, 200, "Device", "Storage", 2000, 0, ""),
                 new MtpRoot(0, 201, "Device", "Storage", 2001, 0, ""),
         });
-        database.resolveRootDocuments(0);
+        database.stopAddingRootDocuments(0);
+
         {
             final Cursor cursor = database.queryRootDocuments(columns);
             assertEquals(2, cursor.getCount());
@@ -622,4 +644,71 @@
             cursor.close();
         }
     }
+
+    public void testReplaceExistingRoots() {
+        // The client code should be able to replace exisitng rows with new information.
+        final MtpDatabase database = new MtpDatabase(getContext());
+        // Add one.
+        database.startAddingRootDocuments(0);
+        database.putRootDocuments(0, resources, new MtpRoot[] {
+                new MtpRoot(0, 100, "Device", "Storage A", 0, 0, ""),
+        });
+        database.stopAddingRootDocuments(0);
+        // Replace it.
+        database.startAddingRootDocuments(0);
+        database.putRootDocuments(0, resources, new MtpRoot[] {
+                new MtpRoot(0, 100, "Device", "Storage B", 1000, 1000, ""),
+        });
+        database.stopAddingRootDocuments(0);
+        {
+            final String[] columns = new String[] {
+                    DocumentsContract.Document.COLUMN_DOCUMENT_ID,
+                    MtpDatabaseConstants.COLUMN_STORAGE_ID,
+                    DocumentsContract.Document.COLUMN_DISPLAY_NAME
+            };
+            final Cursor cursor = database.queryRootDocuments(columns);
+            assertEquals(1, cursor.getCount());
+            cursor.moveToNext();
+            assertEquals("documentId", 1, cursor.getInt(0));
+            assertEquals("storageId", 100, cursor.getInt(1));
+            assertEquals("name", "Device Storage B", cursor.getString(2));
+            cursor.close();
+        }
+        {
+            final String[] columns = new String[] {
+                    Root.COLUMN_ROOT_ID,
+                    Root.COLUMN_AVAILABLE_BYTES
+            };
+            final Cursor cursor = database.queryRoots(columns);
+            assertEquals(1, cursor.getCount());
+            cursor.moveToNext();
+            assertEquals("rootId", 1, cursor.getInt(0));
+            assertEquals("availableBytes", 1000, cursor.getInt(1));
+            cursor.close();
+        }
+    }
+
+    public void _testFailToReplaceExisitingUnmappedRoots() {
+        // The client code should not be able to replace rows before resolving 'unmapped' rows.
+        final MtpDatabase database = new MtpDatabase(getContext());
+        // Add one.
+        database.startAddingRootDocuments(0);
+        database.putRootDocuments(0, resources, new MtpRoot[] {
+                new MtpRoot(0, 100, "Device", "Storage A", 0, 0, ""),
+        });
+        database.clearMapping();
+        // Add one.
+        database.putRootDocuments(0, resources, new MtpRoot[] {
+                new MtpRoot(0, 100, "Device", "Storage B", 1000, 1000, ""),
+        });
+        // Add one more before resolving unmapped documents.
+        try {
+            database.putRootDocuments(0, resources, new MtpRoot[] {
+                    new MtpRoot(0, 100, "Device", "Storage B", 1000, 1000, ""),
+            });
+            fail();
+        } catch (Throwable e) {
+            assertTrue(e instanceof Error);
+        }
+    }
 }
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
index 5765f0a..bc7f28c 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
@@ -36,13 +36,24 @@
     private MtpDocumentsProvider mProvider;
     private TestMtpManager mMtpManager;
     private final TestResources mResources = new TestResources();
+    private MtpDatabase mDatabase;
 
     @Override
     public void setUp() throws IOException {
         mResolver = new TestContentResolver();
         mMtpManager = new TestMtpManager(getContext());
         mProvider = new MtpDocumentsProvider();
-        mProvider.onCreateForTesting(mResources, mMtpManager, mResolver);
+        mDatabase = new MtpDatabase(getContext());
+        mProvider.onCreateForTesting(mResources, mMtpManager, mResolver, mDatabase);
+    }
+
+    @Override
+    public void tearDown() {
+        try {
+            mProvider.close();
+        } catch (InterruptedException e) {
+            fail();
+        }
     }
 
     public void testOpenAndCloseDevice() throws Exception {
@@ -96,26 +107,6 @@
         mResolver.waitForNotification(ROOTS_URI, 1);
     }
 
-    public void testCloseAllDevices() throws Exception {
-        mMtpManager.addValidDevice(0);
-        mMtpManager.setRoots(0, new MtpRoot[] {
-                new MtpRoot(
-                        0 /* deviceId */,
-                        1 /* storageId */,
-                        "Device A" /* device model name */,
-                        "Storage A" /* volume description */,
-                        1024 /* free space */,
-                        2048 /* total space */,
-                        "" /* no volume identifier */)
-        });
-        mProvider.closeAllDevices();
-        mProvider.openDevice(0);
-        mResolver.waitForNotification(ROOTS_URI, 1);
-
-        mProvider.closeAllDevices();
-        mResolver.waitForNotification(ROOTS_URI, 2);
-    }
-
     public void testQueryRoots() throws Exception {
         mMtpManager.addValidDevice(0);
         mMtpManager.addValidDevice(1);
@@ -146,7 +137,7 @@
             final Cursor cursor = mProvider.queryRoots(null);
             assertEquals(1, cursor.getCount());
             cursor.moveToNext();
-            assertEquals("0_1", cursor.getString(0));
+            assertEquals("1", cursor.getString(0));
             assertEquals(Root.FLAG_SUPPORTS_IS_CHILD | Root.FLAG_SUPPORTS_CREATE, cursor.getInt(1));
             // TODO: Add storage icon for MTP devices.
             assertTrue(cursor.isNull(2) /* icon */);
@@ -162,7 +153,7 @@
             assertEquals(2, cursor.getCount());
             cursor.moveToNext();
             cursor.moveToNext();
-            assertEquals("1_1", cursor.getString(0));
+            assertEquals("2", cursor.getString(0));
             assertEquals(Root.FLAG_SUPPORTS_IS_CHILD | Root.FLAG_SUPPORTS_CREATE, cursor.getInt(1));
             // TODO: Add storage icon for MTP devices.
             assertTrue(cursor.isNull(2) /* icon */);
@@ -170,13 +161,6 @@
             assertEquals("1_1_0", cursor.getString(4));
             assertEquals(2048, cursor.getInt(5));
         }
-
-        {
-            mProvider.closeAllDevices();
-            mResolver.waitForNotification(ROOTS_URI, 3);
-            final Cursor cursor = mProvider.queryRoots(null);
-            assertEquals(0, cursor.getCount());
-        }
     }
 
     public void testQueryRoots_error() throws Exception {
@@ -201,7 +185,7 @@
             final Cursor cursor = mProvider.queryRoots(null);
             assertEquals(1, cursor.getCount());
             cursor.moveToNext();
-            assertEquals("1_1", cursor.getString(0));
+            assertEquals("1", cursor.getString(0));
             assertEquals(Root.FLAG_SUPPORTS_IS_CHILD | Root.FLAG_SUPPORTS_CREATE, cursor.getInt(1));
             // TODO: Add storage icon for MTP devices.
             assertTrue(cursor.isNull(2) /* icon */);
diff --git a/packages/PrintSpooler/res/drawable/ic_add.xml b/packages/PrintSpooler/res/drawable/ic_add.xml
new file mode 100644
index 0000000..1442b1b
--- /dev/null
+++ b/packages/PrintSpooler/res/drawable/ic_add.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"
+        android:fillColor="#FFFFFF"/>
+</vector>
\ No newline at end of file
diff --git a/packages/PrintSpooler/res/drawable/ic_search.xml b/packages/PrintSpooler/res/drawable/ic_search.xml
deleted file mode 100644
index 991fa38b..0000000
--- a/packages/PrintSpooler/res/drawable/ic_search.xml
+++ /dev/null
@@ -1,43 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<selector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:autoMirrored="true">
-
-    <item
-        android:state_checked="true">
-        <bitmap
-            android:src="@*android:drawable/ic_menu_search"
-            android:tint="?android:attr/colorControlActivated">
-        </bitmap>
-    </item>
-
-    <item
-        android:state_pressed="true">
-        <bitmap
-            android:src="@*android:drawable/ic_menu_search"
-            android:tint="?android:attr/colorControlActivated">
-        </bitmap>
-    </item>
-
-    <item>
-        <bitmap
-            android:src="@*android:drawable/ic_menu_search"
-            android:tint="?android:attr/colorControlNormal">
-        </bitmap>
-    </item>
-
-</selector>
diff --git a/packages/PrintSpooler/res/menu/select_printer_activity.xml b/packages/PrintSpooler/res/menu/select_printer_activity.xml
index 8da5769..15cc139 100644
--- a/packages/PrintSpooler/res/menu/select_printer_activity.xml
+++ b/packages/PrintSpooler/res/menu/select_printer_activity.xml
@@ -19,7 +19,7 @@
     <item
         android:id="@+id/action_search"
         android:title="@string/search"
-        android:icon="@*android:drawable/ic_search"
+        android:icon="@*android:drawable/ic_search_api_material"
         android:actionViewClass="android.widget.SearchView"
         android:showAsAction="ifRoom|collapseActionView"
         android:alphabeticShortcut="f"
@@ -29,7 +29,7 @@
     <item
         android:id="@+id/action_add_printer"
         android:title="@string/print_add_printer"
-        android:icon="@*android:drawable/create_contact"
+        android:icon="@drawable/ic_add"
         android:showAsAction="ifRoom"
         android:alphabeticShortcut="a">
     </item>
diff --git a/packages/PrintSpooler/res/values-af/strings.xml b/packages/PrintSpooler/res/values-af/strings.xml
index 1c39a7d..cf13374 100644
--- a/packages/PrintSpooler/res/values-af/strings.xml
+++ b/packages/PrintSpooler/res/values-af/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Kies drukdiens"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Soek tans vir drukkers"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Geen drukdienste is geaktiveer nie"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Geen drukkers gekry nie"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Druk tans <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Kanselleer tans <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-am/strings.xml b/packages/PrintSpooler/res/values-am/strings.xml
index 4d8b85e..18c90f5 100644
--- a/packages/PrintSpooler/res/values-am/strings.xml
+++ b/packages/PrintSpooler/res/values-am/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"የህትመት አገልግሎት ይምረጡ"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"አታሚዎችን በመፈለግ ላይ"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ምንም የህትመት አገልግሎቶች አልነቁም"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"ምንም አታሚዎች አልተገኙም"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>ን በማተም ላይ"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>ን በመተው ላይ"</string>
diff --git a/packages/PrintSpooler/res/values-ar/strings.xml b/packages/PrintSpooler/res/values-ar/strings.xml
index 0fa6ec2..2d87498c 100644
--- a/packages/PrintSpooler/res/values-ar/strings.xml
+++ b/packages/PrintSpooler/res/values-ar/strings.xml
@@ -64,6 +64,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"اختر خدمة طباعة"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"البحث عن طابعات"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"لم يتم تمكين أي خدمات طباعة"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"لم يتم العثور على طابعات"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"جارٍ طباعة <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"جارٍ إلغاء <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-az-rAZ/strings.xml b/packages/PrintSpooler/res/values-az-rAZ/strings.xml
index 1837db4..c8ca06c 100644
--- a/packages/PrintSpooler/res/values-az-rAZ/strings.xml
+++ b/packages/PrintSpooler/res/values-az-rAZ/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Çap xidmətini seçin"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Printer axtarılır"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Heç bir çap xidməti aktiv edilməyib"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Heç bir printer tapılmadı"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> çap edilir"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ləğv edilir"</string>
diff --git a/packages/PrintSpooler/res/values-bg/strings.xml b/packages/PrintSpooler/res/values-bg/strings.xml
index 9a8ccef..7129cc1 100644
--- a/packages/PrintSpooler/res/values-bg/strings.xml
+++ b/packages/PrintSpooler/res/values-bg/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Избиране на услуга за отпечатване"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Търсене на принтери"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Няма активирани услуги за отпечатване"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Няма намерени принтери"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"„<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>“ се отпечатва"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"„<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>“ се анулира"</string>
diff --git a/packages/PrintSpooler/res/values-bn-rBD/strings.xml b/packages/PrintSpooler/res/values-bn-rBD/strings.xml
index 4f1646d..ae0b01c 100644
--- a/packages/PrintSpooler/res/values-bn-rBD/strings.xml
+++ b/packages/PrintSpooler/res/values-bn-rBD/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"মুদ্রণ পরিষেবা চয়ন করুন"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"মুদ্রকগুলি অনুসন্ধান করা হচ্ছে"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"মুদ্রণ পরিষেবা সক্ষম নেই"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"কোনো মুদ্রক পাওয়া যায়নি"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> মুদ্রণ করা হচ্ছে"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> বাতিল করা হচ্ছে"</string>
diff --git a/packages/PrintSpooler/res/values-ca/strings.xml b/packages/PrintSpooler/res/values-ca/strings.xml
index fa34c52..d221c6c 100644
--- a/packages/PrintSpooler/res/values-ca/strings.xml
+++ b/packages/PrintSpooler/res/values-ca/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Selecció del servei d\'impressió"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Cerca d\'impressores"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"No hi ha cap servei d\'impressió activat"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"No s\'ha trobat cap impressora"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"S\'està imprimint <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"S\'està cancel·lant <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-cs/strings.xml b/packages/PrintSpooler/res/values-cs/strings.xml
index 5c98d616..5396b3e 100644
--- a/packages/PrintSpooler/res/values-cs/strings.xml
+++ b/packages/PrintSpooler/res/values-cs/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Zvolte službu tisku"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Vyhledávání tiskáren"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nejsou aktivovány žádné tiskové služby"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nebyly nalezeny žádné tiskárny"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Tisk úlohy <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Rušení úlohy <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-da/strings.xml b/packages/PrintSpooler/res/values-da/strings.xml
index e57d435..484d66f 100644
--- a/packages/PrintSpooler/res/values-da/strings.xml
+++ b/packages/PrintSpooler/res/values-da/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Vælg udskriftstjeneste"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Søger efter printere"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ingen udskrivningstjenester er aktiveret"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Der blev ikke fundet nogen printere"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> udskrives"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> annulleres"</string>
diff --git a/packages/PrintSpooler/res/values-de/strings.xml b/packages/PrintSpooler/res/values-de/strings.xml
index 1005b45..c6323ef 100644
--- a/packages/PrintSpooler/res/values-de/strings.xml
+++ b/packages/PrintSpooler/res/values-de/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Druckdienst auswählen"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Suche nach Druckern"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Keine Druckdienste aktiviert"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Keine Drucker gefunden"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> wird gedruckt..."</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> wird abgebrochen..."</string>
diff --git a/packages/PrintSpooler/res/values-el/strings.xml b/packages/PrintSpooler/res/values-el/strings.xml
index 75b8447..85923b7 100644
--- a/packages/PrintSpooler/res/values-el/strings.xml
+++ b/packages/PrintSpooler/res/values-el/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Επιλέξτε υπηρεσία εκτύπωσης"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Αναζήτηση για εκτυπωτές"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Δεν έχουν ενεργοποιηθεί υπηρεσίες εκτύπωσης"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Δεν βρέθηκαν εκτυπωτές"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Εκτύπωση <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Ακύρωση <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-en-rAU/strings.xml b/packages/PrintSpooler/res/values-en-rAU/strings.xml
index 87349c2..5ac14a3 100644
--- a/packages/PrintSpooler/res/values-en-rAU/strings.xml
+++ b/packages/PrintSpooler/res/values-en-rAU/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Choose print service"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Searching for printers"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"No print services enabled"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"No printers found"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Printing <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelling <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-en-rGB/strings.xml b/packages/PrintSpooler/res/values-en-rGB/strings.xml
index 87349c2..5ac14a3 100644
--- a/packages/PrintSpooler/res/values-en-rGB/strings.xml
+++ b/packages/PrintSpooler/res/values-en-rGB/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Choose print service"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Searching for printers"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"No print services enabled"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"No printers found"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Printing <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelling <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-en-rIN/strings.xml b/packages/PrintSpooler/res/values-en-rIN/strings.xml
index 87349c2..5ac14a3 100644
--- a/packages/PrintSpooler/res/values-en-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-en-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Choose print service"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Searching for printers"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"No print services enabled"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"No printers found"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Printing <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelling <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-es-rUS/strings.xml b/packages/PrintSpooler/res/values-es-rUS/strings.xml
index ffd4d79..1876ae1 100644
--- a/packages/PrintSpooler/res/values-es-rUS/strings.xml
+++ b/packages/PrintSpooler/res/values-es-rUS/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Elegir servicio de impresión"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Buscando impresoras"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"No hay servicios de impresión habilitados"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"No se encontraron impresoras"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Imprimiendo <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelando <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-es/strings.xml b/packages/PrintSpooler/res/values-es/strings.xml
index 5660d1b..14ed0d8 100644
--- a/packages/PrintSpooler/res/values-es/strings.xml
+++ b/packages/PrintSpooler/res/values-es/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Seleccionar servicio de impresión"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Buscando impresoras"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"No hay servicios de impresión habilitados"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"No se encontraron impresoras"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Imprimiendo <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelando <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-et-rEE/strings.xml b/packages/PrintSpooler/res/values-et-rEE/strings.xml
index fb0f320..c284332 100644
--- a/packages/PrintSpooler/res/values-et-rEE/strings.xml
+++ b/packages/PrintSpooler/res/values-et-rEE/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Prinditeenuse valimine"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Printerite otsimine"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ühtegi printimisteenust pole lubatud"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Printereid ei leitud"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Prinditöö <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> printimine"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Prinditöö <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> tühistamine"</string>
diff --git a/packages/PrintSpooler/res/values-eu-rES/strings.xml b/packages/PrintSpooler/res/values-eu-rES/strings.xml
index 8402a9c..eab7587 100644
--- a/packages/PrintSpooler/res/values-eu-rES/strings.xml
+++ b/packages/PrintSpooler/res/values-eu-rES/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Aukeratu inprimatze-zerbitzua"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Inprimagailuak bilatzen"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ez dago gaituta inprimatzeko zerbitzurik"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Ez da inprimagailurik aurkitu"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> inprimatzen"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> bertan behera uzten"</string>
@@ -75,7 +76,7 @@
     <string name="reason_unknown" msgid="5507940196503246139">"ezezaguna"</string>
     <string name="printer_unavailable" msgid="2434170617003315690">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>: ez dago erabilgarri"</string>
     <string name="print_service_security_warning_title" msgid="2160752291246775320">"<xliff:g id="SERVICE">%1$s</xliff:g> erabili nahi duzu?"</string>
-    <string name="print_service_security_warning_summary" msgid="1427434625361692006">"Baliteke dokumentuak zerbitzari bat edo gehiagotan zehar igarotzea inprimagailurako bidean."</string>
+    <string name="print_service_security_warning_summary" msgid="1427434625361692006">"Baliteke dokumentuak zerbitzari batean edo gehiagotan zehar igarotzea inprimagailurako bidean."</string>
   <string-array name="color_mode_labels">
     <item msgid="7602948745415174937">"Zuri-beltza"</item>
     <item msgid="2762241247228983754">"Koloretakoa"</item>
diff --git a/packages/PrintSpooler/res/values-fa/strings.xml b/packages/PrintSpooler/res/values-fa/strings.xml
index ba78460..156eb47 100644
--- a/packages/PrintSpooler/res/values-fa/strings.xml
+++ b/packages/PrintSpooler/res/values-fa/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"انتخاب سرویس چاپ"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"درحال جستجوی چاپگرها"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"هیچ خدمات چاپی فعال نیست"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"هیچ چاپگری یافت نشد"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"در حال چاپ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"در حال لغو <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-fi/strings.xml b/packages/PrintSpooler/res/values-fi/strings.xml
index 3a82702..887d428 100644
--- a/packages/PrintSpooler/res/values-fi/strings.xml
+++ b/packages/PrintSpooler/res/values-fi/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Valitse tulostuspalvelu"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Etsitään tulostimia"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ei käytössä olevia tulostuspalveluita"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Tulostimia ei löydy"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Tulostetaan <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Peruutetaan työ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-fr-rCA/strings.xml b/packages/PrintSpooler/res/values-fr-rCA/strings.xml
index f49885a..a97b20a 100644
--- a/packages/PrintSpooler/res/values-fr-rCA/strings.xml
+++ b/packages/PrintSpooler/res/values-fr-rCA/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Sélectionner le service d\'impression"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Recherche d\'imprimantes en cours..."</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Aucun service d\'impression activé"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Aucune imprimante trouvée"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Impression de <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> en cours…"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Annulation de « <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> »…"</string>
diff --git a/packages/PrintSpooler/res/values-fr/strings.xml b/packages/PrintSpooler/res/values-fr/strings.xml
index 4dcfa65..726915b 100644
--- a/packages/PrintSpooler/res/values-fr/strings.xml
+++ b/packages/PrintSpooler/res/values-fr/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Sélectionner le service d\'impression"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Recherche d\'imprimantes en cours"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Aucun service d\'impression activé"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Aucune imprimante trouvée"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Impression de \"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>\" en cours…"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Annulation de \"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>\" en cours…"</string>
diff --git a/packages/PrintSpooler/res/values-gl-rES/strings.xml b/packages/PrintSpooler/res/values-gl-rES/strings.xml
index c805e30..6a2d031 100644
--- a/packages/PrintSpooler/res/values-gl-rES/strings.xml
+++ b/packages/PrintSpooler/res/values-gl-rES/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Escoller servizo de impresión"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Busca de impresoras"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Non hai servizos de impresión activados"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Non se atopou ningunha impresora"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Imprimindo <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelando <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-gu-rIN/strings.xml b/packages/PrintSpooler/res/values-gu-rIN/strings.xml
index 51820f2..3b3d2ed 100644
--- a/packages/PrintSpooler/res/values-gu-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-gu-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"પ્રિન્ટ સેવા પસંદ કરો"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"પ્રિન્ટર્સ માટે શોધી રહ્યું છે"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"કોઈ છાપ સેવાઓ સક્ષમ કરેલ નથી"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"કોઈ પ્રિન્ટર મળ્યા નથી"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> છાપી રહ્યાં છે"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ને રદ કરી રહ્યું છે"</string>
diff --git a/packages/PrintSpooler/res/values-hi/strings.xml b/packages/PrintSpooler/res/values-hi/strings.xml
index e2bc012..162f65b 100644
--- a/packages/PrintSpooler/res/values-hi/strings.xml
+++ b/packages/PrintSpooler/res/values-hi/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"प्रिंट सेवा चुनें"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"प्रिंटर खोज रहा है"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"कोई भी प्रिंट सेवा सक्षम नहीं है"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"कोई प्रिंटर नहीं मिले"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> प्रिंट हो रहा है"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> रद्द हो रहा है"</string>
diff --git a/packages/PrintSpooler/res/values-hr/strings.xml b/packages/PrintSpooler/res/values-hr/strings.xml
index 64c4a58..9276300 100644
--- a/packages/PrintSpooler/res/values-hr/strings.xml
+++ b/packages/PrintSpooler/res/values-hr/strings.xml
@@ -61,6 +61,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Odaberite uslugu ispisa"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Traženje pisača"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nije omogućena nijedna usluga ispisa"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nije pronađen nijedan pisač"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Ispisivanje <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Otkazivanje zadatka <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-hu/strings.xml b/packages/PrintSpooler/res/values-hu/strings.xml
index 58e7852..ca48f9a 100644
--- a/packages/PrintSpooler/res/values-hu/strings.xml
+++ b/packages/PrintSpooler/res/values-hu/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Nyomtatási szolgáltatás kiválasztása"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Nyomtatók keresése"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nincs engedélyezett nyomtatási szolgáltatás"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nem található nyomtató"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"A(z) <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> nyomtatása"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"A(z) <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> törlése"</string>
diff --git a/packages/PrintSpooler/res/values-hy-rAM/strings.xml b/packages/PrintSpooler/res/values-hy-rAM/strings.xml
index 88e9192..a198277 100644
--- a/packages/PrintSpooler/res/values-hy-rAM/strings.xml
+++ b/packages/PrintSpooler/res/values-hy-rAM/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Ընտրեք տպելու ծառայությունը"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Տպիչների որոնում"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ակտիվացված տպման ծառայություններ չկան"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Տպիչներ չեն գտնվել"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Տպվում է՝ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>-ը չեղարկվում է"</string>
diff --git a/packages/PrintSpooler/res/values-in/strings.xml b/packages/PrintSpooler/res/values-in/strings.xml
index de76536..5050700 100644
--- a/packages/PrintSpooler/res/values-in/strings.xml
+++ b/packages/PrintSpooler/res/values-in/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Pilih layanan cetak"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Mencari printer"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Tidak ada layanan cetak yang aktif"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Tidak ditemukan printer"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Mencetak <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Membatalkan <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-is-rIS/strings.xml b/packages/PrintSpooler/res/values-is-rIS/strings.xml
index 3f8aa65..33f10f5 100644
--- a/packages/PrintSpooler/res/values-is-rIS/strings.xml
+++ b/packages/PrintSpooler/res/values-is-rIS/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Veldu prentþjónustu"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Leitar að prentara"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Engin prentþjónusta er virk"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Engir prentarar fundust"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Prentar <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Hættir við <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-it/strings.xml b/packages/PrintSpooler/res/values-it/strings.xml
index 394dc88..f7c6eff 100644
--- a/packages/PrintSpooler/res/values-it/strings.xml
+++ b/packages/PrintSpooler/res/values-it/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Scegli servizio di stampa"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Ricerca di stampanti"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Non è stato attivato alcun servizio di stampa"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nessuna stampante trovata"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Stampa di <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Annullamento di <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-iw/strings.xml b/packages/PrintSpooler/res/values-iw/strings.xml
index 5c5e5d9..545ba88 100644
--- a/packages/PrintSpooler/res/values-iw/strings.xml
+++ b/packages/PrintSpooler/res/values-iw/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"בחר שירות הדפסה"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"מחפש מדפסות"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"לא הופעלו שירותי הדפסה"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"לא נמצאו מדפסות"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"מדפיס את <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"מבטל את <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-ja/strings.xml b/packages/PrintSpooler/res/values-ja/strings.xml
index 6a396b3..e292013 100644
--- a/packages/PrintSpooler/res/values-ja/strings.xml
+++ b/packages/PrintSpooler/res/values-ja/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"印刷サービスの選択"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"プリンタの検索中"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"使用できる印刷サービスがありません"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"プリンタが見つかりません"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>を印刷しています"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>をキャンセルしています"</string>
diff --git a/packages/PrintSpooler/res/values-ka-rGE/strings.xml b/packages/PrintSpooler/res/values-ka-rGE/strings.xml
index 44e77d7..db71506 100644
--- a/packages/PrintSpooler/res/values-ka-rGE/strings.xml
+++ b/packages/PrintSpooler/res/values-ka-rGE/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"აირჩიეთ ბეჭდვის სერვისი"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"მიმდინარეობს პრინტერების ძიება"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ბეჭდვის სერვისები გააქტიურებული არ არის"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"პრინტერები ვერ მოიძებნა"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"იბეჭდება <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"მიმდინარეობს <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>-ის გაუქმება"</string>
diff --git a/packages/PrintSpooler/res/values-kk-rKZ/strings.xml b/packages/PrintSpooler/res/values-kk-rKZ/strings.xml
index a79a511..de2115a 100644
--- a/packages/PrintSpooler/res/values-kk-rKZ/strings.xml
+++ b/packages/PrintSpooler/res/values-kk-rKZ/strings.xml
@@ -60,6 +60,8 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Принтер қызметін таңдау"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Принтерлерді іздеу"</string>
+    <!-- no translation found for print_no_print_services (8561247706423327966) -->
+    <skip />
     <string name="print_no_printers" msgid="4869403323900054866">"Ешқандай принтер табылмады"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> басып шығарылуда"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> жұмысын тоқтатуда"</string>
diff --git a/packages/PrintSpooler/res/values-km-rKH/strings.xml b/packages/PrintSpooler/res/values-km-rKH/strings.xml
index 87f4fde..c91e6ae 100644
--- a/packages/PrintSpooler/res/values-km-rKH/strings.xml
+++ b/packages/PrintSpooler/res/values-km-rKH/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"ជ្រើស​សេវា​បោះពុម្ព"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"ស្វែងរក​ម៉ាស៊ីន​បោះពុម្ព"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"គ្មានការបើកដំណើរការសេវាបោះពុម្ពទេ"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"រក​មិន​ឃើញ​ម៉ាស៊ីន​បោះពុម្ព"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"កំពុង​​បោះពុម្ព <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"ការ​បោះបង់ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-kn-rIN/strings.xml b/packages/PrintSpooler/res/values-kn-rIN/strings.xml
index eff1127..86dc11f 100644
--- a/packages/PrintSpooler/res/values-kn-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-kn-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"ಮುದ್ರಣ ಸೇವೆಯನ್ನು ಆಯ್ಕೆಮಾಡಿ"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"ಪ್ರಿಂಟರ್‌‌ಗಳಿಗಾಗಿ ಹುಡುಕಲಾಗುತ್ತಿದೆ"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ಯಾವುದೇ ಮುದ್ರಣ ಸೇವೆಗಳನ್ನು ಸಕ್ರಿಯಗೊಳಿಸಿಲ್ಲ"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"ಯಾವುದೇ ಮುದ್ರಕಗಳು ಕಂಡುಬಂದಿಲ್ಲ"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ಮುದ್ರಿಸಲಾಗುತ್ತಿದೆ"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ರದ್ದು ಮಾಡಲಾಗುತ್ತಿದೆ"</string>
diff --git a/packages/PrintSpooler/res/values-ko/strings.xml b/packages/PrintSpooler/res/values-ko/strings.xml
index 7613ad7..4450bca 100644
--- a/packages/PrintSpooler/res/values-ko/strings.xml
+++ b/packages/PrintSpooler/res/values-ko/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"인쇄 서비스 선택"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"프린터 검색 중"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"사용 가능한 프린트 서비스 없음"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"프린터 없음"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> 인쇄 중"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> 취소 중"</string>
diff --git a/packages/PrintSpooler/res/values-ky-rKG/strings.xml b/packages/PrintSpooler/res/values-ky-rKG/strings.xml
index 2ea1b57..b4bdc57 100644
--- a/packages/PrintSpooler/res/values-ky-rKG/strings.xml
+++ b/packages/PrintSpooler/res/values-ky-rKG/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Принтер кызматын тандоо"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Принтерлер изделүүдө"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Принтер-кызматтары иштетилген эмес"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Принтерлер табылган жок"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> басылууда"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> токтотулууда"</string>
diff --git a/packages/PrintSpooler/res/values-lo-rLA/strings.xml b/packages/PrintSpooler/res/values-lo-rLA/strings.xml
index 511a72f..500f01c 100644
--- a/packages/PrintSpooler/res/values-lo-rLA/strings.xml
+++ b/packages/PrintSpooler/res/values-lo-rLA/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"ເລືອກບໍລິການການພິມ"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"ກຳລັງຊອກຫາເຄື່ອງພິມ"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ບໍ່​ມີ​ການ​ບໍ​ລິ​ການ​ພິມ​ເປີດ​ໃຊ້​ງານ​ໄວ້"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"ບໍ່ພົບເຄື່ອງພິມ"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"ກຳລັງພິມ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"ກຳລັງຍົກເລີກ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-lt/strings.xml b/packages/PrintSpooler/res/values-lt/strings.xml
index ce912be..ad59182 100644
--- a/packages/PrintSpooler/res/values-lt/strings.xml
+++ b/packages/PrintSpooler/res/values-lt/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Pasirinkite spausdinimo paslaugą"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Ieškoma spausdintuvų"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Neįgalinta jokių spausdinimo paslaugų"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nerasta spausdintuvų"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Spausdinama: <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Atšaukiama: <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-lv/strings.xml b/packages/PrintSpooler/res/values-lv/strings.xml
index bfba6c8..3b30d04 100644
--- a/packages/PrintSpooler/res/values-lv/strings.xml
+++ b/packages/PrintSpooler/res/values-lv/strings.xml
@@ -61,6 +61,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Izvēlieties drukāšanas pakalpojumu"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Printeru meklēšana"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nav iespējots neviens drukas pakalpojums"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Netika atrasts neviens printeris."</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Notiek darba <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> drukāšana…"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Pārtrauc drukas darbu <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>…"</string>
diff --git a/packages/PrintSpooler/res/values-mk-rMK/strings.xml b/packages/PrintSpooler/res/values-mk-rMK/strings.xml
index a81db01..42548fc 100644
--- a/packages/PrintSpooler/res/values-mk-rMK/strings.xml
+++ b/packages/PrintSpooler/res/values-mk-rMK/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Избери услуга печатење"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Пребарување печатачи"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Нема овозможени услуги за печатење"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Не се пронајдени печатачи"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> се печати"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> се откажува"</string>
diff --git a/packages/PrintSpooler/res/values-ml-rIN/strings.xml b/packages/PrintSpooler/res/values-ml-rIN/strings.xml
index c14c5ad..4e5a99c 100644
--- a/packages/PrintSpooler/res/values-ml-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-ml-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"പ്രിന്റ് സേവനം തിരഞ്ഞെടുക്കുക"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"പ്രിന്ററുകൾക്കായി തിരയുന്നു"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"പ്രിന്റ് സേവനങ്ങളൊന്നും പ്രവർത്തനക്ഷമാക്കിയിട്ടില്ല"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"പ്രിന്ററുകളൊന്നും കണ്ടെത്തിയില്ല"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> പ്രിന്റുചെയ്യുന്നു"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> റദ്ദാക്കുന്നു"</string>
diff --git a/packages/PrintSpooler/res/values-mn-rMN/strings.xml b/packages/PrintSpooler/res/values-mn-rMN/strings.xml
index 789f085..0f49671 100644
--- a/packages/PrintSpooler/res/values-mn-rMN/strings.xml
+++ b/packages/PrintSpooler/res/values-mn-rMN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Хэвлэх үйлчилгээг сонгох"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Принтер хайж байна"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Хэвлэх үйлчилгээг идэвхжүүлээгүй"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Принтер олдсонгүй"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Хэвлэж байна <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Цуцлаж байна <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-mr-rIN/strings.xml b/packages/PrintSpooler/res/values-mr-rIN/strings.xml
index 1d859cf..53225ee 100644
--- a/packages/PrintSpooler/res/values-mr-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-mr-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"मुद्रण सेवा निवडा"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"प्रिंटर शोधत आहे"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"कोणत्याही मुद्रण सेवा सक्षम केलेल्या नाहीत"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"कोणतेही प्रिंटर आढळले नाही"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> मुद्रण करीत आहे"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> रद्द करीत आहे"</string>
diff --git a/packages/PrintSpooler/res/values-ms-rMY/strings.xml b/packages/PrintSpooler/res/values-ms-rMY/strings.xml
index c86d0bf..a15587b 100644
--- a/packages/PrintSpooler/res/values-ms-rMY/strings.xml
+++ b/packages/PrintSpooler/res/values-ms-rMY/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Pilih perkhidmatan cetak"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Mencari pencetak"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Perkhidmatan cetak tidak didayakan"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Tiada pencetak ditemui"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Mencetak <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Membatalkan <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-my-rMM/strings.xml b/packages/PrintSpooler/res/values-my-rMM/strings.xml
index 9b2760a..10dc93a 100644
--- a/packages/PrintSpooler/res/values-my-rMM/strings.xml
+++ b/packages/PrintSpooler/res/values-my-rMM/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"စာထုတ်ရန် ဝန်ဆောင်မှုကို ရွေးချယ်ပါ"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"စာထုတ်စက်များကို ရှာနေပါသည်"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ပုံနှိပ်ထုတ်ယူရေး ဝန်ဆောင်မှုများ ဖွင့်မထားပါ"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"စာထုတ်စက် တစ်ခုမှ မတွေ့ရှိပါ"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ကို စာထုတ်နေပါသည်"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ကို ပယ်ဖျက်နေပါသည်"</string>
diff --git a/packages/PrintSpooler/res/values-nb/strings.xml b/packages/PrintSpooler/res/values-nb/strings.xml
index cdec56f..8cbcee7 100644
--- a/packages/PrintSpooler/res/values-nb/strings.xml
+++ b/packages/PrintSpooler/res/values-nb/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Velg utskriftstjeneste"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Søker etter skrivere"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ingen utskriftstjenester er slått på"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Fant ingen skrivere"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Skriver ut <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Avbryter <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-ne-rNP/strings.xml b/packages/PrintSpooler/res/values-ne-rNP/strings.xml
index 427a9ae..ad9b4e3 100644
--- a/packages/PrintSpooler/res/values-ne-rNP/strings.xml
+++ b/packages/PrintSpooler/res/values-ne-rNP/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"प्रिन्ट सेवा छनौट गर्नुहोस्"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"प्रिन्टरहरू खोज्दै"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"कुनै पनि मुद्रण सेवाहरू सक्रिय छैनन्"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"कुनै प्रिन्टरहरू भेटाइएन"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"प्रिन्ट गरिँदै <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"रद्द गरिँदै <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-nl/strings.xml b/packages/PrintSpooler/res/values-nl/strings.xml
index 12d52f9..bb8391e 100644
--- a/packages/PrintSpooler/res/values-nl/strings.xml
+++ b/packages/PrintSpooler/res/values-nl/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Afdrukservice kiezen"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Printers zoeken"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Geen afdrukservices ingeschakeld"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Geen printers gevonden"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> afdrukken"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> annuleren"</string>
diff --git a/packages/PrintSpooler/res/values-pa-rIN/strings.xml b/packages/PrintSpooler/res/values-pa-rIN/strings.xml
index b8d0602..aede004 100644
--- a/packages/PrintSpooler/res/values-pa-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-pa-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"ਪ੍ਰਿੰਟ ਸੇਵਾ ਚੁਣੋ"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"ਪ੍ਰਿੰਟਰ ਖੋਜ ਰਿਹਾ ਹੈ"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ਪ੍ਰਿੰਟ ਸੇਵਾਵਾਂ ਯੋਗ ਨਹੀਂ ਬਣਾਈਆਂ ਗਈਆਂ"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"ਕੋਈ ਪ੍ਰਿੰਟਰ ਨਹੀਂ ਮਿਲੇ"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ਨੂੰ ਪ੍ਰਿੰਟ ਕਰ ਰਿਹਾ ਹੈ"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ਨੂੰ ਰੱਦ ਕਰ ਰਿਹਾ ਹੈ"</string>
diff --git a/packages/PrintSpooler/res/values-pl/strings.xml b/packages/PrintSpooler/res/values-pl/strings.xml
index dac4b0822..4e20eed 100644
--- a/packages/PrintSpooler/res/values-pl/strings.xml
+++ b/packages/PrintSpooler/res/values-pl/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Wybierz usługę drukowania"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Szukanie drukarek"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Brak włączonych usług drukowania"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nie znaleziono drukarek"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Drukowanie: <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Anulowanie: <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-pt-rBR/strings.xml b/packages/PrintSpooler/res/values-pt-rBR/strings.xml
index b073ce1..7ab0f0a 100644
--- a/packages/PrintSpooler/res/values-pt-rBR/strings.xml
+++ b/packages/PrintSpooler/res/values-pt-rBR/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Selecione o serviço de impressão"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Procurando impressoras"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nenhum serviço de impressão ativado"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nenhuma impressora encontrada"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Imprimindo <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelando <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-pt-rPT/strings.xml b/packages/PrintSpooler/res/values-pt-rPT/strings.xml
index da512b1..583052a 100644
--- a/packages/PrintSpooler/res/values-pt-rPT/strings.xml
+++ b/packages/PrintSpooler/res/values-pt-rPT/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Escolher o serviço de impressão"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"A procurar impressoras"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nenhum serviço de impressão ativado"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nenhuma impressora encontrada"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"A imprimir <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"A cancelar <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-pt/strings.xml b/packages/PrintSpooler/res/values-pt/strings.xml
index b073ce1..7ab0f0a 100644
--- a/packages/PrintSpooler/res/values-pt/strings.xml
+++ b/packages/PrintSpooler/res/values-pt/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Selecione o serviço de impressão"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Procurando impressoras"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nenhum serviço de impressão ativado"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nenhuma impressora encontrada"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Imprimindo <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Cancelando <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-ro/strings.xml b/packages/PrintSpooler/res/values-ro/strings.xml
index 1a44182..2769aae 100644
--- a/packages/PrintSpooler/res/values-ro/strings.xml
+++ b/packages/PrintSpooler/res/values-ro/strings.xml
@@ -61,6 +61,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Alegeți serviciul de printare"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Se caută imprimante"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Niciun serviciu de printare activat"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nu au fost găsite imprimante"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Se printează <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Se anulează <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-ru/strings.xml b/packages/PrintSpooler/res/values-ru/strings.xml
index a6ef092..c3cfac0 100644
--- a/packages/PrintSpooler/res/values-ru/strings.xml
+++ b/packages/PrintSpooler/res/values-ru/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Выберите службу печати"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Поиск принтеров…"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Службы печати недоступны"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Ничего не найдено"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Печать задания \"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>\"…"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Отмена задания <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>…"</string>
diff --git a/packages/PrintSpooler/res/values-si-rLK/strings.xml b/packages/PrintSpooler/res/values-si-rLK/strings.xml
index 7520459..0e20705 100644
--- a/packages/PrintSpooler/res/values-si-rLK/strings.xml
+++ b/packages/PrintSpooler/res/values-si-rLK/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"මුද්‍රණ සේවාව තෝරන්න"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"මුද්‍රණ යන්ත්‍ර සොයමින්"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"මුද්‍රණ සේවා සබල නැත"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"මුද්‍රණ යන්ත්‍ර සොයා නොගැනුණි"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> මුද්‍රණය වේ"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"අවලංගු කෙරේ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-sk/strings.xml b/packages/PrintSpooler/res/values-sk/strings.xml
index 4575040..b8d2167 100644
--- a/packages/PrintSpooler/res/values-sk/strings.xml
+++ b/packages/PrintSpooler/res/values-sk/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Výber tlačovej služby"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Vyhľadávanie tlačiarní"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Žiadne tlačové služby nie sú aktivované"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nenašli sa žiadne tlačiarne"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Prebieha tlač úlohy <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Prebieha zrušenie úlohy <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-sl/strings.xml b/packages/PrintSpooler/res/values-sl/strings.xml
index c0dfdb4..a320e79 100644
--- a/packages/PrintSpooler/res/values-sl/strings.xml
+++ b/packages/PrintSpooler/res/values-sl/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Izberite tiskalno storitev"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Iskanje tiskalnikov"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ni omogočenih tiskalnih storitev"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Tiskalnikov ni mogoče najti"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Tiskanje: <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Preklic: <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-sq-rAL/strings.xml b/packages/PrintSpooler/res/values-sq-rAL/strings.xml
index dbbf238..177b282 100644
--- a/packages/PrintSpooler/res/values-sq-rAL/strings.xml
+++ b/packages/PrintSpooler/res/values-sq-rAL/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Zgjidh shërbimin e printimit"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Po kërkon për printerë"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Nuk ka shërbime printimi të aktivizuara"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Nuk u gjet asnjë printer"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Po printon <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Po anulon <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-sr/strings.xml b/packages/PrintSpooler/res/values-sr/strings.xml
index 5589298..f686e6d 100644
--- a/packages/PrintSpooler/res/values-sr/strings.xml
+++ b/packages/PrintSpooler/res/values-sr/strings.xml
@@ -61,6 +61,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Изаберите услугу штампања"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Претрага штампача"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Ниједна услуга штампања није омогућена"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Није пронађен ниједан штампач"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Штампа се <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Отказује се <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-sv/strings.xml b/packages/PrintSpooler/res/values-sv/strings.xml
index a97430e..6e176f03 100644
--- a/packages/PrintSpooler/res/values-sv/strings.xml
+++ b/packages/PrintSpooler/res/values-sv/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Välj utskriftstjänst"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Söker efter skrivare"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Inga utskriftstjänster har aktiverats"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Det gick inte att hitta några skrivare"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Skriver ut <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Avbryter <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-sw/strings.xml b/packages/PrintSpooler/res/values-sw/strings.xml
index f4d51bf..8ce9190 100644
--- a/packages/PrintSpooler/res/values-sw/strings.xml
+++ b/packages/PrintSpooler/res/values-sw/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Chagua huduma ya printa"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Inatafuta printa"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Huduma za kuchapisha hazijawashwa"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Hakuna printa zilizopatikana"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Inachapisha <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Inaghairi <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-ta-rIN/strings.xml b/packages/PrintSpooler/res/values-ta-rIN/strings.xml
index 4e292d2..486ddca 100644
--- a/packages/PrintSpooler/res/values-ta-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-ta-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"அச்சுப் பொறியைத் தேர்வுசெய்யவும்"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"அச்சுப்பொறிகளைத் தேடுகிறது"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"அச்சுப் பொறிகள் இல்லை"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"பிரிண்டர்கள் எதுவுமில்லை"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ஐ அச்சிடுகிறது"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> ஐ ரத்துசெய்கிறது"</string>
diff --git a/packages/PrintSpooler/res/values-te-rIN/strings.xml b/packages/PrintSpooler/res/values-te-rIN/strings.xml
index 8cb5aa6..f0f7e07 100644
--- a/packages/PrintSpooler/res/values-te-rIN/strings.xml
+++ b/packages/PrintSpooler/res/values-te-rIN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"ముద్రణ సేవను ఎంచుకోండి"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"ప్రింటర్‌ల కోసం శోధిస్తోంది"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ముద్రణ సేవలు ఏవీ ప్రారంభించలేదు"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"ప్రింటర్‌లు కనుగొనబడలేదు"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>ను ముద్రిస్తోంది"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>ను రద్దు చేస్తోంది"</string>
diff --git a/packages/PrintSpooler/res/values-th/strings.xml b/packages/PrintSpooler/res/values-th/strings.xml
index c501cf9..d3ef7c6 100644
--- a/packages/PrintSpooler/res/values-th/strings.xml
+++ b/packages/PrintSpooler/res/values-th/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"เลือกบริการพิมพ์"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"กำลังค้นหาเครื่องพิมพ์"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"ไม่ได้เปิดใช้บริการพิมพ์"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"ไม่พบเครื่องพิมพ์"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"กำลังพิมพ์ <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"กำลังยกเลิก <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-tl/strings.xml b/packages/PrintSpooler/res/values-tl/strings.xml
index 18942e2..061eeb9 100644
--- a/packages/PrintSpooler/res/values-tl/strings.xml
+++ b/packages/PrintSpooler/res/values-tl/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Pumili ng serbisyo ng pag-print"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Naghahanap ng mga printer"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Walang mga naka-enable na serbisyo sa pag-print"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Walang mga printer na nakita"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Pini-print ang <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Kinakansela ang <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-tr/strings.xml b/packages/PrintSpooler/res/values-tr/strings.xml
index a7ef18c..db203ae 100644
--- a/packages/PrintSpooler/res/values-tr/strings.xml
+++ b/packages/PrintSpooler/res/values-tr/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Yazdırma hizmetini seçin"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Yazıcılar aranıyor"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Etkin yazıcı hizmeti yok"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Yazıcı bulunamadı"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> yazdırılıyor"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> iptal ediliyor"</string>
diff --git a/packages/PrintSpooler/res/values-uk/strings.xml b/packages/PrintSpooler/res/values-uk/strings.xml
index 1e21c06..09c0555 100644
--- a/packages/PrintSpooler/res/values-uk/strings.xml
+++ b/packages/PrintSpooler/res/values-uk/strings.xml
@@ -62,6 +62,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Вибрати службу друку"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Пошук принтерів"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Немає служб друку"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Принтери не знайдено"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Завдання \"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>\" друкується"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Завдання \"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>\" скасовується"</string>
diff --git a/packages/PrintSpooler/res/values-ur-rPK/strings.xml b/packages/PrintSpooler/res/values-ur-rPK/strings.xml
index 7356cdb..44ca82b 100644
--- a/packages/PrintSpooler/res/values-ur-rPK/strings.xml
+++ b/packages/PrintSpooler/res/values-ur-rPK/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"پرنٹ سروس منتخب کریں"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"پرنٹرز تلاش کر رہا ہے"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"کوئی پرنٹ سروس فعال نہیں"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"کوئی پرنٹرز نہيں ملے"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> پرنٹ کررہا ہے"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> کو منسوخ کر رہا ہے"</string>
diff --git a/packages/PrintSpooler/res/values-uz-rUZ/strings.xml b/packages/PrintSpooler/res/values-uz-rUZ/strings.xml
index 4b11608..477e424 100644
--- a/packages/PrintSpooler/res/values-uz-rUZ/strings.xml
+++ b/packages/PrintSpooler/res/values-uz-rUZ/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Chop etish xizmatini tanlang"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Printerlar qidirilmoqda"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Hech qaysi chop etish xizmati yoqilmagan"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Printerlar topilmadi"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Chop etilmoqda: <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g> bekor qilinmoqda"</string>
diff --git a/packages/PrintSpooler/res/values-vi/strings.xml b/packages/PrintSpooler/res/values-vi/strings.xml
index af237a4..3428ec7 100644
--- a/packages/PrintSpooler/res/values-vi/strings.xml
+++ b/packages/PrintSpooler/res/values-vi/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Chọn dịch vụ in"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Đang tìm kiếm máy in"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Chưa kích hoạt dịch vụ in nào"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Không tìm thấy máy in"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"In <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Hủy <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-zh-rCN/strings.xml b/packages/PrintSpooler/res/values-zh-rCN/strings.xml
index 9e8e166..d1be250 100644
--- a/packages/PrintSpooler/res/values-zh-rCN/strings.xml
+++ b/packages/PrintSpooler/res/values-zh-rCN/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"选择打印服务"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"正在搜索打印机"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"未启用任何打印服务"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"找不到打印机"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"正在打印“<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>”"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"正在取消打印“<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>”"</string>
diff --git a/packages/PrintSpooler/res/values-zh-rHK/strings.xml b/packages/PrintSpooler/res/values-zh-rHK/strings.xml
index 41a9f8e..bca0612 100644
--- a/packages/PrintSpooler/res/values-zh-rHK/strings.xml
+++ b/packages/PrintSpooler/res/values-zh-rHK/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"選擇列印服務"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"正在搜尋打印機"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"沒有已啟用的列印服務"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"找不到打印機"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"正在列印 <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"正在取消 <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-zh-rTW/strings.xml b/packages/PrintSpooler/res/values-zh-rTW/strings.xml
index 5e391fa..c345252 100644
--- a/packages/PrintSpooler/res/values-zh-rTW/strings.xml
+++ b/packages/PrintSpooler/res/values-zh-rTW/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"選擇列印服務"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"正在搜尋印表機"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"未啟用任何列印服務"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"找不到印表機"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"正在列印 <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"正在取消 <xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values-zu/strings.xml b/packages/PrintSpooler/res/values-zu/strings.xml
index a2c3172..7ba8950 100644
--- a/packages/PrintSpooler/res/values-zu/strings.xml
+++ b/packages/PrintSpooler/res/values-zu/strings.xml
@@ -60,6 +60,7 @@
     </plurals>
     <string name="choose_print_service" msgid="3740309762324459694">"Khetha isevisi yephrinta"</string>
     <string name="print_searching_for_printers" msgid="6550424555079932867">"Isesha amaphrinta"</string>
+    <string name="print_no_print_services" msgid="8561247706423327966">"Awekho amasevisi okuphrinta enikwe amandla"</string>
     <string name="print_no_printers" msgid="4869403323900054866">"Awekho amaphrinta atholiwe"</string>
     <string name="printing_notification_title_template" msgid="295903957762447362">"Iphrinta i-<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
     <string name="cancelling_notification_title_template" msgid="1821759594704703197">"Ikhansela i-<xliff:g id="PRINT_JOB_NAME">%1$s</xliff:g>"</string>
diff --git a/packages/PrintSpooler/res/values/strings.xml b/packages/PrintSpooler/res/values/strings.xml
index 50237832..70abdf4 100644
--- a/packages/PrintSpooler/res/values/strings.xml
+++ b/packages/PrintSpooler/res/values/strings.xml
@@ -149,6 +149,9 @@
     <!-- Title for the prompt shown as a placeholder if no printers are found while not searching. [CHAR LIMIT=50] -->
     <string name="print_searching_for_printers">Searching for printers</string>
 
+    <!-- Title for the prompt shown as a placeholder if there are no print services. [CHAR LIMIT=50] -->
+    <string name="print_no_print_services">No print services enabled</string>
+
     <!-- Title for the prompt shown as a placeholder if there are no printers while searching. [CHAR LIMIT=50] -->
     <string name="print_no_printers">No printers found</string>
 
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
index 53e07e9..f409fd4 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
@@ -240,7 +240,9 @@
             throw new IllegalArgumentException(PrintManager.EXTRA_PRINT_JOB
                     + " cannot be null");
         }
-        mPrintJob.setAttributes(new PrintAttributes.Builder().build());
+        if (mPrintJob.getAttributes() == null) {
+            mPrintJob.setAttributes(new PrintAttributes.Builder().build());
+        }
 
         final IBinder adapter = extras.getBinder(PrintManager.EXTRA_PRINT_DOCUMENT_ADAPTER);
         if (adapter == null) {
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
index 3905bada..f4c15bd 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
@@ -84,6 +84,11 @@
 
     private static final String EXTRA_PRINTER_ID = "EXTRA_PRINTER_ID";
 
+    /**
+     * If there are any enabled print services
+     */
+    private boolean mHasEnabledPrintServices;
+
     private final ArrayList<PrintServiceInfo> mAddPrinterServices =
             new ArrayList<>();
 
@@ -175,10 +180,6 @@
             }
         });
 
-        if (mAddPrinterServices.isEmpty()) {
-            menu.removeItem(R.id.action_add_printer);
-        }
-
         return true;
     }
 
@@ -230,6 +231,7 @@
     public void onResume() {
         super.onResume();
         updateServicesWithAddPrinterActivity();
+        updateEmptyView((DestinationAdapter)mListView.getAdapter());
         invalidateOptionsMenu();
     }
 
@@ -258,6 +260,7 @@
     }
 
     private void updateServicesWithAddPrinterActivity() {
+        mHasEnabledPrintServices = true;
         mAddPrinterServices.clear();
 
         // Get all enabled print services.
@@ -266,6 +269,7 @@
 
         // No enabled print services - done.
         if (enabledServices.isEmpty()) {
+            mHasEnabledPrintServices = false;
             return;
         }
 
@@ -324,7 +328,10 @@
         }
         TextView titleView = (TextView) findViewById(R.id.title);
         View progressBar = findViewById(R.id.progress_bar);
-        if (adapter.getUnfilteredCount() <= 0) {
+        if (!mHasEnabledPrintServices) {
+            titleView.setText(R.string.print_no_print_services);
+            progressBar.setVisibility(View.GONE);
+        } else if (adapter.getUnfilteredCount() <= 0) {
             titleView.setText(R.string.print_searching_for_printers);
             progressBar.setVisibility(View.VISIBLE);
         } else {
diff --git a/packages/SettingsLib/res/values/strings.xml b/packages/SettingsLib/res/values/strings.xml
index 9e48849..a37196e 100644
--- a/packages/SettingsLib/res/values/strings.xml
+++ b/packages/SettingsLib/res/values/strings.xml
@@ -348,4 +348,7 @@
     <!-- Header for items under the work user [CHAR LIMIT=30] -->
     <string name="category_work">Work</string>
 
+    <!-- Full package name of OEM preferred device feedback reporter. Leave this blank, overlaid in Settings/TvSettings [DO NOT TRANSLATE] -->
+    <string name="oem_preferred_feedback_reporter" translatable="false" />
+
 </resources>
diff --git a/packages/SettingsLib/src/com/android/settingslib/DeviceInfoUtils.java b/packages/SettingsLib/src/com/android/settingslib/DeviceInfoUtils.java
new file mode 100644
index 0000000..ff1c866
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/DeviceInfoUtils.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settingslib;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.os.Build;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.util.Log;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class DeviceInfoUtils {
+    private static final String TAG = "DeviceInfoUtils";
+
+    private static final String FILENAME_PROC_VERSION = "/proc/version";
+    private static final String FILENAME_MSV = "/sys/board_properties/soc/msv";
+
+    /**
+     * Reads a line from the specified file.
+     * @param filename the file to read from
+     * @return the first line, if any.
+     * @throws IOException if the file couldn't be read
+     */
+    private static String readLine(String filename) throws IOException {
+        BufferedReader reader = new BufferedReader(new FileReader(filename), 256);
+        try {
+            return reader.readLine();
+        } finally {
+            reader.close();
+        }
+    }
+
+    public static String getFormattedKernelVersion() {
+        try {
+            return formatKernelVersion(readLine(FILENAME_PROC_VERSION));
+        } catch (IOException e) {
+            Log.e(TAG, "IO Exception when getting kernel version for Device Info screen",
+                    e);
+
+            return "Unavailable";
+        }
+    }
+
+    public static String formatKernelVersion(String rawKernelVersion) {
+        // Example (see tests for more):
+        // Linux version 3.0.31-g6fb96c9 (android-build@xxx.xxx.xxx.xxx.com) \
+        //     (gcc version 4.6.x-xxx 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT \
+        //     Thu Jun 28 11:02:39 PDT 2012
+
+        final String PROC_VERSION_REGEX =
+                "Linux version (\\S+) " + /* group 1: "3.0.31-g6fb96c9" */
+                "\\((\\S+?)\\) " +        /* group 2: "x@y.com" (kernel builder) */
+                "(?:\\(gcc.+? \\)) " +    /* ignore: GCC version information */
+                "(#\\d+) " +              /* group 3: "#1" */
+                "(?:.*?)?" +              /* ignore: optional SMP, PREEMPT, and any CONFIG_FLAGS */
+                "((Sun|Mon|Tue|Wed|Thu|Fri|Sat).+)"; /* group 4: "Thu Jun 28 11:02:39 PDT 2012" */
+
+        Matcher m = Pattern.compile(PROC_VERSION_REGEX).matcher(rawKernelVersion);
+        if (!m.matches()) {
+            Log.e(TAG, "Regex did not match on /proc/version: " + rawKernelVersion);
+            return "Unavailable";
+        } else if (m.groupCount() < 4) {
+            Log.e(TAG, "Regex match on /proc/version only returned " + m.groupCount()
+                    + " groups");
+            return "Unavailable";
+        }
+        return m.group(1) + "\n" +                 // 3.0.31-g6fb96c9
+                m.group(2) + " " + m.group(3) + "\n" + // x@y.com #1
+                m.group(4);                            // Thu Jun 28 11:02:39 PDT 2012
+    }
+
+    /**
+     * Returns " (ENGINEERING)" if the msv file has a zero value, else returns "".
+     * @return a string to append to the model number description.
+     */
+    public static String getMsvSuffix() {
+        // Production devices should have a non-zero value. If we can't read it, assume it's a
+        // production device so that we don't accidentally show that it's an ENGINEERING device.
+        try {
+            String msv = readLine(FILENAME_MSV);
+            // Parse as a hex number. If it evaluates to a zero, then it's an engineering build.
+            if (Long.parseLong(msv, 16) == 0) {
+                return " (ENGINEERING)";
+            }
+        } catch (IOException|NumberFormatException e) {
+            // Fail quietly, as the file may not exist on some devices, or may be unreadable
+        }
+        return "";
+    }
+
+    public static String getFeedbackReporterPackage(Context context) {
+        final String feedbackReporter =
+                context.getResources().getString(R.string.oem_preferred_feedback_reporter);
+        if (TextUtils.isEmpty(feedbackReporter)) {
+            // Reporter not configured. Return.
+            return feedbackReporter;
+        }
+        // Additional checks to ensure the reporter is on system image, and reporter is
+        // configured to listen to the intent. Otherwise, dont show the "send feedback" option.
+        final Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
+
+        PackageManager pm = context.getPackageManager();
+        List<ResolveInfo> resolvedPackages =
+                pm.queryIntentActivities(intent, PackageManager.GET_RESOLVED_FILTER);
+        for (ResolveInfo info : resolvedPackages) {
+            if (info.activityInfo != null) {
+                if (!TextUtils.isEmpty(info.activityInfo.packageName)) {
+                    try {
+                        ApplicationInfo ai =
+                                pm.getApplicationInfo(info.activityInfo.packageName, 0);
+                        if ((ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
+                            // Package is on the system image
+                            if (TextUtils.equals(
+                                    info.activityInfo.packageName, feedbackReporter)) {
+                                return feedbackReporter;
+                            }
+                        }
+                    } catch (PackageManager.NameNotFoundException e) {
+                        // No need to do anything here.
+                    }
+                }
+            }
+        }
+        return null;
+    }
+
+    public static String getSecurityPatch() {
+        String patch = Build.VERSION.SECURITY_PATCH;
+        if (!"".equals(patch)) {
+            try {
+                SimpleDateFormat template = new SimpleDateFormat("yyyy-MM-dd");
+                Date patchDate = template.parse(patch);
+                String format = DateFormat.getBestDateTimePattern(Locale.getDefault(), "dMMMMyyyy");
+                patch = DateFormat.format(format, patchDate).toString();
+            } catch (ParseException e) {
+                // broken parse; fall through and use the raw string
+            }
+            return patch;
+        } else {
+            return null;
+        }
+    }
+
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
index e4b1ed8..d994841 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
@@ -808,7 +808,12 @@
             // The pairing dialog now warns of phone-book access for paired devices.
             // No separate prompt is displayed after pairing.
             if (getPhonebookPermissionChoice() == CachedBluetoothDevice.ACCESS_UNKNOWN) {
-                setPhonebookPermissionChoice(CachedBluetoothDevice.ACCESS_ALLOWED);
+                if (mDevice.getBluetoothClass().getDeviceClass()
+                        == BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE) {
+                    setPhonebookPermissionChoice(CachedBluetoothDevice.ACCESS_ALLOWED);
+                } else {
+                    setPhonebookPermissionChoice(CachedBluetoothDevice.ACCESS_REJECTED);
+                }
             }
         }
     }
diff --git a/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java b/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
index f5fc698..6102bef 100644
--- a/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
+++ b/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
@@ -18,6 +18,7 @@
 import android.annotation.LayoutRes;
 import android.annotation.Nullable;
 import android.app.Activity;
+import android.content.res.TypedArray;
 import android.os.Bundle;
 import android.support.v4.widget.DrawerLayout;
 import android.util.Pair;
@@ -54,6 +55,13 @@
             return;
         }
         Toolbar toolbar = (Toolbar) findViewById(R.id.action_bar);
+        TypedArray theme = getTheme().obtainStyledAttributes(android.R.styleable.Theme);
+        if (theme.getBoolean(android.R.styleable.Theme_windowNoTitle, false)) {
+            toolbar.setVisibility(View.GONE);
+            mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
+            mDrawerLayout = null;
+            return;
+        }
         setActionBar(toolbar);
         mDrawerAdapter = new SettingsDrawerAdapter(this);
         ListView listView = (ListView) findViewById(R.id.left_drawer);
diff --git a/packages/SystemUI/res/anim/recents_fast_toggle_app_home_exit.xml b/packages/SystemUI/res/anim/recents_fast_toggle_app_home_exit.xml
new file mode 100644
index 0000000..69edcc7
--- /dev/null
+++ b/packages/SystemUI/res/anim/recents_fast_toggle_app_home_exit.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2012, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+<!-- Recents Activity -->
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+     android:shareInterpolator="false"
+     android:zAdjustment="top">
+  <alpha android:fromAlpha="1.0" android:toAlpha="1.0"
+         android:fillEnabled="true"
+         android:fillBefore="true" android:fillAfter="true"
+         android:duration="250"/>
+</set>
diff --git a/packages/SystemUI/src/com/android/systemui/recents/Recents.java b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
index bf5417d..95f1eb2 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/Recents.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
@@ -27,6 +27,7 @@
 import android.os.RemoteException;
 import android.os.SystemProperties;
 import android.os.UserHandle;
+import android.provider.Settings;
 import android.util.Log;
 import android.view.Display;
 import android.view.View;
@@ -193,6 +194,12 @@
      */
     @Override
     public void showRecents(boolean triggeredFromAltTab, View statusBarView) {
+        // Ensure the device has been provisioned before allowing the user to interact with
+        // recents
+        if (!isDeviceProvisioned()) {
+            return;
+        }
+
         if (proxyToOverridePackage(ACTION_SHOW_RECENTS)) {
             return;
         }
@@ -222,6 +229,12 @@
      */
     @Override
     public void hideRecents(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) {
+        // Ensure the device has been provisioned before allowing the user to interact with
+        // recents
+        if (!isDeviceProvisioned()) {
+            return;
+        }
+
         if (proxyToOverridePackage(ACTION_HIDE_RECENTS)) {
             return;
         }
@@ -251,6 +264,12 @@
      */
     @Override
     public void toggleRecents(Display display, int layoutDirection, View statusBarView) {
+        // Ensure the device has been provisioned before allowing the user to interact with
+        // recents
+        if (!isDeviceProvisioned()) {
+            return;
+        }
+
         if (proxyToOverridePackage(ACTION_TOGGLE_RECENTS)) {
             return;
         }
@@ -280,6 +299,12 @@
      */
     @Override
     public void preloadRecents() {
+        // Ensure the device has been provisioned before allowing the user to interact with
+        // recents
+        if (!isDeviceProvisioned()) {
+            return;
+        }
+
         int currentUser = sSystemServicesProxy.getCurrentUser();
         if (sSystemServicesProxy.isSystemUser(currentUser)) {
             mImpl.preloadRecents();
@@ -302,6 +327,12 @@
 
     @Override
     public void cancelPreloadingRecents() {
+        // Ensure the device has been provisioned before allowing the user to interact with
+        // recents
+        if (!isDeviceProvisioned()) {
+            return;
+        }
+
         int currentUser = sSystemServicesProxy.getCurrentUser();
         if (sSystemServicesProxy.isSystemUser(currentUser)) {
             mImpl.cancelPreloadingRecents();
@@ -329,11 +360,23 @@
 
     @Override
     public void showNextAffiliatedTask() {
+        // Ensure the device has been provisioned before allowing the user to interact with
+        // recents
+        if (!isDeviceProvisioned()) {
+            return;
+        }
+
         mImpl.showNextAffiliatedTask();
     }
 
     @Override
     public void showPrevAffiliatedTask() {
+        // Ensure the device has been provisioned before allowing the user to interact with
+        // recents
+        if (!isDeviceProvisioned()) {
+            return;
+        }
+
         mImpl.showPrevAffiliatedTask();
     }
 
@@ -456,6 +499,14 @@
     }
 
     /**
+     * @return whether this device is provisioned.
+     */
+    private boolean isDeviceProvisioned() {
+        return Settings.Global.getInt(mContext.getContentResolver(),
+                Settings.Global.DEVICE_PROVISIONED, 0) != 0;
+    }
+
+    /**
      * Attempts to proxy the following action to the override recents package.
      * @return whether the proxying was successful
      */
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index 58f7124..3ae8827 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -42,7 +42,7 @@
 import com.android.systemui.recents.events.EventBus;
 import com.android.systemui.recents.events.activity.AppWidgetProviderChangedEvent;
 import com.android.systemui.recents.events.activity.CancelEnterRecentsWindowAnimationEvent;
-import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationStartedEvent;
+import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationCompletedEvent;
 import com.android.systemui.recents.events.activity.EnterRecentsWindowLastAnimationFrameEvent;
 import com.android.systemui.recents.events.activity.HideRecentsEvent;
 import com.android.systemui.recents.events.activity.IterateRecentsEvent;
@@ -115,29 +115,33 @@
     });
 
     /**
-     * A common Runnable to finish Recents either by calling finish() (with a custom animation) or
-     * launching Home with some ActivityOptions.  Generally we always launch home when we exit
-     * Recents rather than just finishing the activity since we don't know what is behind Recents in
-     * the task stack.  The only case where we finish() directly is when we are cancelling the full
-     * screen transition from the app.
+     * A common Runnable to finish Recents by launching Home with an animation depending on the
+     * last activity launch state.  Generally we always launch home when we exit Recents rather than
+     * just finishing the activity since we don't know what is behind Recents in the task stack.
      */
     class FinishRecentsRunnable implements Runnable {
         Intent mLaunchIntent;
-        ActivityOptions mLaunchOpts;
 
         /**
-         * Creates a finish runnable that starts the specified intent, using the given
-         * ActivityOptions.
+         * Creates a finish runnable that starts the specified intent.
          */
-        public FinishRecentsRunnable(Intent launchIntent, ActivityOptions opts) {
+        public FinishRecentsRunnable(Intent launchIntent) {
             mLaunchIntent = launchIntent;
-            mLaunchOpts = opts;
         }
 
         @Override
         public void run() {
             try {
-                startActivityAsUser(mLaunchIntent, mLaunchOpts.toBundle(), UserHandle.CURRENT);
+                RecentsActivityLaunchState launchState =
+                        Recents.getConfiguration().getLaunchState();
+                ActivityOptions opts = ActivityOptions.makeCustomAnimation(RecentsActivity.this,
+                        launchState.launchedFromSearchHome ?
+                                R.anim.recents_to_search_launcher_enter :
+                                R.anim.recents_to_launcher_enter,
+                        launchState.launchedFromSearchHome ?
+                                R.anim.recents_to_search_launcher_exit :
+                                R.anim.recents_to_launcher_exit);
+                startActivityAsUser(mLaunchIntent, opts.toBundle(), UserHandle.CURRENT);
             } catch (Exception e) {
                 Log.e(TAG, getString(R.string.recents_launch_error_message, "Home"), e);
             }
@@ -191,18 +195,6 @@
             mRecentsView.setTaskStack(stack);
         }
 
-        // Create the home intent runnable
-        Intent homeIntent = new Intent(Intent.ACTION_MAIN, null);
-        homeIntent.addCategory(Intent.CATEGORY_HOME);
-        homeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
-                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
-        mFinishLaunchHomeRunnable = new FinishRecentsRunnable(homeIntent,
-            ActivityOptions.makeCustomAnimation(this,
-                    launchState.launchedFromSearchHome ? R.anim.recents_to_search_launcher_enter :
-                        R.anim.recents_to_launcher_enter,
-                    launchState.launchedFromSearchHome ? R.anim.recents_to_search_launcher_exit :
-                        R.anim.recents_to_launcher_exit));
-
         // Mark the task that is the launch target
         int launchTaskIndexInStack = 0;
         if (launchState.launchedToTaskId != -1) {
@@ -361,6 +353,13 @@
         mEmptyViewStub = (ViewStub) findViewById(R.id.empty_view_stub);
         mScrimViews = new SystemBarScrimViews(this);
 
+        // Create the home intent runnable
+        Intent homeIntent = new Intent(Intent.ACTION_MAIN, null);
+        homeIntent.addCategory(Intent.CATEGORY_HOME);
+        homeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
+                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+        mFinishLaunchHomeRunnable = new FinishRecentsRunnable(homeIntent);
+
         // Bind the search app widget when we first start up
         if (!Constants.DebugFlags.App.DisableSearchBar) {
             mSearchWidgetInfo = ssp.getOrBindSearchAppWidget(this, mAppWidgetHost);
@@ -396,7 +395,7 @@
         boolean wasLaunchedByAm = !launchState.launchedFromHome &&
                 !launchState.launchedFromAppWithThumbnail;
         if (launchState.launchedHasConfigurationChanged || wasLaunchedByAm) {
-            EventBus.getDefault().send(new EnterRecentsWindowAnimationStartedEvent());
+            EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent());
         }
 
         if (!launchState.launchedHasConfigurationChanged) {
@@ -422,6 +421,12 @@
     }
 
     @Override
+    public void onEnterAnimationComplete() {
+        super.onEnterAnimationComplete();
+        EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent());
+    }
+
+    @Override
     protected void onPause() {
         super.onPause();
 
@@ -603,7 +608,7 @@
         }
     }
 
-    public final void onBusEvent(EnterRecentsWindowAnimationStartedEvent event) {
+    public final void onBusEvent(EnterRecentsWindowAnimationCompletedEvent event) {
         // Try and start the enter animation (or restart it on configuration changed)
         ReferenceCountedTrigger t = new ReferenceCountedTrigger(this, null, null, null);
         ViewAnimation.TaskViewEnterContext ctx = new ViewAnimation.TaskViewEnterContext(t);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
index 4059543..50aa2f7 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
@@ -40,7 +40,6 @@
 import com.android.systemui.R;
 import com.android.systemui.SystemUIApplication;
 import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationStartedEvent;
 import com.android.systemui.recents.events.activity.EnterRecentsWindowLastAnimationFrameEvent;
 import com.android.systemui.recents.events.activity.HideRecentsEvent;
 import com.android.systemui.recents.events.activity.IterateRecentsEvent;
@@ -70,7 +69,7 @@
  * be called remotely from the system user.
  */
 public class RecentsImpl extends IRecentsNonSystemUserCallbacks.Stub
-        implements ActivityOptions.OnAnimationStartedListener, ActivityOptions.OnAnimationFinishedListener {
+        implements ActivityOptions.OnAnimationFinishedListener {
 
     private final static String TAG = "RecentsImpl";
     private final static boolean DEBUG = false;
@@ -140,7 +139,6 @@
     TaskStackListenerImpl mTaskStackListener;
     RecentsAppWidgetHost mAppWidgetHost;
     boolean mBootCompleted;
-    boolean mStartAnimationTriggered;
     boolean mCanReuseTaskStackViews = true;
 
     // Task launching
@@ -403,17 +401,22 @@
         ActivityManager.RunningTaskInfo runningTask = ssp.getTopMostTask();
         // Return early if there is no running task
         if (runningTask == null) return;
-        // Return early if the running task is in the home stack (optimization)
-        if (SystemServicesProxy.isHomeStack(runningTask.stackId)) return;
 
         // Find the task in the recents list
+        boolean isTopTaskHome = SystemServicesProxy.isHomeStack(runningTask.stackId);
         ArrayList<Task> tasks = focusedStack.getTasks();
         Task toTask = null;
         ActivityOptions launchOpts = null;
         int taskCount = tasks.size();
         for (int i = taskCount - 1; i >= 1; i--) {
             Task task = tasks.get(i);
-            if (task.key.id == runningTask.id) {
+            if (isTopTaskHome) {
+                toTask = tasks.get(i - 1);
+                launchOpts = ActivityOptions.makeCustomAnimation(mContext,
+                        R.anim.recents_launch_next_affiliated_task_target,
+                        R.anim.recents_fast_toggle_app_home_exit);
+                break;
+            } else if (task.key.id == runningTask.id) {
                 toTask = tasks.get(i - 1);
                 launchOpts = ActivityOptions.makeCustomAnimation(mContext,
                         R.anim.recents_launch_prev_affiliated_task_target,
@@ -613,7 +616,7 @@
         final Task toTask = new Task();
         final TaskViewTransform toTransform = getThumbnailTransitionTransform(stack, stackView,
                 topTask.id, toTask);
-        ForegroundThread.getHandler().post(new Runnable() {
+        ForegroundThread.getHandler().postAtFrontOfQueue(new Runnable() {
             @Override
             public void run() {
                 final Bitmap transitionBitmap = drawThumbnailTransitionBitmap(toTask, toTransform);
@@ -635,7 +638,7 @@
         return ActivityOptions.makeCustomAnimation(mContext,
                 R.anim.recents_from_unknown_enter,
                 R.anim.recents_from_unknown_exit,
-                mHandler, this);
+                mHandler, null);
     }
 
     /**
@@ -646,12 +649,12 @@
             return ActivityOptions.makeCustomAnimation(mContext,
                     R.anim.recents_from_search_launcher_enter,
                     R.anim.recents_from_search_launcher_exit,
-                    mHandler, this);
+                    mHandler, null);
         }
         return ActivityOptions.makeCustomAnimation(mContext,
                 R.anim.recents_from_launcher_enter,
                 R.anim.recents_from_launcher_exit,
-                mHandler, this);
+                mHandler, null);
     }
 
     /**
@@ -677,7 +680,7 @@
             AppTransitionAnimationSpec[] specsArray = new AppTransitionAnimationSpec[specs.size()];
             specs.toArray(specsArray);
             return ActivityOptions.makeThumbnailAspectScaleDownAnimation(mDummyStackView,
-                    specsArray, mHandler, this, this);
+                    specsArray, mHandler, null, this);
         } else {
             // Update the destination rect
             Task toTask = new Task();
@@ -688,7 +691,7 @@
             if (thumbnail != null) {
                 return ActivityOptions.makeThumbnailAspectScaleDownAnimation(mDummyStackView,
                         thumbnail, (int) toTaskRect.left, (int) toTaskRect.top,
-                        (int) toTaskRect.width(), (int) toTaskRect.height(), mHandler, this);
+                        (int) toTaskRect.width(), (int) toTaskRect.height(), mHandler, null);
             }
             // If both the screenshot and thumbnail fails, then just fall back to the default transition
             return getUnknownTransitionActivityOptions();
@@ -841,8 +844,6 @@
     private void startRecentsActivity(ActivityManager.RunningTaskInfo topTask,
               ActivityOptions opts, boolean fromHome, boolean fromSearchHome, boolean fromThumbnail,
               TaskStackLayoutAlgorithm.VisibilityReport vr) {
-        mStartAnimationTriggered = false;
-
         // Update the configuration based on the launch options
         RecentsConfiguration config = Recents.getConfiguration();
         RecentsActivityLaunchState launchState = config.getLaunchState();
@@ -870,16 +871,7 @@
         mCanReuseTaskStackViews = true;
     }
 
-    /**** OnAnimationStartedListener Implementation ****/
-
-    @Override
-    public void onAnimationStarted() {
-        // Notify recents to start the enter animation
-        if (!mStartAnimationTriggered) {
-            mStartAnimationTriggered = true;
-            EventBus.getDefault().post(new EnterRecentsWindowAnimationStartedEvent());
-        }
-    }
+    /**** OnAnimationFinishedListener Implementation ****/
 
     @Override
     public void onAnimationFinished() {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/activity/EnterRecentsWindowAnimationStartedEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/activity/EnterRecentsWindowAnimationCompletedEvent.java
similarity index 72%
rename from packages/SystemUI/src/com/android/systemui/recents/events/activity/EnterRecentsWindowAnimationStartedEvent.java
rename to packages/SystemUI/src/com/android/systemui/recents/events/activity/EnterRecentsWindowAnimationCompletedEvent.java
index f187178..b31f320 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/activity/EnterRecentsWindowAnimationStartedEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/activity/EnterRecentsWindowAnimationCompletedEvent.java
@@ -19,8 +19,10 @@
 import com.android.systemui.recents.events.EventBus;
 
 /**
- * This is sent when the window animation into Recents starts.
+ * This is sent when the window animation into Recents completes.  We use this signal to know when
+ * we can start in-app animations so that they don't conflict with the window transition into
+ * Recents.
  */
-public class EnterRecentsWindowAnimationStartedEvent extends EventBus.Event {
+public class EnterRecentsWindowAnimationCompletedEvent extends EventBus.Event {
     // Simple event
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
index a28601b..85b8fcf 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
@@ -270,7 +270,7 @@
         int taskCount = tasks.size();
         for (int i = taskCount - 1; i >= 0; i--) {
             Task t = tasks.get(i);
-            if (t.isFreeformTask()) {
+            if (t.isFreeformTask() || targetStackId == FREEFORM_WORKSPACE_STACK_ID) {
                 TaskView tv = stackView.getChildViewForTask(t);
                 if (tv == null) {
                     // TODO: Create a different animation task rect for this case (though it should
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java b/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
index c4e2d8a..5a09ee4 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
@@ -26,7 +26,7 @@
 import com.android.systemui.recents.RecentsActivityLaunchState;
 import com.android.systemui.recents.RecentsConfiguration;
 import com.android.systemui.recents.events.activity.DismissRecentsToHomeAnimationStarted;
-import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationStartedEvent;
+import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationCompletedEvent;
 
 /** Manages the scrims for the various system bars. */
 public class SystemBarScrimViews {
@@ -81,21 +81,11 @@
     /**
      * Starts animating the scrim views when entering Recents.
      */
-    public final void onBusEvent(EnterRecentsWindowAnimationStartedEvent event) {
-        RecentsConfiguration config = Recents.getConfiguration();
-        RecentsActivityLaunchState launchState = config.getLaunchState();
-        int transitionEnterFromAppDelay = mContext.getResources().getInteger(
-                R.integer.recents_enter_from_app_transition_duration);
-        int transitionEnterFromHomeDelay = mContext.getResources().getInteger(
-                R.integer.recents_enter_from_home_transition_duration);
-
+    public final void onBusEvent(EnterRecentsWindowAnimationCompletedEvent event) {
         if (mHasStatusBarScrim && mShouldAnimateStatusBarScrim) {
             mStatusBarScrimView.setTranslationY(-mStatusBarScrimView.getMeasuredHeight());
             mStatusBarScrimView.animate()
                     .translationY(0)
-                    .setStartDelay(launchState.launchedFromHome ?
-                            transitionEnterFromHomeDelay :
-                            transitionEnterFromAppDelay)
                     .setDuration(mNavBarScrimEnterDuration)
                     .setInterpolator(mQuintOutInterpolator)
                     .withStartAction(new Runnable() {
@@ -110,9 +100,6 @@
             mNavBarScrimView.setTranslationY(mNavBarScrimView.getMeasuredHeight());
             mNavBarScrimView.animate()
                     .translationY(0)
-                    .setStartDelay(launchState.launchedFromHome ?
-                            transitionEnterFromHomeDelay :
-                            transitionEnterFromAppDelay)
                     .setDuration(mNavBarScrimEnterDuration)
                     .setInterpolator(mQuintOutInterpolator)
                     .withStartAction(new Runnable() {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
index 9c8829f..a57ac9d 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
@@ -1161,7 +1161,7 @@
             TaskView frontTv = getChildViewForTask(newFrontMostTask);
             if (frontTv != null) {
                 frontTv.onTaskBound(newFrontMostTask);
-                frontTv.fadeInActionButton(0, getResources().getInteger(
+                frontTv.fadeInActionButton(getResources().getInteger(
                         R.integer.recents_task_enter_from_app_duration));
             }
         }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
index 4f4b91a..cb7465d 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
@@ -313,10 +313,6 @@
         RecentsActivityLaunchState launchState = config.getLaunchState();
         Resources res = mContext.getResources();
         final TaskViewTransform transform = ctx.currentTaskTransform;
-        final int transitionEnterFromAppDelay = res.getInteger(
-                R.integer.recents_enter_from_app_transition_duration);
-        final int transitionEnterFromHomeDelay = res.getInteger(
-                R.integer.recents_enter_from_home_transition_duration);
         final int taskViewEnterFromAppDuration = res.getInteger(
                 R.integer.recents_task_enter_from_app_duration);
         final int taskViewEnterFromHomeDuration = res.getInteger(
@@ -332,25 +328,22 @@
                 if (Constants.DebugFlags.App.EnableThumbnailAlphaOnFrontmost) {
                     // Animate the thumbnail alpha before the dim animation (to prevent updating the
                     // hardware layer)
-                    mThumbnailView.startEnterRecentsAnimation(transitionEnterFromAppDelay,
-                            new Runnable() {
-                                @Override
-                                public void run() {
-                                    animateDimToProgress(0, taskViewEnterFromAppDuration,
-                                            ctx.postAnimationTrigger.decrementOnAnimationEnd());
-                                }
-                            });
+                    mThumbnailView.startEnterRecentsAnimation(new Runnable() {
+                            @Override
+                            public void run() {
+                                animateDimToProgress(taskViewEnterFromAppDuration,
+                                        ctx.postAnimationTrigger.decrementOnAnimationEnd());
+                            }
+                        });
                 } else {
                     // Immediately start the dim animation
-                    animateDimToProgress(transitionEnterFromAppDelay,
-                            taskViewEnterFromAppDuration,
+                    animateDimToProgress(taskViewEnterFromAppDuration,
                             ctx.postAnimationTrigger.decrementOnAnimationEnd());
                 }
                 ctx.postAnimationTrigger.increment();
 
                 // Animate the action button in
-                fadeInActionButton(transitionEnterFromAppDelay,
-                        taskViewEnterFromAppDuration);
+                fadeInActionButton(taskViewEnterFromAppDuration);
             } else {
                 // Animate the task up if it was occluding the launch target
                 if (ctx.currentTaskOccludesLaunchTarget) {
@@ -358,7 +351,6 @@
                     setAlpha(0f);
                     animate().alpha(1f)
                             .translationY(transform.translationY)
-                            .setStartDelay(transitionEnterFromAppDelay)
                             .setUpdateListener(null)
                             .setInterpolator(mFastOutSlowInInterpolator)
                             .setDuration(taskViewEnterFromHomeDuration)
@@ -377,8 +369,7 @@
         } else if (launchState.launchedFromHome) {
             // Animate the tasks up
             int frontIndex = (ctx.currentStackViewCount - ctx.currentStackViewIndex - 1);
-            int delay = transitionEnterFromHomeDelay +
-                    frontIndex * taskViewEnterFromHomeStaggerDelay;
+            int delay = frontIndex * taskViewEnterFromHomeStaggerDelay;
 
             setScaleX(transform.scale);
             setScaleY(transform.scale);
@@ -404,13 +395,12 @@
         }
     }
 
-    public void fadeInActionButton(int delay, int duration) {
+    public void fadeInActionButton(int duration) {
         // Hide the action button
         mActionButtonView.setAlpha(0f);
 
         // Animate the action button in
         mActionButtonView.animate().alpha(1f)
-                .setStartDelay(delay)
                 .setDuration(duration)
                 .setInterpolator(PhoneStatusBar.ALPHA_IN)
                 .start();
@@ -611,12 +601,11 @@
     }
 
     /** Animates the dim to the task progress. */
-    void animateDimToProgress(int delay, int duration, Animator.AnimatorListener postAnimRunnable) {
+    void animateDimToProgress(int duration, Animator.AnimatorListener postAnimRunnable) {
         // Animate the dim into view as well
         int toDim = getDimFromTaskProgress();
         if (toDim != getDim()) {
             ObjectAnimator anim = ObjectAnimator.ofInt(TaskView.this, "dim", toDim);
-            anim.setStartDelay(delay);
             anim.setDuration(duration);
             if (postAnimRunnable != null) {
                 anim.addListener(postAnimRunnable);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
index 690c297..bc50846 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
@@ -218,13 +218,13 @@
     void onFocusChanged(boolean focused) {
         if (focused) {
             if (Float.compare(getAlpha(), 1f) != 0) {
-                startFadeAnimation(1f, 0, 150, null);
+                startFadeAnimation(1f, 150, null);
             }
         } else {
             float taskViewThumbnailAlpha = getResources().getFloat(
                     R.dimen.recents_task_view_thumbnail_alpha);
             if (Float.compare(getAlpha(), taskViewThumbnailAlpha) != 0) {
-                startFadeAnimation(taskViewThumbnailAlpha, 0, 150, null);
+                startFadeAnimation(taskViewThumbnailAlpha, 150, null);
             }
         }
     }
@@ -244,10 +244,10 @@
     }
 
     /** Animates this task thumbnail as it enters Recents. */
-    void startEnterRecentsAnimation(int delay, Runnable postAnimRunnable) {
+    void startEnterRecentsAnimation(Runnable postAnimRunnable) {
         float taskViewThumbnailAlpha = getResources().getFloat(
                 R.dimen.recents_task_view_thumbnail_alpha);
-        startFadeAnimation(taskViewThumbnailAlpha, delay,
+        startFadeAnimation(taskViewThumbnailAlpha,
                 getResources().getInteger(R.integer.recents_task_enter_from_app_duration),
                 postAnimRunnable);
     }
@@ -256,14 +256,13 @@
     void startLaunchTaskAnimation(Runnable postAnimRunnable) {
         int taskViewExitToAppDuration = mContext.getResources().getInteger(
                 R.integer.recents_task_exit_to_app_duration);
-        startFadeAnimation(1f, 0, taskViewExitToAppDuration, postAnimRunnable);
+        startFadeAnimation(1f, taskViewExitToAppDuration, postAnimRunnable);
     }
 
     /** Starts a new thumbnail alpha animation. */
-    void startFadeAnimation(float finalAlpha, int delay, int duration, final Runnable postAnimRunnable) {
+    void startFadeAnimation(float finalAlpha, int duration, final Runnable postAnimRunnable) {
         Utilities.cancelAnimationWithoutCallbacks(mThumbnailAlphaAnimator);
         mThumbnailAlphaAnimator = ValueAnimator.ofFloat(mThumbnailAlpha, finalAlpha);
-        mThumbnailAlphaAnimator.setStartDelay(delay);
         mThumbnailAlphaAnimator.setDuration(duration);
         mThumbnailAlphaAnimator.setInterpolator(mFastOutSlowInInterpolator);
         mThumbnailAlphaAnimator.addUpdateListener(mThumbnailAlphaUpdateListener);
diff --git a/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java b/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
index 59d4011..a520a33 100644
--- a/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
+++ b/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
@@ -25,8 +25,10 @@
 import android.content.res.Configuration;
 import android.graphics.Rect;
 import android.graphics.Region.Op;
+import android.hardware.display.DisplayManager;
 import android.util.AttributeSet;
-import android.util.DisplayMetrics;
+import android.view.Display;
+import android.view.DisplayInfo;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.View;
@@ -262,9 +264,13 @@
     }
 
     private void updateDisplayInfo() {
-        DisplayMetrics info = mContext.getResources().getDisplayMetrics();
-        mDisplayWidth = info.widthPixels;
-        mDisplayHeight = info.heightPixels;
+        final DisplayManager displayManager =
+                (DisplayManager) mContext.getSystemService(Context.DISPLAY_SERVICE);
+        Display display = displayManager.getDisplay(Display.DEFAULT_DISPLAY);
+        final DisplayInfo info = new DisplayInfo();
+        display.getDisplayInfo(info);
+        mDisplayWidth = info.logicalWidth;
+        mDisplayHeight = info.logicalHeight;
     }
 
     private int calculatePosition(int touchX, int touchY) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
index 3f0000e..069279f 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
@@ -62,6 +62,7 @@
 import android.service.notification.NotificationListenerService.RankingMap;
 import android.service.notification.StatusBarNotification;
 import android.text.TextUtils;
+import android.util.ArraySet;
 import android.util.Log;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -175,6 +176,7 @@
     protected boolean mDeviceInteractive;
 
     protected boolean mVisible;
+    protected ArraySet<Entry> mHeadsUpEntriesToRemoveOnSwitch = new ArraySet<>();
 
     // mScreenOnFromKeyguard && mVisible.
     private boolean mVisibleToUser;
@@ -1664,7 +1666,10 @@
                 return;
             }
 
-            final PendingIntent intent = sbn.getNotification().contentIntent;
+            Notification notification = sbn.getNotification();
+            final PendingIntent intent = notification.contentIntent != null
+                    ? notification.contentIntent
+                    : notification.fullScreenIntent;
             final String notificationKey = sbn.getKey();
 
             // Mark notification for one frame.
@@ -1746,8 +1751,8 @@
         }
 
         public void register(ExpandableNotificationRow row, StatusBarNotification sbn) {
-            final PendingIntent contentIntent = sbn.getNotification().contentIntent;
-            if (contentIntent != null) {
+            Notification notification = sbn.getNotification();
+            if (notification.contentIntent != null || notification.fullScreenIntent != null) {
                 row.setOnClickListener(this);
             } else {
                 row.setOnClickListener(null);
@@ -2013,6 +2018,8 @@
         Entry entry = mNotificationData.get(key);
         if (entry == null) {
             return;
+        } else if (mHeadsUpEntriesToRemoveOnSwitch.contains(entry)) {
+            mHeadsUpEntriesToRemoveOnSwitch.remove(entry);
         }
 
         Notification n = notification.getNotification();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationGroupManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationGroupManager.java
index bbef1c0..fbe9730 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationGroupManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationGroupManager.java
@@ -84,10 +84,10 @@
             // the close future. See b/23676310 for reference.
             return;
         }
-        if (notif.isGroupSummary()) {
-            group.summary = null;
-        } else {
+        if (notif.isGroupChild()) {
             group.children.remove(removed);
+        } else {
+            group.summary = null;
         }
         if (group.children.isEmpty()) {
             if (group.summary == null) {
@@ -107,17 +107,17 @@
             group = new NotificationGroup();
             mGroupMap.put(groupKey, group);
         }
-        if (notif.isGroupSummary()) {
+        if (notif.isGroupChild()) {
+            group.children.add(added);
+            if (group.summary != null && group.children.size() == 1 && !group.expanded) {
+                group.summary.row.updateNotificationHeader();
+            }
+        } else {
             group.summary = added;
             group.expanded = added.row.areChildrenExpanded();
             if (!group.children.isEmpty()) {
                 mListener.onGroupCreatedFromChildren(group);
             }
-        } else {
-            group.children.add(added);
-            if (group.summary != null && group.children.size() == 1 && !group.expanded) {
-                group.summary.row.updateNotificationHeader();
-            }
         }
     }
 
@@ -169,7 +169,7 @@
      * @return whether a given notification is a summary in a group which has children
      */
     public boolean isSummaryOfGroup(StatusBarNotification sbn) {
-        if (sbn.getNotification().isGroupChild()) {
+        if (!sbn.getNotification().isGroupSummary()) {
             return false;
         }
         NotificationGroup group = mGroupMap.get(sbn.getGroupKey());
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index 3e52515..9ab2a2c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -617,7 +617,6 @@
     };
     private HashMap<ExpandableNotificationRow, List<ExpandableNotificationRow>> mTmpChildOrderMap
             = new HashMap<>();
-    private HashSet<Entry> mHeadsUpEntriesToRemoveOnSwitch = new HashSet<>();
     private RankingMap mLatestRankingMap;
     private boolean mNoAnimationOnNextBarModeChange;
     private FalsingManager mFalsingManager;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/HeadsUpManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/HeadsUpManager.java
index dc9f5e8..5cfd174 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/HeadsUpManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/HeadsUpManager.java
@@ -458,7 +458,10 @@
             mReleaseOnExpandFinish = false;
         } else {
             for (NotificationData.Entry entry : mEntriesToRemoveAfterExpand) {
-                removeHeadsUpEntry(entry);
+                if (isHeadsUp(entry.key)) {
+                    // Maybe the heads-up was removed already
+                    removeHeadsUpEntry(entry);
+                }
             }
         }
         mEntriesToRemoveAfterExpand.clear();
@@ -596,6 +599,9 @@
                 postTime = Math.max(postTime, currentTime);
             }
             removeAutoRemovalCallbacks();
+            if (mEntriesToRemoveAfterExpand.contains(entry)) {
+                mEntriesToRemoveAfterExpand.remove(entry);
+            }
             if (!hasFullScreenIntent(entry) && !mRemoteInputActive) {
                 long finishTime = postTime + mHeadsUpNotificationDecay;
                 long removeDelay = Math.max(finishTime - currentTime, mMinimumDisplayTime);
diff --git a/rs/java/android/renderscript/ScriptGroup.java b/rs/java/android/renderscript/ScriptGroup.java
index 54180f4..9bbacbc 100644
--- a/rs/java/android/renderscript/ScriptGroup.java
+++ b/rs/java/android/renderscript/ScriptGroup.java
@@ -278,6 +278,8 @@
             public ValueAndSize(RenderScript rs, Object obj) {
                 if (obj instanceof Allocation) {
                     value = ((Allocation)obj).getID(rs);
+                    // Special value for size to tell the runtime and driver that
+                    // the value is an Allocation
                     size = -1;
                 } else if (obj instanceof Boolean) {
                     value = ((Boolean)obj).booleanValue() ? 1 : 0;
@@ -289,10 +291,10 @@
                     value = ((Long)obj).longValue();
                     size = 8;
                 } else if (obj instanceof Float) {
-                    value = ((Float)obj).longValue();
+                    value = Float.floatToRawIntBits(((Float)obj).floatValue());
                     size = 4;
                 } else if (obj instanceof Double) {
-                    value = ((Double)obj).longValue();
+                    value = Double.doubleToRawLongBits(((Double)obj).doubleValue());
                     size = 8;
                 }
             }
diff --git a/rs/jni/android_renderscript_RenderScript.cpp b/rs/jni/android_renderscript_RenderScript.cpp
index be7071e..113241d 100644
--- a/rs/jni/android_renderscript_RenderScript.cpp
+++ b/rs/jni/android_renderscript_RenderScript.cpp
@@ -393,7 +393,6 @@
 
   size_t numValues, numDependencies;
   RsScriptFieldID* fieldIDs;
-  uintptr_t* values;
   RsClosure* depClosures;
   RsScriptFieldID* depFieldIDs;
 
@@ -430,15 +429,6 @@
     fieldIDs[i] = (RsScriptFieldID)jFieldIDs[i];
   }
 
-  values = (uintptr_t*)alloca(sizeof(uintptr_t) * numValues);
-  if (values == nullptr) {
-      goto exit;
-  }
-
-  for (size_t i = 0; i < numValues; i++) {
-    values[i] = (uintptr_t)jValues[i];
-  }
-
   depClosures = (RsClosure*)alloca(sizeof(RsClosure) * numDependencies);
   if (depClosures == nullptr) {
       goto exit;
@@ -459,7 +449,7 @@
 
   ret = (jlong)(uintptr_t)rsClosureCreate(
       (RsContext)con, (RsScriptKernelID)kernelID, (RsAllocation)returnValue,
-      fieldIDs, numValues, values, numValues,
+      fieldIDs, numValues, jValues, numValues,
       (int*)jSizes, numValues,
       depClosures, numDependencies,
       depFieldIDs, numDependencies);
@@ -511,7 +501,6 @@
 
   size_t numValues;
   RsScriptFieldID* fieldIDs;
-  uintptr_t* values;
 
   if (fieldIDs_length != values_length || values_length != sizes_length) {
       ALOGE("Unmatched field IDs, values, and sizes in closure creation.");
@@ -534,18 +523,9 @@
     fieldIDs[i] = (RsScriptFieldID)jFieldIDs[i];
   }
 
-  values = (uintptr_t*)alloca(sizeof(uintptr_t) * numValues);
-  if (values == nullptr) {
-      goto exit;
-  }
-
-  for (size_t i = 0; i < numValues; i++) {
-    values[i] = (uintptr_t)jValues[i];
-  }
-
   ret = (jlong)(uintptr_t)rsInvokeClosureCreate(
       (RsContext)con, (RsScriptInvokeID)invokeID, jParams, jParamLength,
-      fieldIDs, numValues, values, numValues,
+      fieldIDs, numValues, jValues, numValues,
       (int*)jSizes, numValues);
 
 exit:
@@ -561,15 +541,17 @@
 static void
 nClosureSetArg(JNIEnv *_env, jobject _this, jlong con, jlong closureID,
                jint index, jlong value, jint size) {
+  // Size is signed with -1 indicating the value is an Allocation
   rsClosureSetArg((RsContext)con, (RsClosure)closureID, (uint32_t)index,
-                  (uintptr_t)value, (size_t)size);
+                  (uintptr_t)value, size);
 }
 
 static void
 nClosureSetGlobal(JNIEnv *_env, jobject _this, jlong con, jlong closureID,
                   jlong fieldID, jlong value, jint size) {
+  // Size is signed with -1 indicating the value is an Allocation
   rsClosureSetGlobal((RsContext)con, (RsClosure)closureID,
-                     (RsScriptFieldID)fieldID, (uintptr_t)value, (size_t)size);
+                     (RsScriptFieldID)fieldID, (int64_t)value, size);
 }
 
 static long
diff --git a/services/accessibility/java/com/android/server/accessibility/MagnificationController.java b/services/accessibility/java/com/android/server/accessibility/MagnificationController.java
index b4411cf..781d134 100644
--- a/services/accessibility/java/com/android/server/accessibility/MagnificationController.java
+++ b/services/accessibility/java/com/android/server/accessibility/MagnificationController.java
@@ -341,7 +341,7 @@
         mTransformationAnimator.start();
     }
 
-    private void setMagnificationSpec(MagnificationSpec spec) {
+    public void setMagnificationSpec(MagnificationSpec spec) {
         if (DEBUG_SET_MAGNIFICATION_SPEC) {
             Slog.i(LOG_TAG, "Sending: " + spec);
         }
@@ -351,6 +351,10 @@
         mWindowManager.setMagnificationSpec(MagnificationSpec.obtain(spec));
     }
 
+    public MagnificationSpec getMagnificationSpec() {
+        return mSentMagnificationSpec;
+    }
+
     private static class MagnificationSpecEvaluator implements TypeEvaluator<MagnificationSpec> {
         private final MagnificationSpec mTempTransformationSpec = MagnificationSpec.obtain();
 
diff --git a/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java b/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java
index 02b5b8a..25fef18 100644
--- a/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java
+++ b/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java
@@ -79,10 +79,11 @@
 import com.android.internal.util.FastXmlSerializer;
 import com.android.internal.widget.IRemoteViewsAdapterConnection;
 import com.android.internal.widget.IRemoteViewsFactory;
-
 import com.android.server.LocalServices;
 import com.android.server.WidgetBackupProvider;
+
 import libcore.io.IoUtils;
+
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;
@@ -1954,8 +1955,13 @@
                 if (period < MIN_UPDATE_PERIOD) {
                     period = MIN_UPDATE_PERIOD;
                 }
-                mAlarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
-                        SystemClock.elapsedRealtime() + period, period, provider.broadcast);
+                final long oldId = Binder.clearCallingIdentity();
+                try {
+                    mAlarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
+                            SystemClock.elapsedRealtime() + period, period, provider.broadcast);
+                } finally {
+                    Binder.restoreCallingIdentity(oldId);
+                }
             }
         }
     }
diff --git a/services/core/java/com/android/server/BluetoothManagerService.java b/services/core/java/com/android/server/BluetoothManagerService.java
index fd67b41..f329cff 100644
--- a/services/core/java/com/android/server/BluetoothManagerService.java
+++ b/services/core/java/com/android/server/BluetoothManagerService.java
@@ -95,8 +95,6 @@
     private static final int MESSAGE_BLUETOOTH_STATE_CHANGE=60;
     private static final int MESSAGE_TIMEOUT_BIND =100;
     private static final int MESSAGE_TIMEOUT_UNBIND =101;
-    private static final int MESSAGE_GET_NAME_AND_ADDRESS=200;
-    private static final int MESSAGE_SAVE_NAME_AND_ADDRESS=201;
     private static final int MESSAGE_USER_SWITCHED = 300;
     private static final int MESSAGE_ADD_PROXY_DELAYED = 400;
     private static final int MESSAGE_BIND_PROFILE_SERVICE = 401;
@@ -587,15 +585,6 @@
         }
     }
 
-    /** @hide*/
-    public void getNameAndAddress() {
-        if (DBG) {
-            Log.d(TAG,"getNameAndAddress(): mBluetooth = " + mBluetooth +
-                  " mBinding = " + mBinding);
-        }
-        Message msg = mHandler.obtainMessage(MESSAGE_GET_NAME_AND_ADDRESS);
-        mHandler.sendMessage(msg);
-    }
     public boolean enableNoAutoConnect()
     {
         mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
@@ -681,14 +670,13 @@
             if (mUnbinding) return;
             mUnbinding = true;
             if (mBluetooth != null) {
-                if (!mConnection.isGetNameAddressOnly()) {
-                    //Unregister callback object
-                    try {
-                        mBluetooth.unregisterCallback(mBluetoothCallback);
-                    } catch (RemoteException re) {
-                        Log.e(TAG, "Unable to unregister BluetoothCallback",re);
-                    }
+                //Unregister callback object
+                try {
+                    mBluetooth.unregisterCallback(mBluetoothCallback);
+                } catch (RemoteException re) {
+                    Log.e(TAG, "Unable to unregister BluetoothCallback",re);
                 }
+
                 if (DBG) Log.d(TAG, "Sending unbind request.");
                 mBluetooth = null;
                 //Unbind
@@ -780,11 +768,6 @@
             if (DBG) Log.d(TAG, "Auto-enabling Bluetooth.");
             sendEnableMsg(mQuietEnableExternal);
         }
-        if (!isNameAndAddressSet()) {
-            // Sync the Bluetooth name and address from the Bluetooth Adapter
-            if (DBG) Log.d(TAG, "Retrieving Bluetooth Adapter name and address...");
-            getNameAndAddress();
-        }
     }
 
     /**
@@ -957,42 +940,38 @@
      * Inform BluetoothAdapter instances that Adapter service is up
      */
     private void sendBluetoothServiceUpCallback() {
-        if (!mConnection.isGetNameAddressOnly()) {
-            if (DBG) Log.d(TAG,"Calling onBluetoothServiceUp callbacks");
-            try {
-                int n = mCallbacks.beginBroadcast();
-                Log.d(TAG,"Broadcasting onBluetoothServiceUp() to " + n + " receivers.");
-                for (int i=0; i <n;i++) {
-                    try {
-                        mCallbacks.getBroadcastItem(i).onBluetoothServiceUp(mBluetooth);
-                    }  catch (RemoteException e) {
-                        Log.e(TAG, "Unable to call onBluetoothServiceUp() on callback #" + i, e);
-                    }
+        if (DBG) Log.d(TAG,"Calling onBluetoothServiceUp callbacks");
+        try {
+            int n = mCallbacks.beginBroadcast();
+            Log.d(TAG,"Broadcasting onBluetoothServiceUp() to " + n + " receivers.");
+            for (int i=0; i <n;i++) {
+                try {
+                    mCallbacks.getBroadcastItem(i).onBluetoothServiceUp(mBluetooth);
+                }  catch (RemoteException e) {
+                    Log.e(TAG, "Unable to call onBluetoothServiceUp() on callback #" + i, e);
                 }
-            } finally {
-                mCallbacks.finishBroadcast();
             }
+        } finally {
+            mCallbacks.finishBroadcast();
         }
     }
     /**
      * Inform BluetoothAdapter instances that Adapter service is down
      */
     private void sendBluetoothServiceDownCallback() {
-        if (!mConnection.isGetNameAddressOnly()) {
-            if (DBG) Log.d(TAG,"Calling onBluetoothServiceDown callbacks");
-            try {
-                int n = mCallbacks.beginBroadcast();
-                Log.d(TAG,"Broadcasting onBluetoothServiceDown() to " + n + " receivers.");
-                for (int i=0; i <n;i++) {
-                    try {
-                        mCallbacks.getBroadcastItem(i).onBluetoothServiceDown();
-                    }  catch (RemoteException e) {
-                        Log.e(TAG, "Unable to call onBluetoothServiceDown() on callback #" + i, e);
-                    }
+        if (DBG) Log.d(TAG,"Calling onBluetoothServiceDown callbacks");
+        try {
+            int n = mCallbacks.beginBroadcast();
+            Log.d(TAG,"Broadcasting onBluetoothServiceDown() to " + n + " receivers.");
+            for (int i=0; i <n;i++) {
+                try {
+                    mCallbacks.getBroadcastItem(i).onBluetoothServiceDown();
+                }  catch (RemoteException e) {
+                    Log.e(TAG, "Unable to call onBluetoothServiceDown() on callback #" + i, e);
                 }
-            } finally {
-                mCallbacks.finishBroadcast();
             }
+        } finally {
+            mCallbacks.finishBroadcast();
         }
     }
 
@@ -1052,17 +1031,6 @@
     }
 
     private class BluetoothServiceConnection implements ServiceConnection {
-
-        private boolean mGetNameAddressOnly;
-
-        public void setGetNameAddressOnly(boolean getOnly) {
-            mGetNameAddressOnly = getOnly;
-        }
-
-        public boolean isGetNameAddressOnly() {
-            return mGetNameAddressOnly;
-        }
-
         public void onServiceConnected(ComponentName className, IBinder service) {
             if (DBG) Log.d(TAG, "BluetoothServiceConnection: " + className.getClassName());
             Message msg = mHandler.obtainMessage(MESSAGE_BLUETOOTH_SERVICE_CONNECTED);
@@ -1108,104 +1076,6 @@
         public void handleMessage(Message msg) {
             if (DBG) Log.d (TAG, "Message: " + msg.what);
             switch (msg.what) {
-                case MESSAGE_GET_NAME_AND_ADDRESS: {
-                    if (DBG) Log.d(TAG,"MESSAGE_GET_NAME_AND_ADDRESS");
-                    synchronized(mConnection) {
-                        //Start bind request
-                        if ((mBluetooth == null) && (!mBinding)) {
-                            if (DBG) Log.d(TAG, "Binding to service to get name and address");
-                            mConnection.setGetNameAddressOnly(true);
-                            //Start bind timeout and bind
-                            Message timeoutMsg = mHandler.obtainMessage(MESSAGE_TIMEOUT_BIND);
-                            mHandler.sendMessageDelayed(timeoutMsg,TIMEOUT_BIND_MS);
-                            Intent i = new Intent(IBluetooth.class.getName());
-                            if (!doBind(i, mConnection,
-                                    Context.BIND_AUTO_CREATE | Context.BIND_IMPORTANT,
-                                    UserHandle.CURRENT)) {
-                                mHandler.removeMessages(MESSAGE_TIMEOUT_BIND);
-                            } else {
-                                mBinding = true;
-                            }
-                        }
-                        else {
-                            Message saveMsg= mHandler.obtainMessage(MESSAGE_SAVE_NAME_AND_ADDRESS);
-                            saveMsg.arg1 = 0;
-                            if (mBluetooth != null) {
-                                mHandler.sendMessage(saveMsg);
-                            } else {
-                                // if enable is also called to bind the service
-                                // wait for MESSAGE_BLUETOOTH_SERVICE_CONNECTED
-                                mHandler.sendMessageDelayed(saveMsg, TIMEOUT_SAVE_MS);
-                            }
-                        }
-                    }
-                    break;
-                }
-                case MESSAGE_SAVE_NAME_AND_ADDRESS: {
-                    boolean unbind = false;
-                    if (DBG) Log.d(TAG,"MESSAGE_SAVE_NAME_AND_ADDRESS");
-                    synchronized(mConnection) {
-                        if (!mEnable && mBluetooth != null && !mConnection.isGetNameAddressOnly()) {
-                            try {
-                                mBluetooth.enable();
-                            } catch (RemoteException e) {
-                                Log.e(TAG,"Unable to call enable()",e);
-                            }
-                        }
-                    }
-                    if (mBluetooth != null && !mConnection.isGetNameAddressOnly()) waitForOnOff(true, false);
-                    synchronized(mConnection) {
-                        if (mBluetooth != null) {
-                            String name =  null;
-                            String address = null;
-                            try {
-                                name =  mBluetooth.getName();
-                                address = mBluetooth.getAddress();
-                            } catch (RemoteException re) {
-                                Log.e(TAG,"",re);
-                            }
-
-                            if (name != null && address != null) {
-                                storeNameAndAddress(name,address);
-                                if (mConnection.isGetNameAddressOnly()) {
-                                    unbind = true;
-                                }
-                            } else {
-                                if (msg.arg1 < MAX_SAVE_RETRIES) {
-                                    Message retryMsg = mHandler.obtainMessage(MESSAGE_SAVE_NAME_AND_ADDRESS);
-                                    retryMsg.arg1= 1+msg.arg1;
-                                    if (DBG) Log.d(TAG,"Retrying name/address remote retrieval and save.....Retry count =" + retryMsg.arg1);
-                                    mHandler.sendMessageDelayed(retryMsg, TIMEOUT_SAVE_MS);
-                                } else {
-                                    Log.w(TAG,"Maximum name/address remote retrieval retry exceeded");
-                                    if (mConnection.isGetNameAddressOnly()) {
-                                        unbind = true;
-                                    }
-                                }
-                            }
-                            if (!mEnable && !mConnection.isGetNameAddressOnly()) {
-                                try {
-                                    mBluetooth.disable();
-                                } catch (RemoteException e) {
-                                    Log.e(TAG,"Unable to call disable()",e);
-                                }
-                            }
-                        } else {
-                            // rebind service by Request GET NAME AND ADDRESS
-                            // if service is unbinded by disable or
-                            // MESSAGE_BLUETOOTH_SERVICE_CONNECTED is not received
-                            Message getMsg = mHandler.obtainMessage(MESSAGE_GET_NAME_AND_ADDRESS);
-                            mHandler.sendMessage(getMsg);
-                        }
-                    }
-                    if (!mEnable && mBluetooth != null && !mConnection.isGetNameAddressOnly()) {
-                        waitForOnOff(false, true);
-                    }
-                    if (unbind) {
-                        unbindAndFinish();
-                    }
-                    break;
-                }
                 case MESSAGE_ENABLE:
                     if (DBG) {
                         Log.d(TAG, "MESSAGE_ENABLE: mBluetooth = " + mBluetooth);
@@ -1308,14 +1178,6 @@
                             Log.e(TAG,"Unable to call configHciSnoopLog", e);
                         }
 
-                        if (mConnection.isGetNameAddressOnly()) {
-                            //Request GET NAME AND ADDRESS
-                            Message getMsg = mHandler.obtainMessage(MESSAGE_GET_NAME_AND_ADDRESS);
-                            mHandler.sendMessage(getMsg);
-                            if (!mEnable) return;
-                        }
-
-                        mConnection.setGetNameAddressOnly(false);
                         //Register callback object
                         try {
                             mBluetooth.registerCallback(mBluetoothCallback);
@@ -1412,25 +1274,23 @@
                             SERVICE_RESTART_TIME_MS);
                     }
 
-                    if (!mConnection.isGetNameAddressOnly()) {
-                        sendBluetoothServiceDownCallback();
+                    sendBluetoothServiceDownCallback();
 
-                        // Send BT state broadcast to update
-                        // the BT icon correctly
-                        if ((mState == BluetoothAdapter.STATE_TURNING_ON) ||
-                            (mState == BluetoothAdapter.STATE_ON)) {
-                            bluetoothStateChangeHandler(BluetoothAdapter.STATE_ON,
-                                                        BluetoothAdapter.STATE_TURNING_OFF);
-                            mState = BluetoothAdapter.STATE_TURNING_OFF;
-                        }
-                        if (mState == BluetoothAdapter.STATE_TURNING_OFF) {
-                            bluetoothStateChangeHandler(BluetoothAdapter.STATE_TURNING_OFF,
-                                                        BluetoothAdapter.STATE_OFF);
-                        }
-
-                        mHandler.removeMessages(MESSAGE_BLUETOOTH_STATE_CHANGE);
-                        mState = BluetoothAdapter.STATE_OFF;
+                    // Send BT state broadcast to update
+                    // the BT icon correctly
+                    if ((mState == BluetoothAdapter.STATE_TURNING_ON) ||
+                        (mState == BluetoothAdapter.STATE_ON)) {
+                        bluetoothStateChangeHandler(BluetoothAdapter.STATE_ON,
+                                                    BluetoothAdapter.STATE_TURNING_OFF);
+                        mState = BluetoothAdapter.STATE_TURNING_OFF;
                     }
+                    if (mState == BluetoothAdapter.STATE_TURNING_OFF) {
+                        bluetoothStateChangeHandler(BluetoothAdapter.STATE_TURNING_OFF,
+                                                    BluetoothAdapter.STATE_OFF);
+                    }
+
+                    mHandler.removeMessages(MESSAGE_BLUETOOTH_STATE_CHANGE);
+                    mState = BluetoothAdapter.STATE_OFF;
                     break;
                 }
                 case MESSAGE_RESTART_BLUETOOTH_SERVICE:
@@ -1539,7 +1399,6 @@
                 //Start bind timeout and bind
                 Message timeoutMsg=mHandler.obtainMessage(MESSAGE_TIMEOUT_BIND);
                 mHandler.sendMessageDelayed(timeoutMsg,TIMEOUT_BIND_MS);
-                mConnection.setGetNameAddressOnly(false);
                 Intent i = new Intent(IBluetooth.class.getName());
                 if (!doBind(i, mConnection,Context.BIND_AUTO_CREATE | Context.BIND_IMPORTANT,
                         UserHandle.CURRENT)) {
@@ -1548,21 +1407,6 @@
                     mBinding = true;
                 }
             } else if (mBluetooth != null) {
-                if (mConnection.isGetNameAddressOnly()) {
-                    // if GetNameAddressOnly is set, we can clear this flag,
-                    // so the service won't be unbind
-                    // after name and address are saved
-                    mConnection.setGetNameAddressOnly(false);
-                    //Register callback object
-                    try {
-                        mBluetooth.registerCallback(mBluetoothCallback);
-                    } catch (RemoteException re) {
-                        Log.e(TAG, "Unable to register BluetoothCallback",re);
-                    }
-                    //Inform BluetoothAdapter instances that service is up
-                    sendBluetoothServiceUpCallback();
-                }
-
                 //Enable bluetooth
                 try {
                     if (!mQuietEnable) {
@@ -1594,9 +1438,7 @@
 
     private void handleDisable() {
         synchronized(mConnection) {
-            // don't need to disable if GetNameAddressOnly is set,
-            // service will be unbinded after Name and Address are saved
-            if ((mBluetooth != null) && (!mConnection.isGetNameAddressOnly())) {
+            if (mBluetooth != null) {
                 if (DBG) Log.d(TAG,"Sending off request.");
 
                 try {
diff --git a/services/core/java/com/android/server/BluetoothService.java b/services/core/java/com/android/server/BluetoothService.java
index 73e8c52..019d03d 100644
--- a/services/core/java/com/android/server/BluetoothService.java
+++ b/services/core/java/com/android/server/BluetoothService.java
@@ -31,14 +31,15 @@
 
     @Override
     public void onStart() {
-        Log.d(TAG, "onStart: publishing BluetoothManagerService");
-        publishBinderService(BluetoothAdapter.BLUETOOTH_MANAGER_SERVICE, mBluetoothManagerService);
     }
 
     @Override
     public void onBootPhase(int phase) {
         if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) {
             Log.d(TAG, "onBootPhase: PHASE_SYSTEM_SERVICES_READY");
+            publishBinderService(BluetoothAdapter.BLUETOOTH_MANAGER_SERVICE, mBluetoothManagerService);
+        } else if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) {
+            Log.d(TAG, "onBootPhase: PHASE_ACTIVITY_MANAGER_READY");
             mBluetoothManagerService.handleOnBootPhase();
         }
     }
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 2b776b9..566065c 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -55,8 +55,6 @@
 import android.app.IAppTask;
 import android.app.ITaskStackListener;
 import android.app.ProfilerInfo;
-import android.app.admin.DevicePolicyManagerInternal;
-import android.app.admin.IDevicePolicyManager;
 import android.app.assist.AssistContent;
 import android.app.assist.AssistStructure;
 import android.app.usage.UsageEvents;
@@ -334,6 +332,11 @@
     // before we decide it must be hung.
     static final int CONTENT_PROVIDER_PUBLISH_TIMEOUT = 10*1000;
 
+    // How long we will retain processes hosting content providers in the "last activity"
+    // state before allowing them to drop down to the regular cached LRU list.  This is
+    // to avoid thrashing of provider processes under low memory situations.
+    static final int CONTENT_PROVIDER_RETAIN_TIME = 20*1000;
+
     // How long we wait for a launched process to attach to the activity manager
     // before we decide it's never going to come up for real, when the process was
     // started with a wrapper for instrumentation (such as Valgrind) because it
@@ -504,6 +507,11 @@
      */
     SparseArray<String[]> mLockTaskPackages = new SparseArray<>();
 
+    /**
+     * The package name of the DeviceOwner. This package is not permitted to have its data cleared.
+     */
+    String mDeviceOwnerName;
+
     final UserController mUserController;
 
     public class PendingAssistExtras extends Binder implements Runnable {
@@ -5134,12 +5142,8 @@
     public boolean clearApplicationUserData(final String packageName,
             final IPackageDataObserver observer, int userId) {
         enforceNotIsolatedCaller("clearApplicationUserData");
-
-        final DevicePolicyManagerInternal dpmi =
-                LocalServices.getService(DevicePolicyManagerInternal.class);
-        if (dpmi != null && dpmi.isDeviceAdminPackage(userId, packageName)) {
-            throw new SecurityException(
-                    "Clearing DeviceAdmin/DeviceOwner/ProfileOwner data is forbidden.");
+        if (packageName != null && packageName.equals(mDeviceOwnerName)) {
+            throw new SecurityException("Clearing DeviceOwner data is forbidden.");
         }
         int uid = Binder.getCallingUid();
         int pid = Binder.getCallingPid();
@@ -9240,6 +9244,17 @@
     }
 
     @Override
+    public void updateDeviceOwner(String packageName) {
+        final int callingUid = Binder.getCallingUid();
+        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
+            throw new SecurityException("updateDeviceOwner called from non-system process");
+        }
+        synchronized (this) {
+            mDeviceOwnerName = packageName;
+        }
+    }
+
+    @Override
     public void updateLockTaskPackages(int userId, String[] packages) {
         final int callingUid = Binder.getCallingUid();
         if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
@@ -9636,6 +9651,14 @@
             if (conn.stableCount == 0 && conn.unstableCount == 0) {
                 cpr.connections.remove(conn);
                 conn.client.conProviders.remove(conn);
+                if (conn.client.setProcState < ActivityManager.PROCESS_STATE_LAST_ACTIVITY) {
+                    // The client is more important than last activity -- note the time this
+                    // is happening, so we keep the old provider process around a bit as last
+                    // activity to avoid thrashing it.
+                    if (cpr.proc != null) {
+                        cpr.proc.lastProviderTime = SystemClock.uptimeMillis();
+                    }
+                }
                 stopAssociationLocked(conn.client.uid, conn.client.processName, cpr.uid, cpr.name);
                 return true;
             }
@@ -12079,8 +12102,6 @@
                 }
             }
 
-            enableSystemUserApps();
-
             // Start up initial activity.
             mBooting = true;
             startHomeActivityLocked(currentUserId, "systemReady");
@@ -12132,43 +12153,6 @@
         }
     }
 
-    private void enableSystemUserApps() {
-        // For system user, enable apps based on the following conditions:
-        // - app is whitelisted; or has no launcher icons; or has INTERACT_ACROSS_USERS permission
-        // - app is not in the blacklist
-        if (UserManager.isSplitSystemUser()) {
-            AppsQueryHelper queryHelper = new AppsQueryHelper(mContext);
-            Set<String> enableApps = new HashSet<>();
-            enableApps.addAll(queryHelper.queryApps(AppsQueryHelper.GET_NON_LAUNCHABLE_APPS
-                            | AppsQueryHelper.GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM
-                            | AppsQueryHelper.GET_DEFAULT_IMES,
-                            /* systemAppsOnly */ true, UserHandle.SYSTEM));
-            ArraySet<String> wlApps = SystemConfig.getInstance().getSystemUserWhitelistedApps();
-            enableApps.addAll(wlApps);
-            ArraySet<String> blApps = SystemConfig.getInstance().getSystemUserBlacklistedApps();
-            enableApps.removeAll(blApps);
-
-            List<String> systemApps = queryHelper.queryApps(0, /* systemAppsOnly */ true,
-                    UserHandle.SYSTEM);
-            final int systemAppsSize = systemApps.size();
-            for (int i = 0; i < systemAppsSize; i++) {
-                String pName = systemApps.get(i);
-                boolean enable = enableApps.contains(pName);
-                try {
-                    if (enable) {
-                        AppGlobals.getPackageManager().installExistingPackageAsUser(pName,
-                                UserHandle.USER_SYSTEM);
-                    } else {
-                        AppGlobals.getPackageManager().deletePackageAsUser(pName, null,
-                                UserHandle.USER_SYSTEM, PackageManager.DELETE_SYSTEM_APP);
-                    }
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Error occured when processing package " + pName, e);
-                }
-            }
-        }
-    }
-
     private boolean makeAppCrashingLocked(ProcessRecord app,
             String shortMsg, String longMsg, String stackTrace) {
         app.crashing = true;
@@ -18390,6 +18374,18 @@
             }
         }
 
+        if (app.lastProviderTime > 0 && (app.lastProviderTime+CONTENT_PROVIDER_RETAIN_TIME) > now) {
+            if (adj > ProcessList.PREVIOUS_APP_ADJ) {
+                adj = ProcessList.PREVIOUS_APP_ADJ;
+                schedGroup = Process.THREAD_GROUP_BG_NONINTERACTIVE;
+                app.cached = false;
+                app.adjType = "provider";
+            }
+            if (procState > ActivityManager.PROCESS_STATE_LAST_ACTIVITY) {
+                procState = ActivityManager.PROCESS_STATE_LAST_ACTIVITY;
+            }
+        }
+
         if (mayBeTop && procState > ActivityManager.PROCESS_STATE_TOP) {
             // A client of one of our services or providers is in the top state.  We
             // *may* want to be in the top state, but not if we are already running in
diff --git a/services/core/java/com/android/server/am/ActivityStack.java b/services/core/java/com/android/server/am/ActivityStack.java
index ba6e9b1c..e28d198 100644
--- a/services/core/java/com/android/server/am/ActivityStack.java
+++ b/services/core/java/com/android/server/am/ActivityStack.java
@@ -1338,7 +1338,12 @@
             return topHomeActivity == null || !topHomeActivity.isHomeActivity();
         }
 
-        final int belowFocusedIndex = mStacks.indexOf(focusedStack) - 1;
+        // Find the first stack below focused stack that actually got something visible.
+        int belowFocusedIndex = mStacks.indexOf(focusedStack) - 1;
+        while (belowFocusedIndex >= 0 &&
+                mStacks.get(belowFocusedIndex).topRunningActivityLocked() == null) {
+            belowFocusedIndex--;
+        }
         if ((focusedStackId == DOCKED_STACK_ID || focusedStackId == PINNED_STACK_ID)
                 && stackIndex == belowFocusedIndex) {
             // Stacks directly behind the docked or pinned stack are always visible.
@@ -1413,19 +1418,9 @@
         if (top == null) {
             return;
         }
-        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
-                "ensureActivitiesVisible behind " + top
+        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "ensureActivitiesVisible behind " + top
                 + " configChanges=0x" + Integer.toHexString(configChanges));
-
-        if (mTranslucentActivityWaiting != top) {
-            mUndrawnActivitiesBelowTopTranslucent.clear();
-            if (mTranslucentActivityWaiting != null) {
-                // Call the callback with a timeout indication.
-                notifyActivityDrawnLocked(null);
-                mTranslucentActivityWaiting = null;
-            }
-            mHandler.removeMessages(TRANSLUCENT_TIMEOUT_MSG);
-        }
+        checkTranslucentActivityWaiting(top);
 
         // If the top activity is not fullscreen, then we need to
         // make sure any activities under it are now visible.
@@ -1453,7 +1448,6 @@
                     if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
                             "Make visible? " + r + " finishing=" + r.finishing
                             + " state=" + r.state);
-
                     // First: if this is not the current activity being started, make
                     // sure it matches the current configuration.
                     if (r != starting) {
@@ -1461,143 +1455,28 @@
                     }
 
                     if (r.app == null || r.app.thread == null) {
-                        // We need to make sure the app is running if it's the top, or it is
-                        // just made visible from invisible.
-                        // If the app is already visible, it must have died while it was visible.
-                        // In this case, we'll show the dead window but will not restart the app.
-                        // Otherwise we could end up thrashing.
-                        if (r == top || !r.visible) {
-                            // This activity needs to be visible, but isn't even running...
-                            // get it started and resume if no other stack in this stack is resumed.
-                            if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
-                                    "Start and freeze screen for " + r);
-                            if (r != starting) {
-                                r.startFreezingScreenLocked(r.app, configChanges);
-                            }
-                            if (!r.visible || r.mLaunchTaskBehind) {
-                                if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
-                                        "Starting and making visible: " + r);
-                                setVisible(r, true);
-                            }
-                            if (r != starting) {
-                                mStackSupervisor.startSpecificActivityLocked(
-                                        r, noStackActivityResumed, false);
-                                if (activityNdx >= activities.size()) {
-                                    // Record may be removed if its process needs to restart.
-                                    activityNdx = activities.size() - 1;
-                                } else {
-                                    noStackActivityResumed = false;
-                                }
+                        if (makeVisibleAndRestartIfNeeded(starting, configChanges, top,
+                                noStackActivityResumed, r)) {
+                            if (activityNdx >= activities.size()) {
+                                // Record may be removed if its process needs to restart.
+                                activityNdx = activities.size() - 1;
+                            } else {
+                                noStackActivityResumed = false;
                             }
                         }
                     } else if (r.visible) {
-                        // If this activity is already visible, then there is nothing
-                        // else to do here.
-                        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
-                                "Skipping: already visible at " + r);
-                        r.stopFreezingScreenLocked(false);
-                        try {
-                            if (r.returningOptions != null) {
-                                r.app.thread.scheduleOnNewActivityOptions(r.appToken,
-                                        r.returningOptions);
-                            }
-                        } catch(RemoteException e) {
-                        }
-                        if (r.state == ActivityState.RESUMED) {
+                        if (alreadyVisible(r)) {
                             noStackActivityResumed = false;
                         }
                     } else {
-                        // This activity is not currently visible, but is running.
-                        // Tell it to become visible.
-                        r.visible = true;
-                        if (r.state != ActivityState.RESUMED && r != starting) {
-                            // If this activity is paused, tell it
-                            // to now show its window.
-                            if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
-                                    "Making visible and scheduling visibility: " + r);
-                            try {
-                                if (mTranslucentActivityWaiting != null) {
-                                    r.updateOptionsLocked(r.returningOptions);
-                                    mUndrawnActivitiesBelowTopTranslucent.add(r);
-                                }
-                                setVisible(r, true);
-                                r.sleeping = false;
-                                r.app.pendingUiClean = true;
-                                r.app.thread.scheduleWindowVisibility(r.appToken, true);
-                                r.stopFreezingScreenLocked(false);
-                            } catch (Exception e) {
-                                // Just skip on any failure; we'll make it
-                                // visible when it next restarts.
-                                Slog.w(TAG, "Exception thrown making visibile: "
-                                        + r.intent.getComponent(), e);
-                            }
-                        }
+                        becomeVisible(starting, r);
                     }
-
                     // Aggregate current change flags.
                     configChanges |= r.configChangeFlags;
-
-                    if (r.fullscreen) {
-                        // At this point, nothing else needs to be shown in this task.
-                        behindFullscreenActivity = true;
-                        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Fullscreen: at " + r
-                                + " stackInvisible=" + stackInvisible
-                                + " behindFullscreenActivity=" + behindFullscreenActivity);
-                    } else if (!isHomeStack() && r.frontOfTask && task.isOverHomeStack()) {
-                        behindFullscreenActivity = true;
-                        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Showing home: at " + r
-                                + " stackInvisible=" + stackInvisible
-                                + " behindFullscreenActivity=" + behindFullscreenActivity);
-                    }
+                    behindFullscreenActivity = updateBehindFullscreen(stackInvisible,
+                            behindFullscreenActivity, task, r);
                 } else {
-                    if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
-                            "Make invisible? " + r + " finishing=" + r.finishing
-                            + " state=" + r.state + " stackInvisible=" + stackInvisible
-                            + " behindFullscreenActivity=" + behindFullscreenActivity);
-                    // Now for any activities that aren't visible to the user, make
-                    // sure they no longer are keeping the screen frozen.
-                    if (r.visible) {
-                        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Making invisible: " + r);
-                        try {
-                            setVisible(r, false);
-                            switch (r.state) {
-                                case STOPPING:
-                                case STOPPED:
-                                    if (r.app != null && r.app.thread != null) {
-                                        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
-                                                "Scheduling invisibility: " + r);
-                                        r.app.thread.scheduleWindowVisibility(r.appToken, false);
-                                    }
-                                    break;
-
-                                case INITIALIZING:
-                                case RESUMED:
-                                case PAUSING:
-                                case PAUSED:
-                                    // This case created for transitioning activities from
-                                    // translucent to opaque {@link Activity#convertToOpaque}.
-                                    if (getVisibleBehindActivity() == r) {
-                                        releaseBackgroundResources(r);
-                                    } else {
-                                        if (!mStackSupervisor.mStoppingActivities.contains(r)) {
-                                            mStackSupervisor.mStoppingActivities.add(r);
-                                        }
-                                        mStackSupervisor.scheduleIdleLocked();
-                                    }
-                                    break;
-
-                                default:
-                                    break;
-                            }
-                        } catch (Exception e) {
-                            // Just skip on any failure; we'll make it
-                            // visible when it next restarts.
-                            Slog.w(TAG, "Exception thrown making hidden: "
-                                    + r.intent.getComponent(), e);
-                        }
-                    } else {
-                        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Already invisible: " + r);
-                    }
+                    becomeInvisible(stackInvisible, behindFullscreenActivity, r);
                 }
             }
             if (mStackId == FREEFORM_WORKSPACE_STACK_ID) {
@@ -1615,6 +1494,147 @@
         }
     }
 
+    private void checkTranslucentActivityWaiting(ActivityRecord top) {
+        if (mTranslucentActivityWaiting != top) {
+            mUndrawnActivitiesBelowTopTranslucent.clear();
+            if (mTranslucentActivityWaiting != null) {
+                // Call the callback with a timeout indication.
+                notifyActivityDrawnLocked(null);
+                mTranslucentActivityWaiting = null;
+            }
+            mHandler.removeMessages(TRANSLUCENT_TIMEOUT_MSG);
+        }
+    }
+
+    private boolean makeVisibleAndRestartIfNeeded(ActivityRecord starting, int configChanges,
+            ActivityRecord top, boolean noStackActivityResumed, ActivityRecord r) {
+        // We need to make sure the app is running if it's the top, or it is just made visible from
+        // invisible. If the app is already visible, it must have died while it was visible. In this
+        // case, we'll show the dead window but will not restart the app. Otherwise we could end up
+        // thrashing.
+        if (r == top || !r.visible) {
+            // This activity needs to be visible, but isn't even running...
+            // get it started and resume if no other stack in this stack is resumed.
+            if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Start and freeze screen for " + r);
+            if (r != starting) {
+                r.startFreezingScreenLocked(r.app, configChanges);
+            }
+            if (!r.visible || r.mLaunchTaskBehind) {
+                if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Starting and making visible: " + r);
+                setVisible(r, true);
+            }
+            if (r != starting) {
+                mStackSupervisor.startSpecificActivityLocked(r, noStackActivityResumed, false);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private void becomeInvisible(boolean stackInvisible, boolean behindFullscreenActivity,
+            ActivityRecord r) {
+        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Make invisible? " + r + " finishing="
+                + r.finishing + " state=" + r.state + " stackInvisible=" + stackInvisible
+                + " behindFullscreenActivity=" + behindFullscreenActivity);
+        if (!r.visible) {
+            if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Already invisible: " + r);
+            return;
+        }
+        // Now for any activities that aren't visible to the user, make sure they no longer are
+        // keeping the screen frozen.
+        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Making invisible: " + r);
+        try {
+            setVisible(r, false);
+            switch (r.state) {
+                case STOPPING:
+                case STOPPED:
+                    if (r.app != null && r.app.thread != null) {
+                        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
+                                "Scheduling invisibility: " + r);
+                        r.app.thread.scheduleWindowVisibility(r.appToken, false);
+                    }
+                    break;
+
+                case INITIALIZING:
+                case RESUMED:
+                case PAUSING:
+                case PAUSED:
+                    // This case created for transitioning activities from
+                    // translucent to opaque {@link Activity#convertToOpaque}.
+                    if (getVisibleBehindActivity() == r) {
+                        releaseBackgroundResources(r);
+                    } else {
+                        if (!mStackSupervisor.mStoppingActivities.contains(r)) {
+                            mStackSupervisor.mStoppingActivities.add(r);
+                        }
+                        mStackSupervisor.scheduleIdleLocked();
+                    }
+                    break;
+
+                default:
+                    break;
+            }
+        } catch (Exception e) {
+            // Just skip on any failure; we'll make it visible when it next restarts.
+            Slog.w(TAG, "Exception thrown making hidden: " + r.intent.getComponent(), e);
+        }
+    }
+
+    private boolean updateBehindFullscreen(boolean stackInvisible, boolean behindFullscreenActivity,
+            TaskRecord task, ActivityRecord r) {
+        if (r.fullscreen) {
+            // At this point, nothing else needs to be shown in this task.
+            behindFullscreenActivity = true;
+            if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Fullscreen: at " + r
+                    + " stackInvisible=" + stackInvisible
+                    + " behindFullscreenActivity=" + behindFullscreenActivity);
+        } else if (!isHomeStack() && r.frontOfTask && task.isOverHomeStack()) {
+            behindFullscreenActivity = true;
+            if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Showing home: at " + r
+                    + " stackInvisible=" + stackInvisible
+                    + " behindFullscreenActivity=" + behindFullscreenActivity);
+        }
+        return behindFullscreenActivity;
+    }
+
+    private void becomeVisible(ActivityRecord starting, ActivityRecord r) {
+        // This activity is not currently visible, but is running. Tell it to become visible.
+        r.visible = true;
+        if (r.state != ActivityState.RESUMED && r != starting) {
+            // If this activity is paused, tell it to now show its window.
+            if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
+                    "Making visible and scheduling visibility: " + r);
+            try {
+                if (mTranslucentActivityWaiting != null) {
+                    r.updateOptionsLocked(r.returningOptions);
+                    mUndrawnActivitiesBelowTopTranslucent.add(r);
+                }
+                setVisible(r, true);
+                r.sleeping = false;
+                r.app.pendingUiClean = true;
+                r.app.thread.scheduleWindowVisibility(r.appToken, true);
+                r.stopFreezingScreenLocked(false);
+            } catch (Exception e) {
+                // Just skip on any failure; we'll make it
+                // visible when it next restarts.
+                Slog.w(TAG, "Exception thrown making visibile: " + r.intent.getComponent(), e);
+            }
+        }
+    }
+
+    private boolean alreadyVisible(ActivityRecord r) {
+        // If this activity is already visible, then there is nothing else to do here.
+        if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Skipping: already visible at " + r);
+        r.stopFreezingScreenLocked(false);
+        try {
+            if (r.returningOptions != null) {
+                r.app.thread.scheduleOnNewActivityOptions(r.appToken, r.returningOptions);
+            }
+        } catch(RemoteException e) {
+        }
+        return r.state == ActivityState.RESUMED;
+    }
+
     void convertActivityToTranslucent(ActivityRecord r) {
         mTranslucentActivityWaiting = r;
         mUndrawnActivitiesBelowTopTranslucent.clear();
@@ -3103,6 +3123,9 @@
             // If the activity is PAUSING, we will complete the finish once
             // it is done pausing; else we can just directly finish it here.
             if (DEBUG_PAUSE) Slog.v(TAG_PAUSE, "Finish not pausing: " + r);
+            if (r.visible) {
+                mWindowManager.setAppVisibility(r.appToken, false);
+            }
             return finishCurrentActivityLocked(r, FINISH_AFTER_PAUSE, oomAdj) == null;
         } else {
             if (DEBUG_PAUSE) Slog.v(TAG_PAUSE, "Finish waiting for pause of: " + r);
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 4fc8454..13d3ee1 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -3340,6 +3340,12 @@
             return;
         }
 
+        if (task.stack != null && task.stack.mStackId == stackId) {
+            // You are already in the right stack silly...
+            Slog.i(TAG, "moveTaskToStack: taskId=" + taskId + " already in stackId=" + stackId);
+            return;
+        }
+
         final ActivityRecord topActivity = task.getTopActivity();
         if (StackId.preserveWindowOnTaskMove(stackId) && topActivity != null) {
             // We are about to relaunch the activity because its configuration changed due to
@@ -3356,15 +3362,13 @@
 
         // Make sure the task has the appropriate bounds/size for the stack it is in.
         if (stackId == FULLSCREEN_WORKSPACE_STACK_ID && task.mBounds != null) {
-            resizeTaskLocked(task, stack.mBounds,
-                    RESIZE_MODE_SYSTEM, !PRESERVE_WINDOWS);
+            resizeTaskLocked(task, stack.mBounds, RESIZE_MODE_SYSTEM, !PRESERVE_WINDOWS);
         } else if (stackId == FREEFORM_WORKSPACE_STACK_ID
                 && task.mBounds == null && task.mLastNonFullscreenBounds != null) {
             resizeTaskLocked(task, task.mLastNonFullscreenBounds,
                     RESIZE_MODE_SYSTEM, !PRESERVE_WINDOWS);
         } else if (stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID) {
-            resizeTaskLocked(task, stack.mBounds,
-                    RESIZE_MODE_SYSTEM, !PRESERVE_WINDOWS);
+            resizeTaskLocked(task, stack.mBounds, RESIZE_MODE_SYSTEM, !PRESERVE_WINDOWS);
         }
 
         // The task might have already been running and its visibility needs to be synchronized with
diff --git a/services/core/java/com/android/server/am/ProcessRecord.java b/services/core/java/com/android/server/am/ProcessRecord.java
index b77eec8..4bfe300 100644
--- a/services/core/java/com/android/server/am/ProcessRecord.java
+++ b/services/core/java/com/android/server/am/ProcessRecord.java
@@ -136,6 +136,7 @@
     long curCpuTime;            // How long proc has run CPU most recently
     long lastRequestedGc;       // When we last asked the app to do a gc
     long lastLowMemory;         // When we last told the app that memory is low
+    long lastProviderTime;      // The last time someone else was using a provider in this process.
     boolean reportLowMemory;    // Set to true when waiting to report low mem
     boolean empty;              // Is this an empty background process?
     boolean cached;             // Is this a cached process?
@@ -317,6 +318,11 @@
                     pw.print(" foregroundActivities="); pw.print(foregroundActivities);
                     pw.print(" (rep="); pw.print(repForegroundActivities); pw.println(")");
         }
+        if (lastProviderTime > 0) {
+            pw.print(prefix); pw.print("lastProviderTime=");
+            TimeUtils.formatDuration(lastProviderTime, now, pw);
+            pw.println();
+        }
         if (hasStartedServices) {
             pw.print(prefix); pw.print("hasStartedServices="); pw.println(hasStartedServices);
         }
diff --git a/services/core/java/com/android/server/am/TaskRecord.java b/services/core/java/com/android/server/am/TaskRecord.java
index 096c85e..b214080 100644
--- a/services/core/java/com/android/server/am/TaskRecord.java
+++ b/services/core/java/com/android/server/am/TaskRecord.java
@@ -572,8 +572,8 @@
      * Removes all associated thumbnail data when a task is removed or pruned from recents.
      */
     void disposeThumbnail() {
+        mLastThumbnailInfo.reset();
         mLastThumbnail = null;
-        mLastThumbnailInfo = null;
         lastDescription = null;
     }
 
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index 058d681..fe9fe50 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -1068,6 +1068,7 @@
         if (DEBUG_VOL) {
             Log.d(TAG, String.format("Master mute %s, user=%d", masterMute, currentUser));
         }
+        setSystemAudioMute(masterMute);
         AudioSystem.setMasterMute(masterMute);
         broadcastMasterMuteStatus(masterMute);
 
diff --git a/services/core/java/com/android/server/connectivity/Tethering.java b/services/core/java/com/android/server/connectivity/Tethering.java
index c1aaf07..6687412 100644
--- a/services/core/java/com/android/server/connectivity/Tethering.java
+++ b/services/core/java/com/android/server/connectivity/Tethering.java
@@ -1353,18 +1353,9 @@
                     if (iface != null) {
                         String[] dnsServers = mDefaultDnsServers;
                         Collection<InetAddress> dnses = linkProperties.getDnsServers();
-                        if (dnses != null) {
-                            // we currently only handle IPv4
-                            ArrayList<InetAddress> v4Dnses =
-                                    new ArrayList<InetAddress>(dnses.size());
-                            for (InetAddress dnsAddress : dnses) {
-                                if (dnsAddress instanceof Inet4Address) {
-                                    v4Dnses.add(dnsAddress);
-                                }
-                            }
-                            if (v4Dnses.size() > 0) {
-                                dnsServers = NetworkUtils.makeStrings(v4Dnses);
-                            }
+                        if (dnses != null && !dnses.isEmpty()) {
+                            // TODO: remove this invocation of NetworkUtils.makeStrings().
+                            dnsServers = NetworkUtils.makeStrings(dnses);
                         }
                         try {
                             Network network = getConnectivityManager().getNetworkForType(upType);
diff --git a/services/core/java/com/android/server/media/MediaSessionService.java b/services/core/java/com/android/server/media/MediaSessionService.java
index 7028fa6..90dd10ea 100644
--- a/services/core/java/com/android/server/media/MediaSessionService.java
+++ b/services/core/java/com/android/server/media/MediaSessionService.java
@@ -948,8 +948,8 @@
                 // Launch the last PendingIntent we had with priority
                 int userId = ActivityManager.getCurrentUser();
                 UserRecord user = mUserRecords.get(userId);
-                if (user.mLastMediaButtonReceiver != null
-                        || user.mRestoredMediaButtonReceiver != null) {
+                if (user != null && (user.mLastMediaButtonReceiver != null
+                        || user.mRestoredMediaButtonReceiver != null)) {
                     if (DEBUG) {
                         Log.d(TAG, "Sending media key to last known PendingIntent "
                                 + user.mLastMediaButtonReceiver + " or restored Intent "
diff --git a/services/core/java/com/android/server/net/LockdownVpnTracker.java b/services/core/java/com/android/server/net/LockdownVpnTracker.java
index 9db6a06..5b1cedc 100644
--- a/services/core/java/com/android/server/net/LockdownVpnTracker.java
+++ b/services/core/java/com/android/server/net/LockdownVpnTracker.java
@@ -239,9 +239,7 @@
             throw new RuntimeException("Problem setting firewall rules", e);
         }
 
-        synchronized (mStateLock) {
-            handleStateChangedLocked();
-        }
+        handleStateChangedLocked();
     }
 
     public void shutdown() {
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 64628aa..add7a98 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -105,6 +105,7 @@
 import android.content.ServiceConnection;
 import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
+import android.content.pm.AppsQueryHelper;
 import android.content.pm.FeatureInfo;
 import android.content.pm.IOnPermissionsChangeListener;
 import android.content.pm.IPackageDataObserver;
@@ -1810,10 +1811,48 @@
             boolean factoryTest, boolean onlyCore) {
         PackageManagerService m = new PackageManagerService(context, installer,
                 factoryTest, onlyCore);
+        m.enableSystemUserApps();
         ServiceManager.addService("package", m);
         return m;
     }
 
+    private void enableSystemUserApps() {
+        if (!UserManager.isSplitSystemUser()) {
+            return;
+        }
+        // For system user, enable apps based on the following conditions:
+        // - app is whitelisted or belong to one of these groups:
+        //   -- system app which has no launcher icons
+        //   -- system app which has INTERACT_ACROSS_USERS permission
+        //   -- system IME app
+        // - app is not in the blacklist
+        AppsQueryHelper queryHelper = new AppsQueryHelper(this);
+        Set<String> enableApps = new ArraySet<>();
+        enableApps.addAll(queryHelper.queryApps(AppsQueryHelper.GET_NON_LAUNCHABLE_APPS
+                | AppsQueryHelper.GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM
+                | AppsQueryHelper.GET_IMES, /* systemAppsOnly */ true, UserHandle.SYSTEM));
+        ArraySet<String> wlApps = SystemConfig.getInstance().getSystemUserWhitelistedApps();
+        enableApps.addAll(wlApps);
+        ArraySet<String> blApps = SystemConfig.getInstance().getSystemUserBlacklistedApps();
+        enableApps.removeAll(blApps);
+
+        List<String> systemApps = queryHelper.queryApps(0, /* systemAppsOnly */ true,
+                UserHandle.SYSTEM);
+        final int systemAppsSize = systemApps.size();
+        synchronized (mPackages) {
+            for (int i = 0; i < systemAppsSize; i++) {
+                String pName = systemApps.get(i);
+                PackageSetting pkgSetting = mSettings.mPackages.get(pName);
+                // Should not happen, but we shouldn't be failing if it does
+                if (pkgSetting == null) {
+                    continue;
+                }
+                boolean installed = enableApps.contains(pName);
+                pkgSetting.setInstalled(installed, UserHandle.USER_SYSTEM);
+            }
+        }
+    }
+
     static String[] splitString(String str, char sep) {
         int count = 1;
         int i = 0;
@@ -1917,8 +1956,7 @@
             mUserAppDataDir = new File(dataDir, "user");
             mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
 
-            sUserManager = new UserManagerService(context, this,
-                    mInstallLock, mPackages);
+            sUserManager = new UserManagerService(context, this, mPackages);
 
             // Propagate permission configuration in to package manager.
             ArrayMap<String, SystemConfig.PermissionEntry> permConfig
@@ -12770,8 +12808,14 @@
                 ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
         try {
             if (dpm != null) {
+                final ComponentName deviceOwnerComponentName = dpm.getDeviceOwner();
+                final String deviceOwnerPackageName = deviceOwnerComponentName == null ? null
+                        : deviceOwnerComponentName.getPackageName();
                 // Does the package contains the device owner?
-                if (dpm.isDeviceOwnerPackage(packageName)) {
+                // TODO Do we have to do it even if userId != UserHandle.USER_ALL?  Otherwise,
+                // this check is probably not needed, since DO should be registered as a device
+                // admin on some user too. (Original bug for this: b/17657954)
+                if (packageName.equals(deviceOwnerPackageName)) {
                     return true;
                 }
                 // Does it contain a device admin for any user?
@@ -16308,23 +16352,26 @@
     }
 
     /** Called by UserManagerService */
-    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
-        mDirtyUsers.remove(userHandle);
-        mSettings.removeUserLPw(userHandle);
-        mPendingBroadcasts.remove(userHandle);
-        if (mInstaller != null) {
-            // Technically, we shouldn't be doing this with the package lock
-            // held.  However, this is very rare, and there is already so much
-            // other disk I/O going on, that we'll let it slide for now.
-            final StorageManager storage = mContext.getSystemService(StorageManager.class);
-            for (VolumeInfo vol : storage.getWritablePrivateVolumes()) {
-                final String volumeUuid = vol.getFsUuid();
-                if (DEBUG_INSTALL) Slog.d(TAG, "Removing user data on volume " + volumeUuid);
-                mInstaller.removeUserDataDirs(volumeUuid, userHandle);
+    void cleanUpUser(UserManagerService userManager, int userHandle) {
+        synchronized (mPackages) {
+            mDirtyUsers.remove(userHandle);
+            mUserNeedsBadging.delete(userHandle);
+            mSettings.removeUserLPw(userHandle);
+            mPendingBroadcasts.remove(userHandle);
+        }
+        synchronized (mInstallLock) {
+            if (mInstaller != null) {
+                final StorageManager storage = mContext.getSystemService(StorageManager.class);
+                for (VolumeInfo vol : storage.getWritablePrivateVolumes()) {
+                    final String volumeUuid = vol.getFsUuid();
+                    if (DEBUG_INSTALL) Slog.d(TAG, "Removing user data on volume " + volumeUuid);
+                    mInstaller.removeUserDataDirs(volumeUuid, userHandle);
+                }
+            }
+            synchronized (mPackages) {
+                removeUnusedPackagesLILPw(userManager, userHandle);
             }
         }
-        mUserNeedsBadging.delete(userHandle);
-        removeUnusedPackagesLILPw(userManager, userHandle);
     }
 
     /**
@@ -16374,12 +16421,18 @@
     }
 
     /** Called by UserManagerService */
-    void createNewUserLILPw(int userHandle) {
+    void createNewUser(int userHandle) {
         if (mInstaller != null) {
-            mInstaller.createUserConfig(userHandle);
-            mSettings.createNewUserLILPw(this, mInstaller, userHandle);
-            applyFactoryDefaultBrowserLPw(userHandle);
-            primeDomainVerificationsLPw(userHandle);
+            synchronized (mInstallLock) {
+                synchronized (mPackages) {
+                    mInstaller.createUserConfig(userHandle);
+                    mSettings.createNewUserLILPw(this, mInstaller, userHandle);
+                }
+            }
+            synchronized (mPackages) {
+                applyFactoryDefaultBrowserLPw(userHandle);
+                primeDomainVerificationsLPw(userHandle);
+            }
         }
     }
 
diff --git a/services/core/java/com/android/server/pm/SELinuxMMAC.java b/services/core/java/com/android/server/pm/SELinuxMMAC.java
index 5d8b1d2..903d12b 100644
--- a/services/core/java/com/android/server/pm/SELinuxMMAC.java
+++ b/services/core/java/com/android/server/pm/SELinuxMMAC.java
@@ -103,6 +103,9 @@
     // Append privapp to existing seinfo label
     private static final String PRIVILEGED_APP_STR = ":privapp";
 
+    // Append autoplay to existing seinfo label
+    private static final String AUTOPLAY_APP_STR = ":autoplayapp";
+
     /**
      * Load the mac_permissions.xml file containing all seinfo assignments used to
      * label apps. The loaded mac_permissions.xml file is determined by the
@@ -316,6 +319,9 @@
             }
         }
 
+        if (pkg.applicationInfo.isAutoPlayApp())
+            pkg.applicationInfo.seinfo += AUTOPLAY_APP_STR;
+
         if (pkg.applicationInfo.isPrivilegedApp())
             pkg.applicationInfo.seinfo += PRIVILEGED_APP_STR;
 
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 3a1d2de..ab0b182 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -97,8 +97,7 @@
  *
  * Method naming convention:
  * <ul>
- * <li> Methods suffixed with "LILP" should be called within {@link #mInstallLock} and
- * {@link #mPackagesLock} locks obtained in the respective order.
+ * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock.
  * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock.
  * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock.
  * </ul>
@@ -164,7 +163,6 @@
 
     private final Context mContext;
     private final PackageManagerService mPm;
-    private final Object mInstallLock;
     private final Object mPackagesLock;
     // Short-term lock for internal state, when interaction/sync with PM is not required
     private final Object mUsersLock = new Object();
@@ -215,6 +213,7 @@
     @GuardedBy("mRestrictionsLock")
     private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>();
 
+    @GuardedBy("mGuestRestrictions")
     private final Bundle mGuestRestrictions = new Bundle();
 
     /**
@@ -226,6 +225,7 @@
 
     @GuardedBy("mUsersLock")
     private int[] mUserIds;
+    @GuardedBy("mPackagesLock")
     private int mNextSerialNumber;
     private int mUserVersion = 0;
 
@@ -245,11 +245,9 @@
         }
     }
 
-    /**
-     * Available for testing purposes.
-     */
-    UserManagerService(File dataDir, File baseUserPath) {
-        this(null, null, new Object(), new Object(), dataDir, baseUserPath);
+    @VisibleForTesting
+    UserManagerService(File dataDir) {
+        this(null, null, new Object(), dataDir);
     }
 
     /**
@@ -257,68 +255,53 @@
      * associated with the package manager, and the given lock is the
      * package manager's own lock.
      */
-    UserManagerService(Context context, PackageManagerService pm,
-            Object installLock, Object packagesLock) {
-        this(context, pm, installLock, packagesLock,
-                Environment.getDataDirectory(),
-                new File(Environment.getDataDirectory(), "user"));
+    UserManagerService(Context context, PackageManagerService pm, Object packagesLock) {
+        this(context, pm, packagesLock, Environment.getDataDirectory());
     }
 
-    /**
-     * Available for testing purposes.
-     */
     private UserManagerService(Context context, PackageManagerService pm,
-            Object installLock, Object packagesLock,
-            File dataDir, File baseUserPath) {
+            Object packagesLock, File dataDir) {
         mContext = context;
         mPm = pm;
-        mInstallLock = installLock;
         mPackagesLock = packagesLock;
         mHandler = new MainHandler();
-        synchronized (mInstallLock) {
-            synchronized (mPackagesLock) {
-                mUsersDir = new File(dataDir, USER_INFO_DIR);
-                mUsersDir.mkdirs();
-                // Make zeroth user directory, for services to migrate their files to that location
-                File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM));
-                userZeroDir.mkdirs();
-                FileUtils.setPermissions(mUsersDir.toString(),
-                        FileUtils.S_IRWXU|FileUtils.S_IRWXG
-                        |FileUtils.S_IROTH|FileUtils.S_IXOTH,
-                        -1, -1);
-                mUserListFile = new File(mUsersDir, USER_LIST_FILENAME);
-                initDefaultGuestRestrictions();
-                readUserListLILP();
-                sInstance = this;
-            }
+        synchronized (mPackagesLock) {
+            mUsersDir = new File(dataDir, USER_INFO_DIR);
+            mUsersDir.mkdirs();
+            // Make zeroth user directory, for services to migrate their files to that location
+            File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM));
+            userZeroDir.mkdirs();
+            FileUtils.setPermissions(mUsersDir.toString(),
+                    FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH,
+                    -1, -1);
+            mUserListFile = new File(mUsersDir, USER_LIST_FILENAME);
+            initDefaultGuestRestrictions();
+            readUserListLP();
+            sInstance = this;
         }
         mLocalService = new LocalService();
         LocalServices.addService(UserManagerInternal.class, mLocalService);
     }
 
     void systemReady() {
-        synchronized (mInstallLock) {
-            synchronized (mPackagesLock) {
-                synchronized (mUsersLock) {
-                    // Prune out any partially created/partially removed users.
-                    ArrayList<UserInfo> partials = new ArrayList<UserInfo>();
-                    final int userSize = mUsers.size();
-                    for (int i = 0; i < userSize; i++) {
-                        UserInfo ui = mUsers.valueAt(i);
-                        if ((ui.partial || ui.guestToRemove) && i != 0) {
-                            partials.add(ui);
-                        }
-                    }
-                    final int partialsSize = partials.size();
-                    for (int i = 0; i < partialsSize; i++) {
-                        UserInfo ui = partials.get(i);
-                        Slog.w(LOG_TAG, "Removing partially created user " + ui.id
-                                + " (name=" + ui.name + ")");
-                        removeUserStateLILP(ui.id);
-                    }
+        // Prune out any partially created/partially removed users.
+        ArrayList<UserInfo> partials = new ArrayList<>();
+        synchronized (mUsersLock) {
+            final int userSize = mUsers.size();
+            for (int i = 0; i < userSize; i++) {
+                UserInfo ui = mUsers.valueAt(i);
+                if ((ui.partial || ui.guestToRemove) && i != 0) {
+                    partials.add(ui);
                 }
             }
         }
+        final int partialsSize = partials.size();
+        for (int i = 0; i < partialsSize; i++) {
+            UserInfo ui = partials.get(i);
+            Slog.w(LOG_TAG, "Removing partially created user " + ui.id
+                    + " (name=" + ui.name + ")");
+            removeUserState(ui.id);
+        }
         onUserForeground(UserHandle.USER_SYSTEM);
         mAppOpsService = IAppOpsService.Stub.asInterface(
                 ServiceManager.getService(Context.APP_OPS_SERVICE));
@@ -627,17 +610,22 @@
 
     public void makeInitialized(int userId) {
         checkManageUsersPermission("makeInitialized");
-        synchronized (mPackagesLock) {
-            UserInfo info = getUserInfoNoChecks(userId);
+        boolean scheduleWriteUser = false;
+        UserInfo info;
+        synchronized (mUsersLock) {
+            info = mUsers.get(userId);
             if (info == null || info.partial) {
                 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId);
-                // TODO Check if we should return here instead of a null check below
+                return;
             }
-            if (info != null && (info.flags&UserInfo.FLAG_INITIALIZED) == 0) {
+            if ((info.flags & UserInfo.FLAG_INITIALIZED) == 0) {
                 info.flags |= UserInfo.FLAG_INITIALIZED;
-                scheduleWriteUser(info);
+                scheduleWriteUser = true;
             }
         }
+        if (scheduleWriteUser) {
+            scheduleWriteUser(info);
+        }
     }
 
     /**
@@ -645,17 +633,18 @@
      * restrictions.
      */
     private void initDefaultGuestRestrictions() {
-        if (mGuestRestrictions.isEmpty()) {
-            mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true);
-            mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true);
+        synchronized (mGuestRestrictions) {
+            if (mGuestRestrictions.isEmpty()) {
+                mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true);
+                mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true);
+            }
         }
     }
 
     @Override
     public Bundle getDefaultGuestRestrictions() {
         checkManageUsersPermission("getDefaultGuestRestrictions");
-        // TODO Switch to mGuestRestrictions for locking
-        synchronized (mPackagesLock) {
+        synchronized (mGuestRestrictions) {
             return new Bundle(mGuestRestrictions);
         }
     }
@@ -663,12 +652,12 @@
     @Override
     public void setDefaultGuestRestrictions(Bundle restrictions) {
         checkManageUsersPermission("setDefaultGuestRestrictions");
-        synchronized (mInstallLock) {
-            synchronized (mPackagesLock) {
-                mGuestRestrictions.clear();
-                mGuestRestrictions.putAll(restrictions);
-                writeUserListLILP();
-            }
+        synchronized (mGuestRestrictions) {
+            mGuestRestrictions.clear();
+            mGuestRestrictions.putAll(restrictions);
+        }
+        synchronized (mPackagesLock) {
+            writeUserListLP();
         }
     }
 
@@ -775,7 +764,7 @@
             Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId)
                     != newRestrictions);
             mBaseUserRestrictions.put(userId, newRestrictions);
-            scheduleWriteUser(mUsers.get(userId));
+            scheduleWriteUser(getUserInfoNoChecks(userId));
         }
 
         final Bundle effective = computeEffectiveUserRestrictionsLR(userId);
@@ -996,9 +985,9 @@
         }
     }
 
-    private void readUserListLILP() {
+    private void readUserListLP() {
         if (!mUserListFile.exists()) {
-            fallbackToSingleUserLILP();
+            fallbackToSingleUserLP();
             return;
         }
         FileInputStream fis = null;
@@ -1015,7 +1004,7 @@
 
             if (type != XmlPullParser.START_TAG) {
                 Slog.e(LOG_TAG, "Unable to read user list");
-                fallbackToSingleUserLILP();
+                fallbackToSingleUserLP();
                 return;
             }
 
@@ -1036,7 +1025,7 @@
                     final String name = parser.getName();
                     if (name.equals(TAG_USER)) {
                         String id = parser.getAttributeValue(null, ATTR_ID);
-                        UserInfo user = readUserLILP(Integer.parseInt(id));
+                        UserInfo user = readUserLP(Integer.parseInt(id));
 
                         if (user != null) {
                             synchronized (mUsersLock) {
@@ -1051,8 +1040,10 @@
                                 && type != XmlPullParser.END_TAG) {
                             if (type == XmlPullParser.START_TAG) {
                                 if (parser.getName().equals(TAG_RESTRICTIONS)) {
-                                    UserRestrictionsUtils
-                                            .readRestrictions(parser, mGuestRestrictions);
+                                    synchronized (mGuestRestrictions) {
+                                        UserRestrictionsUtils
+                                                .readRestrictions(parser, mGuestRestrictions);
+                                    }
                                 }
                                 break;
                             }
@@ -1061,25 +1052,18 @@
                 }
             }
             updateUserIds();
-            upgradeIfNecessaryLILP();
-        } catch (IOException ioe) {
-            fallbackToSingleUserLILP();
-        } catch (XmlPullParserException pe) {
-            fallbackToSingleUserLILP();
+            upgradeIfNecessaryLP();
+        } catch (IOException | XmlPullParserException e) {
+            fallbackToSingleUserLP();
         } finally {
-            if (fis != null) {
-                try {
-                    fis.close();
-                } catch (IOException e) {
-                }
-            }
+            IoUtils.closeQuietly(fis);
         }
     }
 
     /**
      * Upgrade steps between versions, either for fixing bugs or changing the data format.
      */
-    private void upgradeIfNecessaryLILP() {
+    private void upgradeIfNecessaryLP() {
         int userVersion = mUserVersion;
         if (userVersion < 1) {
             // Assign a proper name for the owner, if not initialized correctly before
@@ -1132,11 +1116,11 @@
                     + USER_VERSION);
         } else {
             mUserVersion = userVersion;
-            writeUserListLILP();
+            writeUserListLP();
         }
     }
 
-    private void fallbackToSingleUserLILP() {
+    private void fallbackToSingleUserLP() {
         int flags = UserInfo.FLAG_INITIALIZED;
         // In split system user mode, the admin and primary flags are assigned to the first human
         // user.
@@ -1161,7 +1145,7 @@
         updateUserIds();
         initDefaultGuestRestrictions();
 
-        writeUserListLILP();
+        writeUserListLP();
         writeUserLP(system);
     }
 
@@ -1247,8 +1231,7 @@
      *   <user id="2"></user>
      * </users>
      */
-    private void writeUserListLILP() {
-        // TODO Investigate removing a dependency on mInstallLock
+    private void writeUserListLP() {
         FileOutputStream fos = null;
         AtomicFile userListFile = new AtomicFile(mUserListFile);
         try {
@@ -1266,8 +1249,10 @@
             serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion));
 
             serializer.startTag(null, TAG_GUEST_RESTRICTIONS);
-            UserRestrictionsUtils
-                    .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS);
+            synchronized (mGuestRestrictions) {
+                UserRestrictionsUtils
+                        .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS);
+            }
             serializer.endTag(null, TAG_GUEST_RESTRICTIONS);
             int[] userIdsToWrite;
             synchronized (mUsersLock) {
@@ -1293,7 +1278,7 @@
         }
     }
 
-    private UserInfo readUserLILP(int id) {
+    private UserInfo readUserLP(int id) {
         int flags = 0;
         int serialNumber = id;
         String name = null;
@@ -1468,8 +1453,7 @@
     }
 
     private UserInfo createUserInternal(String name, int flags, int parentId) {
-        if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(
-                UserManager.DISALLOW_ADD_USER, false)) {
+        if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) {
             Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled.");
             return null;
         }
@@ -1480,120 +1464,114 @@
         final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0;
         final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0;
         final long ident = Binder.clearCallingIdentity();
-        UserInfo userInfo = null;
+        UserInfo userInfo;
         final int userId;
         try {
-            synchronized (mInstallLock) {
-                synchronized (mPackagesLock) {
-                    UserInfo parent = null;
-                    if (parentId != UserHandle.USER_NULL) {
-                        synchronized (mUsersLock) {
-                            parent = getUserInfoLU(parentId);
-                        }
-                        if (parent == null) return null;
+            synchronized (mPackagesLock) {
+                UserInfo parent = null;
+                if (parentId != UserHandle.USER_NULL) {
+                    synchronized (mUsersLock) {
+                        parent = getUserInfoLU(parentId);
                     }
-                    if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) {
-                        Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId);
+                    if (parent == null) return null;
+                }
+                if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) {
+                    Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId);
+                    return null;
+                }
+                if (!isGuest && !isManagedProfile && isUserLimitReached()) {
+                    // If we're not adding a guest user or a managed profile and the limit has
+                    // been reached, cannot add a user.
+                    return null;
+                }
+                // If we're adding a guest and there already exists one, bail.
+                if (isGuest && findCurrentGuestUser() != null) {
+                    return null;
+                }
+                // In legacy mode, restricted profile's parent can only be the owner user
+                if (isRestricted && !UserManager.isSplitSystemUser()
+                        && (parentId != UserHandle.USER_SYSTEM)) {
+                    Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner");
+                    return null;
+                }
+                if (isRestricted && UserManager.isSplitSystemUser()) {
+                    if (parent == null) {
+                        Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be "
+                                + "specified");
                         return null;
                     }
-                    if (!isGuest && !isManagedProfile && isUserLimitReached()) {
-                        // If we're not adding a guest user or a managed profile and the limit has
-                        // been reached, cannot add a user.
+                    if (!parent.canHaveProfile()) {
+                        Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be "
+                                + "created for the specified parent user id " + parentId);
                         return null;
                     }
-                    // If we're adding a guest and there already exists one, bail.
-                    if (isGuest && findCurrentGuestUser() != null) {
-                        return null;
+                }
+                // In split system user mode, we assign the first human user the primary flag.
+                // And if there is no device owner, we also assign the admin flag to primary user.
+                if (UserManager.isSplitSystemUser()
+                        && !isGuest && !isManagedProfile && getPrimaryUser() == null) {
+                    flags |= UserInfo.FLAG_PRIMARY;
+                    DevicePolicyManager devicePolicyManager = (DevicePolicyManager)
+                            mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
+                    if (devicePolicyManager == null
+                            || devicePolicyManager.getDeviceOwner() == null) {
+                        flags |= UserInfo.FLAG_ADMIN;
                     }
-                    // In legacy mode, restricted profile's parent can only be the owner user
-                    if (isRestricted && !UserManager.isSplitSystemUser()
-                            && (parentId != UserHandle.USER_SYSTEM)) {
-                        Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner");
-                        return null;
-                    }
-                    if (isRestricted && UserManager.isSplitSystemUser()) {
-                        if (parent == null) {
-                            Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be "
-                                    + "specified");
-                            return null;
-                        }
-                        if (!parent.canHaveProfile()) {
-                            Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be "
-                                    + "created for the specified parent user id " + parentId);
-                            return null;
-                        }
-                    }
-                    // In split system user mode, we assign the first human user the primary flag.
-                    // And if there is no device owner, we also assign the admin flag to primary
-                    // user.
-                    if (UserManager.isSplitSystemUser()
-                            && !isGuest && !isManagedProfile && getPrimaryUser() == null) {
-                        flags |= UserInfo.FLAG_PRIMARY;
-                        DevicePolicyManager devicePolicyManager = (DevicePolicyManager)
-                                mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
-                        if (devicePolicyManager == null
-                                || devicePolicyManager.getDeviceOwner() == null) {
-                            flags |= UserInfo.FLAG_ADMIN;
-                        }
-                    }
-                    userId = getNextAvailableId();
-                    userInfo = new UserInfo(userId, name, null, flags);
-                    userInfo.serialNumber = mNextSerialNumber++;
-                    long now = System.currentTimeMillis();
-                    userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0;
-                    userInfo.partial = true;
-                    Environment.getUserSystemDirectory(userInfo.id).mkdirs();
+                }
+                userId = getNextAvailableId();
+                userInfo = new UserInfo(userId, name, null, flags);
+                userInfo.serialNumber = mNextSerialNumber++;
+                long now = System.currentTimeMillis();
+                userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0;
+                userInfo.partial = true;
+                Environment.getUserSystemDirectory(userInfo.id).mkdirs();
+                synchronized (mUsersLock) {
                     mUsers.put(userId, userInfo);
-                    writeUserListLILP();
-                    if (parent != null) {
-                        if (isManagedProfile) {
-                            if (parent.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) {
-                                parent.profileGroupId = parent.id;
-                                scheduleWriteUser(parent);
-                            }
-                            userInfo.profileGroupId = parent.profileGroupId;
-                        } else if (isRestricted) {
-                            if (!parent.canHaveProfile()) {
-                                Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner");
-                            }
-                            if (parent.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) {
-                                parent.restrictedProfileParentId = parent.id;
-                                scheduleWriteUser(parent);
-                            }
-                            userInfo.restrictedProfileParentId = parent.restrictedProfileParentId;
+                }
+                writeUserListLP();
+                if (parent != null) {
+                    if (isManagedProfile) {
+                        if (parent.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) {
+                            parent.profileGroupId = parent.id;
+                            writeUserLP(parent);
                         }
-                    }
-
-                    final StorageManager storage = mContext.getSystemService(StorageManager.class);
-                    storage.createUserKey(userId, userInfo.serialNumber);
-                    for (VolumeInfo vol : storage.getWritablePrivateVolumes()) {
-                        final String volumeUuid = vol.getFsUuid();
-                        try {
-                            final File userDir = Environment.getDataUserDirectory(volumeUuid,
-                                    userId);
-                            storage.prepareUserStorage(volumeUuid, userId, userInfo.serialNumber);
-                            enforceSerialNumber(userDir, userInfo.serialNumber);
-                        } catch (IOException e) {
-                            Log.wtf(LOG_TAG, "Failed to create user directory on " + volumeUuid, e);
+                        userInfo.profileGroupId = parent.profileGroupId;
+                    } else if (isRestricted) {
+                        if (parent.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) {
+                            parent.restrictedProfileParentId = parent.id;
+                            writeUserLP(parent);
                         }
-                    }
-                    mPm.createNewUserLILPw(userId);
-                    userInfo.partial = false;
-                    scheduleWriteUser(userInfo);
-                    updateUserIds();
-                    Bundle restrictions = new Bundle();
-                    synchronized (mRestrictionsLock) {
-                        mBaseUserRestrictions.append(userId, restrictions);
+                        userInfo.restrictedProfileParentId = parent.restrictedProfileParentId;
                     }
                 }
             }
-            mPm.newUserCreated(userId);
-            if (userInfo != null) {
-                Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED);
-                addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userInfo.id);
-                mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL,
-                        android.Manifest.permission.MANAGE_USERS);
+            final StorageManager storage = mContext.getSystemService(StorageManager.class);
+            storage.createUserKey(userId, userInfo.serialNumber);
+            for (VolumeInfo vol : storage.getWritablePrivateVolumes()) {
+                final String volumeUuid = vol.getFsUuid();
+                try {
+                    final File userDir = Environment.getDataUserDirectory(volumeUuid, userId);
+                    storage.prepareUserStorage(volumeUuid, userId, userInfo.serialNumber);
+                    enforceSerialNumber(userDir, userInfo.serialNumber);
+                } catch (IOException e) {
+                    Log.wtf(LOG_TAG, "Failed to create user directory on " + volumeUuid, e);
+                }
             }
+            mPm.createNewUser(userId);
+            userInfo.partial = false;
+            synchronized (mPackagesLock) {
+                writeUserLP(userInfo);
+            }
+            updateUserIds();
+            Bundle restrictions = new Bundle();
+            synchronized (mRestrictionsLock) {
+                mBaseUserRestrictions.append(userId, restrictions);
+            }
+            mPm.newUserCreated(userId);
+            Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED);
+            addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId);
+            mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL,
+                    android.Manifest.permission.MANAGE_USERS);
         } finally {
             Binder.restoreCallingIdentity(ident);
         }
@@ -1782,11 +1760,7 @@
                                     // Clean up any ActivityManager state
                                     LocalServices.getService(ActivityManagerInternal.class)
                                             .onUserRemoved(userHandle);
-                                    synchronized (mInstallLock) {
-                                        synchronized (mPackagesLock) {
-                                            removeUserStateLILP(userHandle);
-                                        }
-                                    }
+                                    removeUserState(userHandle);
                                 }
                             }.start();
                         }
@@ -1798,10 +1772,10 @@
         }
     }
 
-    private void removeUserStateLILP(final int userHandle) {
+    private void removeUserState(final int userHandle) {
         mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle);
         // Cleanup package manager settings
-        mPm.cleanUpUserLILPw(this, userHandle);
+        mPm.cleanUpUser(this, userHandle);
 
         // Remove this user from the list
         synchronized (mUsersLock) {
@@ -1811,7 +1785,9 @@
         AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX));
         userFile.delete();
         // Update the user list
-        writeUserListLILP();
+        synchronized (mPackagesLock) {
+            writeUserListLP();
+        }
         updateUserIds();
         removeDirectoryRecursive(Environment.getUserSystemDirectory(userHandle));
     }
@@ -2146,17 +2122,15 @@
      * @param userId the user that was just foregrounded
      */
     public void onUserForeground(int userId) {
-        synchronized (mPackagesLock) {
-            UserInfo user = getUserInfoNoChecks(userId);
-            long now = System.currentTimeMillis();
-            if (user == null || user.partial) {
-                Slog.w(LOG_TAG, "userForeground: unknown user #" + userId);
-                return;
-            }
-            if (now > EPOCH_PLUS_30_YEARS) {
-                user.lastLoggedInTime = now;
-                scheduleWriteUser(user);
-            }
+        UserInfo user = getUserInfoNoChecks(userId);
+        if (user == null || user.partial) {
+            Slog.w(LOG_TAG, "userForeground: unknown user #" + userId);
+            return;
+        }
+        long now = System.currentTimeMillis();
+        if (now > EPOCH_PLUS_30_YEARS) {
+            user.lastLoggedInTime = now;
+            scheduleWriteUser(user);
         }
     }
 
@@ -2164,7 +2138,6 @@
      * Returns the next available user id, filling in any holes in the ids.
      * TODO: May not be a good idea to recycle ids, in case it results in confusion
      * for data and battery stats collection, or unexpected cross-talk.
-     * @return
      */
     private int getNextAvailableId() {
         synchronized (mUsersLock) {
@@ -2348,7 +2321,9 @@
             }
             pw.println();
             pw.println("Guest restrictions:");
-            UserRestrictionsUtils.dumpRestrictions(pw, "  ", mGuestRestrictions);
+            synchronized (mGuestRestrictions) {
+                UserRestrictionsUtils.dumpRestrictions(pw, "  ", mGuestRestrictions);
+            }
         }
     }
 
diff --git a/services/core/java/com/android/server/webkit/WebViewUpdateService.java b/services/core/java/com/android/server/webkit/WebViewUpdateService.java
index ac79b36..97713fc 100644
--- a/services/core/java/com/android/server/webkit/WebViewUpdateService.java
+++ b/services/core/java/com/android/server/webkit/WebViewUpdateService.java
@@ -54,6 +54,15 @@
                 @Override
                 public void onReceive(Context context, Intent intent) {
 
+                    // When a package is replaced we will receive two intents, one representing the
+                    // removal of the old package and one representing the addition of the new
+                    // package. We here ignore the intent representing the removed package to make
+                    // sure we don't change WebView provider twice.
+                    if (intent.getAction().equals(Intent.ACTION_PACKAGE_REMOVED)
+                            && intent.getExtras().getBoolean(Intent.EXTRA_REPLACING)) {
+                        return;
+                    }
+
                     for (String packageName : WebViewFactory.getWebViewPackageNames()) {
                         String webviewPackage = "package:" + packageName;
 
@@ -73,7 +82,8 @@
                 }
         };
         IntentFilter filter = new IntentFilter();
-        filter.addAction(Intent.ACTION_PACKAGE_REPLACED);
+        filter.addAction(Intent.ACTION_PACKAGE_ADDED);
+        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
         filter.addDataScheme("package");
         getContext().registerReceiver(mWebViewUpdatedReceiver, filter);
 
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index f54fd83..4e38f67 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -55,17 +55,6 @@
      * from mDisplayWindows; */
     private final WindowList mWindows = new WindowList();
 
-    // This protects the following display size properties, so that
-    // getDisplaySize() doesn't need to acquire the global lock.  This is
-    // needed because the window manager sometimes needs to use ActivityThread
-    // while it has its global state locked (for example to load animation
-    // resources), but the ActivityThread also needs get the current display
-    // size sometimes when it has its package lock held.
-    //
-    // These will only be modified with both mWindowMap and mDisplaySizeLock
-    // held (in that order) so the window manager doesn't need to acquire this
-    // lock when needing these values in its normal operation.
-    final Object mDisplaySizeLock = new Object();
     int mInitialDisplayWidth = 0;
     int mInitialDisplayHeight = 0;
     int mInitialDisplayDensity = 0;
@@ -202,18 +191,16 @@
     }
 
     void initializeDisplayBaseInfo() {
-        synchronized(mDisplaySizeLock) {
-            // Bootstrap the default logical display from the display manager.
-            final DisplayInfo newDisplayInfo =
-                    mService.mDisplayManagerInternal.getDisplayInfo(mDisplayId);
-            if (newDisplayInfo != null) {
-                mDisplayInfo.copyFrom(newDisplayInfo);
-            }
-            mBaseDisplayWidth = mInitialDisplayWidth = mDisplayInfo.logicalWidth;
-            mBaseDisplayHeight = mInitialDisplayHeight = mDisplayInfo.logicalHeight;
-            mBaseDisplayDensity = mInitialDisplayDensity = mDisplayInfo.logicalDensityDpi;
-            mBaseDisplayRect.set(0, 0, mBaseDisplayWidth, mBaseDisplayHeight);
+        // Bootstrap the default logical display from the display manager.
+        final DisplayInfo newDisplayInfo =
+                mService.mDisplayManagerInternal.getDisplayInfo(mDisplayId);
+        if (newDisplayInfo != null) {
+            mDisplayInfo.copyFrom(newDisplayInfo);
         }
+        mBaseDisplayWidth = mInitialDisplayWidth = mDisplayInfo.logicalWidth;
+        mBaseDisplayHeight = mInitialDisplayHeight = mDisplayInfo.logicalHeight;
+        mBaseDisplayDensity = mInitialDisplayDensity = mDisplayInfo.logicalDensityDpi;
+        mBaseDisplayRect.set(0, 0, mBaseDisplayWidth, mBaseDisplayHeight);
     }
 
     void getLogicalDisplayRect(Rect out) {
@@ -291,16 +278,18 @@
             final ArrayList<Task> tasks = mStacks.get(stackNdx).getTasks();
             for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) {
                 final Task task = tasks.get(taskNdx);
-                // We need to use the visible frame on the window for any touch-related tests.
-                // Can't use the task's bounds because the original task bounds might be adjusted
-                // to fit the content frame. For example, the presence of the IME adjusting the
+                final WindowState win = task.getTopVisibleAppMainWindow();
+                if (win == null) {
+                    continue;
+                }
+                // We need to use the task's dim bounds (which is derived from the visible
+                // bounds of its apps windows) for any touch-related tests. Can't use
+                // the task's original bounds because it might be adjusted to fit the
+                // content frame. For example, the presence of the IME adjusting the
                 // windows frames when the app window is the IME target.
-                final WindowState win = task.getTopAppMainWindow();
-                if (win != null) {
-                    win.getVisibleBounds(mTmpRect);
-                    if (mTmpRect.contains(x, y)) {
-                        return task.mTaskId;
-                    }
+                task.getDimBounds(mTmpRect);
+                if (mTmpRect.contains(x, y)) {
+                    return task.mTaskId;
                 }
             }
         }
@@ -308,10 +297,10 @@
     }
 
     /**
-     * Find the window whose outside touch area (for resizing) (x, y) falls within.
+     * Find the task whose outside touch area (for resizing) (x, y) falls within.
      * Returns null if the touch doesn't fall into a resizing area.
      */
-    WindowState findWindowForControlPoint(int x, int y) {
+    Task findTaskForControlPoint(int x, int y) {
         final int delta = mService.dipToPixel(RESIZE_HANDLE_WIDTH_IN_DP, mDisplayMetrics);
         for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) {
             TaskStack stack = mStacks.get(stackNdx);
@@ -325,24 +314,22 @@
                     return null;
                 }
 
-                // We need to use the visible frame on the window for any touch-related
-                // tests. Can't use the task's bounds because the original task bounds
-                // might be adjusted to fit the content frame. (One example is when the
-                // task is put to top-left quadrant, the actual visible frame would not
-                // start at (0,0) after it's adjusted for the status bar.)
-                final WindowState win = task.getTopAppMainWindow();
-                if (win != null) {
-                    win.getVisibleBounds(mTmpRect);
-                    mTmpRect.inset(-delta, -delta);
-                    if (mTmpRect.contains(x, y)) {
-                        mTmpRect.inset(delta, delta);
-                        if (!mTmpRect.contains(x, y)) {
-                            return win;
-                        }
-                        // User touched inside the task. No need to look further,
-                        // focus transfer will be handled in ACTION_UP.
-                        return null;
+                // We need to use the task's dim bounds (which is derived from the visible
+                // bounds of its apps windows) for any touch-related tests. Can't use
+                // the task's original bounds because it might be adjusted to fit the
+                // content frame. One example is when the task is put to top-left quadrant,
+                // the actual visible area would not start at (0,0) after it's adjusted
+                // for the status bar.
+                task.getDimBounds(mTmpRect);
+                mTmpRect.inset(-delta, -delta);
+                if (mTmpRect.contains(x, y)) {
+                    mTmpRect.inset(delta, delta);
+                    if (!mTmpRect.contains(x, y)) {
+                        return task;
                     }
+                    // User touched inside the task. No need to look further,
+                    // focus transfer will be handled in ACTION_UP.
+                    return null;
                 }
             }
         }
@@ -351,12 +338,18 @@
 
     void setTouchExcludeRegion(Task focusedTask) {
         mTouchExcludeRegion.set(mBaseDisplayRect);
-        WindowList windows = getWindowList();
         final int delta = mService.dipToPixel(RESIZE_HANDLE_WIDTH_IN_DP, mDisplayMetrics);
-        for (int i = windows.size() - 1; i >= 0; --i) {
-            final WindowState win = windows.get(i);
-            final Task task = win.getTask();
-            if (win.isVisibleLw() && task != null) {
+        boolean addBackFocusedTask = false;
+        for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) {
+            TaskStack stack = mStacks.get(stackNdx);
+            final ArrayList<Task> tasks = stack.getTasks();
+            for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) {
+                final Task task = tasks.get(taskNdx);
+                final WindowState win = task.getTopVisibleAppMainWindow();
+                if (win == null) {
+                    continue;
+                }
+
                 /**
                  * Exclusion region is the region that TapDetector doesn't care about.
                  * Here we want to remove all non-focused tasks from the exclusion region.
@@ -368,13 +361,17 @@
                  */
                 final boolean isFreeformed = task.inFreeformWorkspace();
                 if (task != focusedTask || isFreeformed) {
-                    mTmpRect.set(win.mVisibleFrame);
-                    mTmpRect.intersect(win.mVisibleInsets);
-                    /**
-                     * If the task is freeformed, enlarge the area to account for outside
-                     * touch area for resize.
-                     */
+                    task.getDimBounds(mTmpRect);
                     if (isFreeformed) {
+                        // If we're removing a freeform, focused app from the exclusion region,
+                        // we need to add back its touchable frame later. Remember the touchable
+                        // frame now.
+                        if (task == focusedTask) {
+                            addBackFocusedTask = true;
+                            mTmpRect2.set(mTmpRect);
+                        }
+                        // If the task is freeformed, enlarge the area to account for outside
+                        // touch area for resize.
                         mTmpRect.inset(-delta, -delta);
                         // Intersect with display content rect. If we have system decor (status bar/
                         // navigation bar), we want to exclude that from the tap detection.
@@ -385,17 +382,14 @@
                     }
                     mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE);
                 }
-                /**
-                 * If we removed the focused task above, add it back and only leave its
-                 * outside touch area in the exclusion. TapDectector is not interested in
-                 * any touch inside the focused task itself.
-                 */
-                if (task == focusedTask && isFreeformed) {
-                    mTmpRect.inset(delta, delta);
-                    mTouchExcludeRegion.op(mTmpRect, Region.Op.UNION);
-                }
             }
         }
+        // If we removed the focused task above, add it back and only leave its
+        // outside touch area in the exclusion. TapDectector is not interested in
+        // any touch inside the focused task itself.
+        if (addBackFocusedTask) {
+            mTouchExcludeRegion.op(mTmpRect2, Region.Op.UNION);
+        }
         if (mTapDetector != null) {
             mTapDetector.setTouchExcludeRegion(mTouchExcludeRegion);
         }
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 1b86488..46cd7cd 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -284,7 +284,12 @@
     boolean getMaxVisibleBounds(Rect out) {
         boolean foundTop = false;
         for (int i = mAppTokens.size() - 1; i >= 0; i--) {
-            final WindowState win = mAppTokens.get(i).findMainWindow();
+            final AppWindowToken token = mAppTokens.get(i);
+            // skip hidden (or about to hide) apps
+            if (token.mIsExiting || token.clientHidden || token.hiddenRequested) {
+                continue;
+            }
+            final WindowState win = token.findMainWindow();
             if (win == null) {
                 continue;
             }
@@ -413,14 +418,20 @@
         return mStack != null && mStack.mStackId == DOCKED_STACK_ID;
     }
 
-    WindowState getTopAppMainWindow() {
-        final int tokensCount = mAppTokens.size();
-        return tokensCount > 0 ? mAppTokens.get(tokensCount - 1).findMainWindow() : null;
+    WindowState getTopVisibleAppMainWindow() {
+        final AppWindowToken token = getTopVisibleAppToken();
+        return token != null ? token.findMainWindow() : null;
     }
 
-    AppWindowToken getTopAppWindowToken() {
-        final int tokensCount = mAppTokens.size();
-        return tokensCount > 0 ? mAppTokens.get(tokensCount - 1) : null;
+    AppWindowToken getTopVisibleAppToken() {
+        for (int i = mAppTokens.size() - 1; i >= 0; i--) {
+            final AppWindowToken token = mAppTokens.get(i);
+            // skip hidden (or about to hide) apps
+            if (!token.mIsExiting && !token.clientHidden && !token.hiddenRequested) {
+                return token;
+            }
+        }
+        return null;
     }
 
     @Override
diff --git a/services/core/java/com/android/server/wm/TaskPositioner.java b/services/core/java/com/android/server/wm/TaskPositioner.java
index dd47e7a..f5e4e3b 100644
--- a/services/core/java/com/android/server/wm/TaskPositioner.java
+++ b/services/core/java/com/android/server/wm/TaskPositioner.java
@@ -332,30 +332,34 @@
                 + ", {" + startX + ", " + startY + "}");
         }
         mCtrlType = CTRL_NONE;
+        mTask = win.getTask();
+        mStartDragX = startX;
+        mStartDragY = startY;
+
+        // Use the dim bounds, not the original task bounds. The cursor
+        // movement should be calculated relative to the visible bounds.
+        // Also, use the dim bounds of the task which accounts for
+        // multiple app windows. Don't use any bounds from win itself as it
+        // may not be the same size as the task.
+        mTask.getDimBounds(mTmpRect);
+
         if (resize) {
-            final Rect visibleFrame = win.mVisibleFrame;
-            if (startX < visibleFrame.left) {
+            if (startX < mTmpRect.left) {
                 mCtrlType |= CTRL_LEFT;
             }
-            if (startX > visibleFrame.right) {
+            if (startX > mTmpRect.right) {
                 mCtrlType |= CTRL_RIGHT;
             }
-            if (startY < visibleFrame.top) {
+            if (startY < mTmpRect.top) {
                 mCtrlType |= CTRL_TOP;
             }
-            if (startY > visibleFrame.bottom) {
+            if (startY > mTmpRect.bottom) {
                 mCtrlType |= CTRL_BOTTOM;
             }
             mResizing = true;
         }
 
-        mTask = win.getTask();
-        mStartDragX = startX;
-        mStartDragY = startY;
-
-        // Use the visible bounds, not the original task bounds. The cursor
-        // movement should be calculated relative to the visible bounds.
-        mWindowOriginalBounds.set(win.mVisibleFrame);
+        mWindowOriginalBounds.set(mTmpRect);
     }
 
     private void endDragLocked() {
diff --git a/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java b/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java
index 1fe359e..f5b83bb 100644
--- a/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java
+++ b/services/core/java/com/android/server/wm/TaskTapPointerEventListener.java
@@ -90,11 +90,11 @@
             case MotionEvent.ACTION_HOVER_MOVE: {
                 final int x = (int) motionEvent.getX();
                 final int y = (int) motionEvent.getY();
-                final WindowState window = mDisplayContent.findWindowForControlPoint(x, y);
-                if (window == null) {
+                final Task task = mDisplayContent.findTaskForControlPoint(x, y);
+                if (task == null) {
                     break;
                 }
-                window.getVisibleBounds(mTmpRect);
+                task.getDimBounds(mTmpRect);
                 if (!mTmpRect.isEmpty() && !mTmpRect.contains(x, y)) {
                     int iconShape = STYLE_DEFAULT;
                     if (x < mTmpRect.left) {
diff --git a/services/core/java/com/android/server/wm/WindowAnimator.java b/services/core/java/com/android/server/wm/WindowAnimator.java
index 38bd71d..a96bd2c 100644
--- a/services/core/java/com/android/server/wm/WindowAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowAnimator.java
@@ -67,7 +67,7 @@
     private final WindowSurfacePlacer mWindowPlacerLocked;
 
     /** Is any window animating? */
-    boolean mAnimating;
+    private boolean mAnimating;
 
     /** Is any app window animating? */
     boolean mAppWindowAnimating;
@@ -168,7 +168,8 @@
                     appAnimator.wasAnimating = appAnimator.animating;
                     if (appAnimator.stepAnimationLocked(mCurrentTime, displayId)) {
                         appAnimator.animating = true;
-                        mAnimating = mAppWindowAnimating = true;
+                        setAnimating(true);
+                        mAppWindowAnimating = true;
                     } else if (appAnimator.wasAnimating) {
                         // stopped animating, do one more pass through the layout
                         setAppLayoutChanges(appAnimator,
@@ -186,7 +187,8 @@
                 final AppWindowAnimator appAnimator = exitingAppTokens.get(i).mAppAnimator;
                 appAnimator.wasAnimating = appAnimator.animating;
                 if (appAnimator.stepAnimationLocked(mCurrentTime, displayId)) {
-                    mAnimating = mAppWindowAnimating = true;
+                    setAnimating(true);
+                    mAppWindowAnimating = true;
                 } else if (appAnimator.wasAnimating) {
                     // stopped animating, do one more pass through the layout
                     setAppLayoutChanges(appAnimator,
@@ -282,7 +284,7 @@
                 final boolean wasAnimating = winAnimator.mWasAnimating;
                 final boolean nowAnimating = winAnimator.stepAnimationLocked(mCurrentTime);
                 winAnimator.mWasAnimating = nowAnimating;
-                mAnimating |= nowAnimating;
+                orAnimating(nowAnimating);
 
                 if (DEBUG_WALLPAPER) {
                     Slog.v(TAG, win + ": wasAnimating=" + wasAnimating +
@@ -546,7 +548,7 @@
                         }
                     }
                 }
-                mAnimating = true;
+                setAnimating(true);
             }
 
             // If this window's app token is running a detached wallpaper
@@ -617,7 +619,7 @@
 
                             // We can now show all of the drawn windows!
                             if (!mService.mOpeningApps.contains(wtoken)) {
-                                mAnimating |= appAnimator.showAllWindowsLocked();
+                                orAnimating(appAnimator.showAllWindowsLocked());
                             }
                         }
                     }
@@ -636,7 +638,7 @@
         mCurrentTime = frameTimeNs / TimeUtils.NANOS_PER_MS;
         mBulkUpdateParams = SET_ORIENTATION_CHANGE_COMPLETE;
         boolean wasAnimating = mAnimating;
-        mAnimating = false;
+        setAnimating(false);
         mAppWindowAnimating = false;
         if (DEBUG_WINDOW_TRACE) {
             Slog.i(TAG, "!!! animate: entry time=" + mCurrentTime);
@@ -657,7 +659,7 @@
                         displayAnimator.mScreenRotationAnimation;
                 if (screenRotationAnimation != null && screenRotationAnimation.isAnimating()) {
                     if (screenRotationAnimation.stepAnimationLocked(mCurrentTime)) {
-                        mAnimating = true;
+                        setAnimating(true);
                     } else {
                         mBulkUpdateParams |= SET_UPDATE_ROTATION;
                         screenRotationAnimation.kill();
@@ -697,7 +699,7 @@
                     screenRotationAnimation.updateSurfacesInTransaction();
                 }
 
-                mAnimating |= mService.getDisplayContentLocked(displayId).animateDimLayers();
+                orAnimating(mService.getDisplayContentLocked(displayId).animateDimLayers());
 
                 //TODO (multidisplay): Magnification is supported only for the default display.
                 if (mService.mAccessibilityController != null
@@ -920,4 +922,16 @@
     private class DisplayContentsAnimator {
         ScreenRotationAnimation mScreenRotationAnimation = null;
     }
+
+    boolean isAnimating() {
+        return mAnimating;
+    }
+
+    void setAnimating(boolean animating) {
+        mAnimating = animating;
+    }
+
+    void orAnimating(boolean animating) {
+        mAnimating |= animating;
+    }
 }
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index f17698c..4293f0a 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -2737,6 +2737,10 @@
             if (win.mAppToken != null) {
                 win.mAppToken.updateReportedVisibilityLocked();
             }
+            if (winAnimator.mReportSurfaceResized) {
+                winAnimator.mReportSurfaceResized = false;
+                result |= WindowManagerGlobal.RELAYOUT_RES_SURFACE_RESIZED;
+            }
             outFrame.set(win.mCompatFrame);
             outOverscanInsets.set(win.mOverscanInsets);
             outContentInsets.set(win.mContentInsets);
@@ -6904,27 +6908,25 @@
         final int appWidth = mPolicy.getNonDecorDisplayWidth(dw, dh, mRotation);
         final int appHeight = mPolicy.getNonDecorDisplayHeight(dw, dh, mRotation);
         final DisplayInfo displayInfo = displayContent.getDisplayInfo();
-        synchronized(displayContent.mDisplaySizeLock) {
-            displayInfo.rotation = mRotation;
-            displayInfo.logicalWidth = dw;
-            displayInfo.logicalHeight = dh;
-            displayInfo.logicalDensityDpi = displayContent.mBaseDisplayDensity;
-            displayInfo.appWidth = appWidth;
-            displayInfo.appHeight = appHeight;
-            displayInfo.getLogicalMetrics(mRealDisplayMetrics,
-                    CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null);
-            displayInfo.getAppMetrics(mDisplayMetrics);
-            if (displayContent.mDisplayScalingDisabled) {
-                displayInfo.flags |= Display.FLAG_SCALING_DISABLED;
-            } else {
-                displayInfo.flags &= ~Display.FLAG_SCALING_DISABLED;
-            }
-
-            mDisplayManagerInternal.setDisplayInfoOverrideFromWindowManager(
-                    displayContent.getDisplayId(), displayInfo);
-
-            displayContent.mBaseDisplayRect.set(0, 0, dw, dh);
+        displayInfo.rotation = mRotation;
+        displayInfo.logicalWidth = dw;
+        displayInfo.logicalHeight = dh;
+        displayInfo.logicalDensityDpi = displayContent.mBaseDisplayDensity;
+        displayInfo.appWidth = appWidth;
+        displayInfo.appHeight = appHeight;
+        displayInfo.getLogicalMetrics(mRealDisplayMetrics,
+                CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null);
+        displayInfo.getAppMetrics(mDisplayMetrics);
+        if (displayContent.mDisplayScalingDisabled) {
+            displayInfo.flags |= Display.FLAG_SCALING_DISABLED;
+        } else {
+            displayInfo.flags &= ~Display.FLAG_SCALING_DISABLED;
         }
+
+        mDisplayManagerInternal.setDisplayInfoOverrideFromWindowManager(
+                displayContent.getDisplayId(), displayInfo);
+
+        displayContent.mBaseDisplayRect.set(0, 0, dw, dh);
         if (false) {
             Slog.i(TAG, "Set app display size: " + appWidth + " x " + appHeight);
         }
@@ -7069,15 +7071,16 @@
     }
 
     private void startResizingTask(DisplayContent displayContent, int startX, int startY) {
-        WindowState win = null;
+        Task task = null;
         synchronized (mWindowMap) {
-            win = displayContent.findWindowForControlPoint(startX, startY);
-            if (win == null || !startPositioningLocked(win, true /*resize*/, startX, startY)) {
+            task = displayContent.findTaskForControlPoint(startX, startY);
+            if (task == null || !startPositioningLocked(
+                    task.getTopVisibleAppMainWindow(), true /*resize*/, startX, startY)) {
                 return;
             }
         }
         try {
-            mActivityManager.setFocusedTask(win.getTask().mTaskId);
+            mActivityManager.setFocusedTask(task.mTaskId);
         } catch(RemoteException e) {}
     }
 
@@ -7682,7 +7685,7 @@
                     synchronized (mWindowMap) {
                         // Since we're holding both mWindowMap and mAnimator we don't need to
                         // hold mAnimator.mLayoutToAnim.
-                        if (mAnimator.mAnimating || mAnimationScheduled) {
+                        if (mAnimator.isAnimating() || mAnimationScheduled) {
                             // If we are animating, don't do the gc now but
                             // delay a bit so we don't interrupt the animation.
                             sendEmptyMessageDelayed(H.FORCE_GC, 2000);
@@ -8055,10 +8058,8 @@
         synchronized (mWindowMap) {
             final DisplayContent displayContent = getDisplayContentLocked(displayId);
             if (displayContent != null && displayContent.hasAccess(Binder.getCallingUid())) {
-                synchronized(displayContent.mDisplaySizeLock) {
-                    size.x = displayContent.mInitialDisplayWidth;
-                    size.y = displayContent.mInitialDisplayHeight;
-                }
+                size.x = displayContent.mInitialDisplayWidth;
+                size.y = displayContent.mInitialDisplayHeight;
             }
         }
     }
@@ -8068,10 +8069,8 @@
         synchronized (mWindowMap) {
             final DisplayContent displayContent = getDisplayContentLocked(displayId);
             if (displayContent != null && displayContent.hasAccess(Binder.getCallingUid())) {
-                synchronized(displayContent.mDisplaySizeLock) {
-                    size.x = displayContent.mBaseDisplayWidth;
-                    size.y = displayContent.mBaseDisplayHeight;
-                }
+                size.x = displayContent.mBaseDisplayWidth;
+                size.y = displayContent.mBaseDisplayHeight;
             }
         }
     }
@@ -8140,13 +8139,9 @@
         }
     }
 
-    private void setForcedDisplayScalingModeLocked(DisplayContent displayContent,
-            int mode) {
+    private void setForcedDisplayScalingModeLocked(DisplayContent displayContent, int mode) {
         Slog.i(TAG, "Using display scaling mode: " + (mode == 0 ? "auto" : "off"));
-
-        synchronized(displayContent.mDisplaySizeLock) {
-            displayContent.mDisplayScalingDisabled = (mode != 0);
-        }
+        displayContent.mDisplayScalingDisabled = (mode != 0);
         reconfigureDisplayLocked(displayContent);
     }
 
@@ -8164,13 +8159,11 @@
                 try {
                     width = Integer.parseInt(sizeStr.substring(0, pos));
                     height = Integer.parseInt(sizeStr.substring(pos+1));
-                    synchronized(displayContent.mDisplaySizeLock) {
-                        if (displayContent.mBaseDisplayWidth != width
-                                || displayContent.mBaseDisplayHeight != height) {
-                            Slog.i(TAG, "FORCED DISPLAY SIZE: " + width + "x" + height);
-                            displayContent.mBaseDisplayWidth = width;
-                            displayContent.mBaseDisplayHeight = height;
-                        }
+                    if (displayContent.mBaseDisplayWidth != width
+                            || displayContent.mBaseDisplayHeight != height) {
+                        Slog.i(TAG, "FORCED DISPLAY SIZE: " + width + "x" + height);
+                        displayContent.mBaseDisplayWidth = width;
+                        displayContent.mBaseDisplayHeight = height;
                     }
                 } catch (NumberFormatException ex) {
                 }
@@ -8187,11 +8180,9 @@
             int density;
             try {
                 density = Integer.parseInt(densityStr);
-                synchronized(displayContent.mDisplaySizeLock) {
-                    if (displayContent.mBaseDisplayDensity != density) {
-                        Slog.i(TAG, "FORCED DISPLAY DENSITY: " + density);
-                        displayContent.mBaseDisplayDensity = density;
-                    }
+                if (displayContent.mBaseDisplayDensity != density) {
+                    Slog.i(TAG, "FORCED DISPLAY DENSITY: " + density);
+                    displayContent.mBaseDisplayDensity = density;
                 }
             } catch (NumberFormatException ex) {
             }
@@ -8201,21 +8192,16 @@
         int mode = Settings.Global.getInt(mContext.getContentResolver(),
                 Settings.Global.DISPLAY_SCALING_FORCE, 0);
         if (mode != 0) {
-            synchronized(displayContent.mDisplaySizeLock) {
-                Slog.i(TAG, "FORCED DISPLAY SCALING DISABLED");
-                displayContent.mDisplayScalingDisabled = true;
-            }
+            Slog.i(TAG, "FORCED DISPLAY SCALING DISABLED");
+            displayContent.mDisplayScalingDisabled = true;
         }
     }
 
     // displayContent must not be null
     private void setForcedDisplaySizeLocked(DisplayContent displayContent, int width, int height) {
         Slog.i(TAG, "Using new display size: " + width + "x" + height);
-
-        synchronized(displayContent.mDisplaySizeLock) {
-            displayContent.mBaseDisplayWidth = width;
-            displayContent.mBaseDisplayHeight = height;
-        }
+        displayContent.mBaseDisplayWidth = width;
+        displayContent.mBaseDisplayHeight = height;
         reconfigureDisplayLocked(displayContent);
     }
 
@@ -8251,9 +8237,7 @@
         synchronized (mWindowMap) {
             final DisplayContent displayContent = getDisplayContentLocked(displayId);
             if (displayContent != null && displayContent.hasAccess(Binder.getCallingUid())) {
-                synchronized(displayContent.mDisplaySizeLock) {
-                    return displayContent.mInitialDisplayDensity;
-                }
+                return displayContent.mInitialDisplayDensity;
             }
         }
         return -1;
@@ -8264,9 +8248,7 @@
         synchronized (mWindowMap) {
             final DisplayContent displayContent = getDisplayContentLocked(displayId);
             if (displayContent != null && displayContent.hasAccess(Binder.getCallingUid())) {
-                synchronized(displayContent.mDisplaySizeLock) {
-                    return displayContent.mBaseDisplayDensity;
-                }
+                return displayContent.mBaseDisplayDensity;
             }
         }
         return -1;
@@ -8301,10 +8283,7 @@
     // displayContent must not be null
     private void setForcedDisplayDensityLocked(DisplayContent displayContent, int density) {
         Slog.i(TAG, "Using new display density: " + density);
-
-        synchronized(displayContent.mDisplaySizeLock) {
-            displayContent.mBaseDisplayDensity = density;
-        }
+        displayContent.mBaseDisplayDensity = density;
         reconfigureDisplayLocked(displayContent);
     }
 
@@ -8395,12 +8374,10 @@
     private void setOverscanLocked(DisplayContent displayContent,
             int left, int top, int right, int bottom) {
         final DisplayInfo displayInfo = displayContent.getDisplayInfo();
-        synchronized (displayContent.mDisplaySizeLock) {
-            displayInfo.overscanLeft = left;
-            displayInfo.overscanTop = top;
-            displayInfo.overscanRight = right;
-            displayInfo.overscanBottom = bottom;
-        }
+        displayInfo.overscanLeft = left;
+        displayInfo.overscanTop = top;
+        displayInfo.overscanRight = right;
+        displayInfo.overscanBottom = bottom;
 
         mDisplaySettings.setOverscanLocked(displayInfo.uniqueId, displayInfo.name, left, top,
                 right, bottom);
@@ -9987,14 +9964,11 @@
         DisplayInfo displayInfo = displayContent.getDisplayInfo();
         final Rect rect = new Rect();
         mDisplaySettings.getOverscanLocked(displayInfo.name, displayInfo.uniqueId, rect);
-        synchronized (displayContent.mDisplaySizeLock) {
-            displayInfo.overscanLeft = rect.left;
-            displayInfo.overscanTop = rect.top;
-            displayInfo.overscanRight = rect.right;
-            displayInfo.overscanBottom = rect.bottom;
-            mDisplayManagerInternal.setDisplayInfoOverrideFromWindowManager(
-                    displayId, displayInfo);
-        }
+        displayInfo.overscanLeft = rect.left;
+        displayInfo.overscanTop = rect.top;
+        displayInfo.overscanRight = rect.right;
+        displayInfo.overscanBottom = rect.bottom;
+        mDisplayManagerInternal.setDisplayInfoOverrideFromWindowManager(displayId, displayInfo);
         configureDisplayPolicyLocked(displayContent);
 
         // TODO: Create an input channel for each display with touch capability.
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 93b40c0..673c21f 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -729,8 +729,18 @@
             mVisibleFrame.set(mContentFrame);
             mStableFrame.set(mContentFrame);
         } else if (mAttrs.type == TYPE_DOCK_DIVIDER) {
-            mDisplayContent.getDockedDividerController().positionDockedStackedDivider(mFrame);
-            mContentFrame.set(mFrame);
+            if (isVisibleLw()) {
+                // We don't adjust the dock divider frame for reasons other than performance. The
+                // real reason is that if it gets adjusted before it is shown for the first time,
+                // it would get size (0, 0). This causes a problem when we finally show the dock
+                // divider and try to draw to it. We do set the surface size at that moment to
+                // the correct size, but it's too late for the Surface Flinger to make it
+                // available for view rendering and as a result the renderer receives size 1, 1.
+                // This way we just keep the divider at the original size and Surface Flinger
+                // will return the correct value to the renderer.
+                mDisplayContent.getDockedDividerController().positionDockedStackedDivider(mFrame);
+                mContentFrame.set(mFrame);
+            }
         } else {
             mContentFrame.set(Math.max(mContentFrame.left, mFrame.left),
                     Math.max(mContentFrame.top, mFrame.top),
@@ -1698,7 +1708,7 @@
 
         Task task = getTask();
         if (task == null || task.inHomeStack()
-                || task.getTopAppWindowToken() != mAppToken) {
+                || task.getTopVisibleAppToken() != mAppToken) {
             // Don't save surfaces for home stack apps. These usually resume and draw
             // first frame very fast. Saving surfaces are mostly a waste of memory.
             // Don't save if the window is not the topmost window.
diff --git a/services/core/java/com/android/server/wm/WindowStateAnimator.java b/services/core/java/com/android/server/wm/WindowStateAnimator.java
index a3bb320..f7805b1 100644
--- a/services/core/java/com/android/server/wm/WindowStateAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowStateAnimator.java
@@ -16,7 +16,9 @@
 
 package com.android.server.wm;
 
+import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
+import static android.view.WindowManager.LayoutParams.FLAG_SCALED;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
 import static com.android.server.wm.WindowManagerService.DEBUG_ANIM;
 import static com.android.server.wm.WindowManagerService.DEBUG_LAYERS;
@@ -24,12 +26,12 @@
 import static com.android.server.wm.WindowManagerService.DEBUG_STARTING_WINDOW;
 import static com.android.server.wm.WindowManagerService.DEBUG_SURFACE_TRACE;
 import static com.android.server.wm.WindowManagerService.DEBUG_VISIBILITY;
-import static com.android.server.wm.WindowManagerService.localLOGV;
 import static com.android.server.wm.WindowManagerService.SHOW_LIGHT_TRANSACTIONS;
 import static com.android.server.wm.WindowManagerService.SHOW_SURFACE_ALLOC;
 import static com.android.server.wm.WindowManagerService.SHOW_TRANSACTIONS;
 import static com.android.server.wm.WindowManagerService.TYPE_LAYER_MULTIPLIER;
-import static com.android.server.wm.WindowState.*;
+import static com.android.server.wm.WindowManagerService.localLOGV;
+import static com.android.server.wm.WindowState.DRAG_RESIZE_MODE_FREEFORM;
 import static com.android.server.wm.WindowSurfacePlacer.SET_ORIENTATION_CHANGE_COMPLETE;
 import static com.android.server.wm.WindowSurfacePlacer.SET_TURN_ON_SCREEN;
 
@@ -37,7 +39,6 @@
 import android.graphics.Matrix;
 import android.graphics.PixelFormat;
 import android.graphics.Point;
-import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.Region;
 import android.os.Debug;
@@ -47,12 +48,10 @@
 import android.view.DisplayInfo;
 import android.view.MagnificationSpec;
 import android.view.Surface.OutOfResourcesException;
-import android.view.Surface;
 import android.view.SurfaceControl;
-import android.view.SurfaceSession;
 import android.view.WindowManager;
-import android.view.WindowManagerPolicy;
 import android.view.WindowManager.LayoutParams;
+import android.view.WindowManagerPolicy;
 import android.view.animation.Animation;
 import android.view.animation.AnimationSet;
 import android.view.animation.AnimationUtils;
@@ -61,7 +60,6 @@
 import com.android.server.wm.WindowManagerService.H;
 
 import java.io.PrintWriter;
-import java.util.ArrayList;
 
 /**
  * Keep track of animations and surface operations for a single WindowState.
@@ -101,6 +99,11 @@
      * we must tell them application to resize (and thus redraw itself).
      */
     boolean mSurfaceResized;
+    /**
+     * Whether we should inform the client on next relayoutWindow that
+     * the surface has been resized since last time.
+     */
+    boolean mReportSurfaceResized;
     WindowSurfaceController mSurfaceController;
     private WindowSurfaceController mPendingDestroySurface;
 
@@ -183,6 +186,8 @@
 
     int mAttrType;
 
+    private final Rect mTmpSize = new Rect();
+
     WindowStateAnimator(final WindowState win) {
         final WindowManagerService service = win.mService;
 
@@ -442,7 +447,7 @@
         if (!isWindowAnimating()) {
             //TODO (multidisplay): Accessibility is supported only for the default display.
             if (mService.mAccessibilityController != null
-                    && mWin.getDisplayId() == Display.DEFAULT_DISPLAY) {
+                    && mWin.getDisplayId() == DEFAULT_DISPLAY) {
                 mService.mAccessibilityController.onSomeWindowResizedOrMovedLocked();
             }
         }
@@ -496,7 +501,7 @@
         }
         if (mDrawState == DRAW_PENDING) {
             if (DEBUG_SURFACE_TRACE || DEBUG_ANIM || SHOW_TRANSACTIONS || DEBUG_ORIENTATION)
-                Slog.v(TAG, "finishDrawingLocked: mDrawState=COMMIT_DRAW_PENDING " + this + " in "
+                Slog.v(TAG, "finishDrawingLocked: mDrawState=COMMIT_DRAW_PENDING " + mWin + " in "
                         + mSurfaceController);
             if (DEBUG_STARTING_WINDOW && startingWindow) {
                 Slog.v(TAG, "Draw state now committed in " + mWin);
@@ -528,7 +533,7 @@
                 mWin.mAttrs.type == TYPE_APPLICATION_STARTING) {
             result = performShowLocked();
         }
-        if (mDestroyPreservedSurfaceUponRedraw && result) {
+        if (mDestroyPreservedSurfaceUponRedraw) {
             mService.mDestroyPreservedSurface.add(mWin);
         }
         return result;
@@ -581,52 +586,16 @@
                 flags |= SurfaceControl.SECURE;
             }
 
-            float left = w.mFrame.left + w.mXOffset;
-            float top = w.mFrame.top + w.mYOffset;
-
-            int width;
-            int height;
-            if ((attrs.flags & LayoutParams.FLAG_SCALED) != 0) {
-                // for a scaled surface, we always want the requested
-                // size.
-                width = w.mRequestedWidth;
-                height = w.mRequestedHeight;
-            } else {
-                // When we're doing a drag-resizing, request a surface that's fullscreen size,
-                // so that we don't need to reallocate during the process. This also prevents
-                // buffer drops due to size mismatch.
-                final DisplayInfo displayInfo = w.getDisplayInfo();
-                if (displayInfo != null && w.isDragResizing()) {
-                    left = 0;
-                    top = 0;
-                    width = displayInfo.logicalWidth;
-                    height = displayInfo.logicalHeight;
-                } else {
-                    width = w.mCompatFrame.width();
-                    height = w.mCompatFrame.height();
-                }
-            }
-
-            // Something is wrong and SurfaceFlinger will not like this,
-            // try to revert to sane values
-            if (width <= 0) {
-                width = 1;
-            }
-            if (height <= 0) {
-                height = 1;
-            }
-
-            // Adjust for surface insets.
-            width += attrs.surfaceInsets.left + attrs.surfaceInsets.right;
-            height += attrs.surfaceInsets.top + attrs.surfaceInsets.bottom;
-            left -= attrs.surfaceInsets.left;
-            top -= attrs.surfaceInsets.top;
+            mTmpSize.set(w.mFrame.left + w.mXOffset, w.mFrame.top + w.mYOffset, 0, 0);
+            calculateSurfaceBounds(w, attrs);
+            final int width = mTmpSize.width();
+            final int height = mTmpSize.height();
 
             if (DEBUG_VISIBILITY) {
                 Slog.v(TAG, "Creating surface in session "
                         + mSession.mSurfaceSession + " window " + this
                         + " w=" + width + " h=" + height
-                        + " x=" + left + " y=" + top
+                        + " x=" + mTmpSize.left + " y=" + mTmpSize.top
                         + " format=" + attrs.format + " flags=" + flags);
             }
 
@@ -692,15 +661,15 @@
                 Slog.i(TAG, ">>> OPEN TRANSACTION createSurfaceLocked");
                 WindowManagerService.logSurface(w, "CREATE pos=("
                         + w.mFrame.left + "," + w.mFrame.top + ") ("
-                        + w.mCompatFrame.width() + "x" + w.mCompatFrame.height()
-                        + "), layer=" + mAnimLayer + " HIDE", null);
+                        + width + "x" + height + "), layer=" + mAnimLayer + " HIDE", null);
             }
 
             // Start a new transaction and apply position & offset.
             final int layerStack = w.getDisplayContent().getDisplay().getLayerStack();
             if (WindowManagerService.SHOW_TRANSACTIONS) WindowManagerService.logSurface(w,
-                    "POS " + left + ", " + top, null);
-            mSurfaceController.setPositionAndLayer(left, top, layerStack, mAnimLayer);
+                    "POS " + mTmpSize.left + ", " + mTmpSize.top, null);
+            mSurfaceController.setPositionAndLayer(mTmpSize.left, mTmpSize.top, layerStack,
+                    mAnimLayer);
             mLastHidden = true;
 
             if (WindowManagerService.localLOGV) Slog.v(
@@ -709,6 +678,57 @@
         return mSurfaceController;
     }
 
+    private void calculateSurfaceBounds(WindowState w, LayoutParams attrs) {
+        if ((attrs.flags & FLAG_SCALED) != 0) {
+            // For a scaled surface, we always want the requested size.
+            mTmpSize.right = mTmpSize.left + w.mRequestedWidth;
+            mTmpSize.bottom = mTmpSize.top + w.mRequestedHeight;
+        } else {
+            // When we're doing a drag-resizing, request a surface that's fullscreen size,
+            // so that we don't need to reallocate during the process. This also prevents
+            // buffer drops due to size mismatch.
+            if (w.isDragResizing()) {
+                if (w.getResizeMode() == DRAG_RESIZE_MODE_FREEFORM) {
+                    mTmpSize.left = 0;
+                    mTmpSize.top = 0;
+                }
+                final DisplayInfo displayInfo = w.getDisplayInfo();
+                mTmpSize.right = mTmpSize.left + displayInfo.logicalWidth;
+                mTmpSize.bottom = mTmpSize.top + displayInfo.logicalHeight;
+            } else {
+                mTmpSize.right = mTmpSize.left + w.mCompatFrame.width();
+                mTmpSize.bottom = mTmpSize.top + w.mCompatFrame.height();
+            }
+        }
+
+        // Something is wrong and SurfaceFlinger will not like this, try to revert to sane values.
+        if (mTmpSize.width() < 1) {
+            Slog.w(TAG, "Width of " + w + " is not positive " + mTmpSize.width());
+            mTmpSize.right = mTmpSize.left + 1;
+        }
+        if (mTmpSize.height() < 1) {
+            Slog.w(TAG, "Height of " + w + " is not positive " + mTmpSize.height());
+            mTmpSize.bottom = mTmpSize.top + 1;
+        }
+
+        final int displayId = w.getDisplayId();
+        float scale = 1.0f;
+        // Magnification is supported only for the default display.
+        if (mService.mAccessibilityController != null && displayId == DEFAULT_DISPLAY) {
+            final MagnificationSpec spec =
+                    mService.mAccessibilityController.getMagnificationSpecForWindowLocked(w);
+            if (spec != null && !spec.isNop()) {
+                scale = spec.scale;
+            }
+        }
+
+        // Adjust for surface insets.
+        mTmpSize.left -= scale * attrs.surfaceInsets.left;
+        mTmpSize.top -= scale * attrs.surfaceInsets.top;
+        mTmpSize.right += scale * (attrs.surfaceInsets.left + attrs.surfaceInsets.right);
+        mTmpSize.bottom += scale * (attrs.surfaceInsets.top + attrs.surfaceInsets.bottom);
+    }
+
     void destroySurfaceLocked() {
         final AppWindowToken wtoken = mWin.mAppToken;
         if (wtoken != null) {
@@ -891,7 +911,7 @@
             tmpMatrix.postTranslate(frame.left + mWin.mXOffset, frame.top + mWin.mYOffset);
 
             //TODO (multidisplay): Magnification is supported only for the default display.
-            if (mService.mAccessibilityController != null && displayId == Display.DEFAULT_DISPLAY) {
+            if (mService.mAccessibilityController != null && displayId == DEFAULT_DISPLAY) {
                 MagnificationSpec spec = mService.mAccessibilityController
                         .getMagnificationSpecForWindowLocked(mWin);
                 if (spec != null && !spec.isNop()) {
@@ -974,7 +994,7 @@
 
         MagnificationSpec spec = null;
         //TODO (multidisplay): Magnification is supported only for the default display.
-        if (mService.mAccessibilityController != null && displayId == Display.DEFAULT_DISPLAY) {
+        if (mService.mAccessibilityController != null && displayId == DEFAULT_DISPLAY) {
             spec = mService.mAccessibilityController.getMagnificationSpecForWindowLocked(mWin);
         }
         if (spec != null) {
@@ -1069,7 +1089,7 @@
         } else if (w.mDecorFrame.isEmpty()) {
             // Windows without policy decor aren't cropped.
             w.mSystemDecorRect.set(0, 0, w.mCompatFrame.width(), w.mCompatFrame.height());
-        } else if (w.mAttrs.type == LayoutParams.TYPE_WALLPAPER && mAnimator.mAnimating) {
+        } else if (w.mAttrs.type == LayoutParams.TYPE_WALLPAPER && mAnimator.isAnimating()) {
             // If we're animating, the wallpaper crop should only be updated at the end of the
             // animation.
             mTmpClipRect.set(w.mSystemDecorRect);
@@ -1109,12 +1129,8 @@
         // The clip rect was generated assuming (0,0) as the window origin,
         // so we need to translate to match the actual surface coordinates.
         clipRect.offset(attrs.surfaceInsets.left, attrs.surfaceInsets.top);
-        // We don't want to clip to stack bounds windows that are currently doing entrance
-        // animation for docked window, otherwise the animating window will be suddenly cut off.
 
-        if (!(mAnimator.mAnimating && w.inDockedWorkspace())) {
-            adjustCropToStackBounds(w, clipRect, isFreeformResizing);
-        }
+        adjustCropToStackBounds(w, clipRect, isFreeformResizing);
 
         w.transformFromScreenToSurfaceSpace(clipRect);
 
@@ -1127,100 +1143,57 @@
     private void adjustCropToStackBounds(WindowState w, Rect clipRect, boolean isFreeformResizing) {
         final AppWindowToken appToken = w.mAppToken;
         final Task task = w.getTask();
-        // We don't apply the the stack bounds to the window that is being replaced, because it was
-        // living in a different stack. If we suddenly crop it to the new stack bounds, it might
-        // get cut off. We don't want it to happen, so we let it ignore the stack bounds until it
-        // gets removed. The window that will replace it will abide them.
-        if (task != null && appToken.mCropWindowsToStack && !appToken.mWillReplaceWindow) {
-            TaskStack stack = task.mStack;
-            stack.getDimBounds(mTmpStackBounds);
-            // When we resize we use the big surface approach, which means we can't trust the
-            // window frame bounds anymore. Instead, the window will be placed at 0, 0, but to avoid
-            // hardcoding it, we use surface coordinates.
-            final int frameX = isFreeformResizing ? (int) mSurfaceController.getX() :
-                    w.mFrame.left + mWin.mXOffset - w.getAttrs().surfaceInsets.left;
-            final int frameY = isFreeformResizing ? (int) mSurfaceController.getY() :
-                    w.mFrame.top + mWin.mYOffset - w.getAttrs().surfaceInsets.top;
-            // We need to do some acrobatics with surface position, because their clip region is
-            // relative to the inside of the surface, but the stack bounds aren't.
-            clipRect.left = Math.max(0,
-                    Math.max(mTmpStackBounds.left, frameX + clipRect.left) - frameX);
-            clipRect.top = Math.max(0,
-                    Math.max(mTmpStackBounds.top, frameY + clipRect.top) - frameY);
-            clipRect.right = Math.max(0,
-                    Math.min(mTmpStackBounds.right, frameX + clipRect.right) - frameX);
-            clipRect.bottom = Math.max(0,
-                    Math.min(mTmpStackBounds.bottom, frameY + clipRect.bottom) - frameY);
+        if (task == null || !appToken.mCropWindowsToStack) {
+            return;
         }
+
+        // We don't apply the stack bounds crop if:
+        // 1. The window is currently animating docked mode, otherwise the animating window will be
+        // suddenly cut off.
+        // 2. The window that is being replaced during animation, because it was living in a
+        // different stack. If we suddenly crop it to the new stack bounds, it might get cut off.
+        // We don't want it to happen, so we let it ignore the stack bounds until it gets removed.
+        // The window that will replace it will abide them.
+        if (isAnimating() && (appToken.mWillReplaceWindow || w.inDockedWorkspace())) {
+            return;
+        }
+
+        final TaskStack stack = task.mStack;
+        stack.getDimBounds(mTmpStackBounds);
+        // When we resize we use the big surface approach, which means we can't trust the
+        // window frame bounds anymore. Instead, the window will be placed at 0, 0, but to avoid
+        // hardcoding it, we use surface coordinates.
+        final int frameX = isFreeformResizing ? (int) mSurfaceController.getX() :
+                w.mFrame.left + mWin.mXOffset - w.getAttrs().surfaceInsets.left;
+        final int frameY = isFreeformResizing ? (int) mSurfaceController.getY() :
+                w.mFrame.top + mWin.mYOffset - w.getAttrs().surfaceInsets.top;
+        // We need to do some acrobatics with surface position, because their clip region is
+        // relative to the inside of the surface, but the stack bounds aren't.
+        clipRect.left = Math.max(0,
+                Math.max(mTmpStackBounds.left, frameX + clipRect.left) - frameX);
+        clipRect.top = Math.max(0,
+                Math.max(mTmpStackBounds.top, frameY + clipRect.top) - frameY);
+        clipRect.right = Math.max(0,
+                Math.min(mTmpStackBounds.right, frameX + clipRect.right) - frameX);
+        clipRect.bottom = Math.max(0,
+                Math.min(mTmpStackBounds.bottom, frameY + clipRect.bottom) - frameY);
     }
 
     void setSurfaceBoundariesLocked(final boolean recoveringMemory) {
         final WindowState w = mWin;
 
-        float left = w.mShownPosition.x;
-        float top = w.mShownPosition.y;
+        mTmpSize.set(w.mShownPosition.x, w.mShownPosition.y, 0, 0);
+        calculateSurfaceBounds(w, w.getAttrs());
 
-        int width;
-        int height;
-        if ((w.mAttrs.flags & LayoutParams.FLAG_SCALED) != 0) {
-            // for a scaled surface, we always want the requested
-            // size.
-            width  = w.mRequestedWidth;
-            height = w.mRequestedHeight;
-        } else {
-            // When we're doing a drag-resizing, request a surface that's fullscreen size,
-            // so that we don't need to reallocate during the process. This also prevents
-            // buffer drops due to size mismatch.
-            final DisplayInfo displayInfo = w.getDisplayInfo();
-
-            // In freeform resize mode, put surface at 0/0.
-            if (w.isDragResizing() && w.getResizeMode() == DRAG_RESIZE_MODE_FREEFORM) {
-                left = 0;
-                top = 0;
-            }
-            if (displayInfo != null && w.isDragResizing()) {
-                width = displayInfo.logicalWidth;
-                height = displayInfo.logicalHeight;
-            } else {
-                width = w.mCompatFrame.width();
-                height = w.mCompatFrame.height();
-            }
-        }
-
-        // Something is wrong and SurfaceFlinger will not like this,
-        // try to revert to sane values
-        if (width < 1) {
-            width = 1;
-        }
-        if (height < 1) {
-            height = 1;
-        }
-
-        // Adjust for surface insets.
-        final LayoutParams attrs = w.getAttrs();
-        final int displayId = w.getDisplayId();
-        float scale = 1.0f;
-        // Magnification is supported only for the default display.
-        if (mService.mAccessibilityController != null && displayId == Display.DEFAULT_DISPLAY) {
-            MagnificationSpec spec =
-                    mService.mAccessibilityController.getMagnificationSpecForWindowLocked(w);
-            if (spec != null && !spec.isNop()) {
-                scale = spec.scale;
-            }
-        }
-
-        width += scale * (attrs.surfaceInsets.left + attrs.surfaceInsets.right);
-        height += scale * (attrs.surfaceInsets.top + attrs.surfaceInsets.bottom);
-        left -= scale * attrs.surfaceInsets.left;
-        top -= scale * attrs.surfaceInsets.top;
-
-        mSurfaceController.setPositionInTransaction(left, top, recoveringMemory);
-        mSurfaceResized = mSurfaceController.setSizeInTransaction(width, height,
+        mSurfaceController.setPositionInTransaction(mTmpSize.left, mTmpSize.top, recoveringMemory);
+        mSurfaceResized = mSurfaceController.setSizeInTransaction(
+                mTmpSize.width(), mTmpSize.height(),
                 mDsDx * w.mHScale, mDtDx * w.mVScale,
                 mDsDy * w.mHScale, mDtDy * w.mVScale,
                 recoveringMemory);
 
         if (mSurfaceResized) {
+            mReportSurfaceResized = true;
             mAnimator.setPendingLayoutChanges(w.getDisplayId(),
                     WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER);
             w.applyDimLayerIfNeeded();
@@ -1449,7 +1422,7 @@
             // Force the show in the next prepareSurfaceLocked() call.
             mLastAlpha = -1;
             if (DEBUG_SURFACE_TRACE || DEBUG_ANIM)
-                Slog.v(TAG, "performShowLocked: mDrawState=HAS_DRAWN in " + this);
+                Slog.v(TAG, "performShowLocked: mDrawState=HAS_DRAWN in " + mWin);
             mDrawState = HAS_DRAWN;
             mService.scheduleAnimationLocked();
 
@@ -1532,7 +1505,7 @@
         applyAnimationLocked(transit, true);
         //TODO (multidisplay): Magnification is supported only for the default display.
         if (mService.mAccessibilityController != null
-                && mWin.getDisplayId() == Display.DEFAULT_DISPLAY) {
+                && mWin.getDisplayId() == DEFAULT_DISPLAY) {
             mService.mAccessibilityController.onWindowTransitionLocked(mWin, transit);
         }
     }
diff --git a/services/core/java/com/android/server/wm/WindowSurfacePlacer.java b/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
index 3b57634..ae96658 100644
--- a/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
+++ b/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
@@ -542,11 +542,8 @@
 
         mService.scheduleAnimationLocked();
 
-        if (DEBUG_WINDOW_TRACE) {
-            Slog.e(TAG,
-                    "performSurfacePlacementInner exit: animating="
-                            + mService.mAnimator.mAnimating);
-        }
+        if (DEBUG_WINDOW_TRACE) Slog.e(TAG,
+                "performSurfacePlacementInner exit: animating=" + mService.mAnimator.isAnimating());
     }
 
     private void applySurfaceChangesTransaction(boolean recoveringMemory, int numDisplays,
@@ -1184,7 +1181,7 @@
                     ">>> OPEN TRANSACTION handleAppTransitionReadyLocked()");
             SurfaceControl.openTransaction();
             try {
-                mService.mAnimator.mAnimating |= appAnimator.showAllWindowsLocked();
+                mService.mAnimator.orAnimating(appAnimator.showAllWindowsLocked());
             } finally {
                 SurfaceControl.closeTransaction();
                 if (SHOW_LIGHT_TRANSACTIONS) Slog.i(TAG,
@@ -1467,7 +1464,7 @@
                     appAnimator.mAllAppWinAnimators.add(wtoken.allAppWindows.get(j).mWinAnimator);
                 }
                 mService.mAnimator.mAppWindowAnimating |= appAnimator.isAnimating();
-                mService.mAnimator.mAnimating |= appAnimator.showAllWindowsLocked();
+                mService.mAnimator.orAnimating(appAnimator.showAllWindowsLocked());
             }
         }
     }
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index eee7d92..c611503 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -156,11 +156,6 @@
 
 /**
  * Implementation of the device policy APIs.
- *
- * Locking policies:
- * - {@link DevicePolicyManagerService} must not call into {@link IActivityManager} within {@code
- * this} lock to avoid lock inversion.
- * - Methods that call into {@link IActivityManager} must have the "AM" suffix.
  */
 public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
 
@@ -1110,7 +1105,7 @@
                     .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE));
         }
 
-        IActivityManager getIActivityManagerInner() {
+        IActivityManager getIActivityManager() {
             return ActivityManagerNative.getDefault();
         }
 
@@ -1241,16 +1236,6 @@
     }
 
     /**
-     * Caller must not hold {@code this} lock.  See also the class javadoc.
-     */
-    final IActivityManager getIActivityManager() {
-        if (Thread.holdsLock(this)) {
-            Slog.wtfStack(LOG_TAG, "Call to ActivityManager detected within DPMS lock");
-        }
-        return mInjector.getIActivityManagerInner();
-    }
-
-    /**
      * Instantiates the service.
      */
     public DevicePolicyManagerService(Context context) {
@@ -1364,6 +1349,8 @@
 
             // TODO PO may not have a class name either due to b/17652534.  Address that too.
 
+            updateDeviceOwnerLocked();
+
             // TODO Notify UM to update restrictions (?)
         }
     }
@@ -1625,25 +1612,17 @@
     @VisibleForTesting
     boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy,
             int userId) {
-        boolean ownsDevice = isDeviceOwner(admin.info.getComponent());
-        boolean ownsProfile = (getProfileOwner(userId) != null
-                && getProfileOwner(userId).getPackageName()
-                    .equals(admin.info.getPackageName()));
+        final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId);
+        final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId);
 
         if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) {
-            if ((userId == UserHandle.USER_SYSTEM && ownsDevice) || (ownsDevice && ownsProfile)) {
-                return true;
-            }
+            return ownsDevice;
         } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) {
-            if ((userId == UserHandle.USER_SYSTEM && ownsDevice) || ownsProfile) {
-                return true;
-            }
+            // DO always has the PO power.
+            return ownsDevice || ownsProfile;
         } else {
-            if (admin.info.usesPolicy(reqPolicy)) {
-                return true;
-            }
+            return admin.info.usesPolicy(reqPolicy);
         }
-        return false;
     }
 
     void sendAdminCommandLocked(ActiveAdmin admin, String action) {
@@ -2050,23 +2029,36 @@
 
         validatePasswordOwnerLocked(policy);
         updateMaximumTimeToLockLocked(policy);
-        updateLockTaskPackages(policy.mLockTaskPackages, userHandle);
+        updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle);
         if (policy.mStatusBarDisabled) {
             setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle);
         }
     }
 
-    private void updateLockTaskPackages(List<String> packages, final int userId) {
-        final String[] copy = packages.toArray(new String[packages.size()]);
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                try {
-                    getIActivityManager().updateLockTaskPackages(userId, copy);
-                } catch (RemoteException willNotHappen) {
-                }
+    private void updateLockTaskPackagesLocked(List<String> packages, int userId) {
+        long ident = mInjector.binderClearCallingIdentity();
+        try {
+            mInjector.getIActivityManager()
+                    .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()]));
+        } catch (RemoteException e) {
+            // Not gonna happen.
+        } finally {
+            mInjector.binderRestoreCallingIdentity(ident);
+        }
+    }
+
+    private void updateDeviceOwnerLocked() {
+        long ident = mInjector.binderClearCallingIdentity();
+        try {
+            if (getDeviceOwner() != null) {
+                mInjector.getIActivityManager()
+                        .updateDeviceOwner(getDeviceOwner().getPackageName());
             }
-        });
+        } catch (RemoteException e) {
+            // Not gonna happen.
+        } finally {
+            mInjector.binderRestoreCallingIdentity(ident);
+        }
     }
 
     static void validateQualityConstant(int quality) {
@@ -2137,21 +2129,14 @@
     }
 
     private void ensureDeviceOwnerUserStarted() {
-        if (!mOwners.hasDeviceOwner()) {
-            return;
-        }
-        final int userId = mOwners.getDeviceOwnerUserId();
-        if (userId == UserHandle.USER_SYSTEM) {
-            return;
-        }
-        if (VERBOSE_LOG) {
-            Log.v(LOG_TAG, "Starting non-system DO user: " + userId);
-        }
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
+        if (mOwners.hasDeviceOwner()) {
+            final int userId = mOwners.getDeviceOwnerUserId();
+            if (VERBOSE_LOG) {
+                Log.v(LOG_TAG, "Starting non-system DO user: " + userId);
+            }
+            if (userId != UserHandle.USER_SYSTEM) {
                 try {
-                    getIActivityManager().startUserInBackground(userId);
+                    mInjector.getIActivityManager().startUserInBackground(userId);
 
                     // STOPSHIP Prevent the DO user from being killed.
 
@@ -2159,7 +2144,7 @@
                     Slog.w(LOG_TAG, "Exception starting user", e);
                 }
             }
-        });
+        }
     }
 
     private void cleanUpOldUsers() {
@@ -2425,19 +2410,15 @@
         }
         enforceCrossUserPermission(userHandle);
         synchronized (this) {
-            return packageHasActiveAdminsLocked(packageName, userHandle);
-        }
-    }
-
-    boolean packageHasActiveAdminsLocked(String packageName, int userHandle) {
-        DevicePolicyData policy = getUserData(userHandle);
-        final int N = policy.mAdminList.size();
-        for (int i = 0; i < N; i++) {
-            if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) {
-                return true;
+            DevicePolicyData policy = getUserData(userHandle);
+            final int N = policy.mAdminList.size();
+            for (int i=0; i<N; i++) {
+                if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) {
+                    return true;
+                }
             }
+            return false;
         }
-        return false;
     }
 
     @Override
@@ -2452,8 +2433,9 @@
                 return;
             }
             if (admin.getUid() != mInjector.binderGetCallingUid()) {
-                // Active device owners must remain active admins.
-                if (isDeviceOwner(adminReceiver)) {
+                // Active device/profile owners must remain active admins.
+                if (isDeviceOwner(adminReceiver, userHandle)
+                        || isProfileOwner(adminReceiver, userHandle)) {
                     return;
                 }
                 mContext.enforceCallingOrSelfPermission(
@@ -3198,12 +3180,21 @@
     }
 
     @Override
-    public boolean resetPassword(String passwordOrNull, int flags) {
+    public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException {
         if (!mHasFeature) {
             return false;
         }
         final int userHandle = UserHandle.getCallingUserId();
-        enforceNotManagedProfile(userHandle, "reset the password");
+
+        long ident = mInjector.binderClearCallingIdentity();
+        try {
+            if (mUserManager.getCredentialOwnerProfile(userHandle) != userHandle) {
+                throw new SecurityException("You can not change password for this profile because"
+                    + " it shares the password with the owner profile");
+            }
+        } finally {
+            mInjector.binderRestoreCallingIdentity(ident);
+        }
 
         String password = passwordOrNull != null ? passwordOrNull : "";
 
@@ -3211,8 +3202,35 @@
         synchronized (this) {
             // This api can only be called by an active device admin,
             // so try to retrieve it to check that the caller is one.
-            getActiveAdminForCallerLocked(null,
+            final ActiveAdmin admin = getActiveAdminForCallerLocked(null,
                     DeviceAdminInfo.USES_POLICY_RESET_PASSWORD);
+            final ComponentName adminComponent = admin.info.getComponent();
+
+            // As of N, only profile owners and device owners can reset the password.
+            if (!(isProfileOwner(adminComponent, userHandle)
+                    || isDeviceOwner(adminComponent, userHandle))) {
+                final boolean preN = getTargetSdk(admin.info.getPackageName(), userHandle)
+                        < android.os.Build.VERSION_CODES.N;
+                // As of N, password resetting to empty/null is not allowed anymore.
+                // TODO Should we allow DO/PO to set an empty password?
+                if (TextUtils.isEmpty(password)) {
+                    if (!preN) {
+                        throw new SecurityException("Cannot call with null password");
+                    } else {
+                        Slog.e(LOG_TAG, "Cannot call with null password");
+                        return false;
+                    }
+                }
+                // As of N, password cannot be changed by the admin if it is already set.
+                if (isLockScreenSecureUnchecked(userHandle)) {
+                    if (!preN) {
+                        throw new SecurityException("Admin cannot change current password");
+                    } else {
+                        Slog.e(LOG_TAG, "Admin cannot change current password");
+                        return false;
+                    }
+                }
+            }
             quality = getPasswordQuality(null, userHandle);
             if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
                 int realQuality = LockPatternUtils.computePasswordQuality(password);
@@ -3314,9 +3332,9 @@
 
         // Don't do this with the lock held, because it is going to call
         // back in to the service.
-        long ident = mInjector.binderClearCallingIdentity();
+        ident = mInjector.binderClearCallingIdentity();
         try {
-            LockPatternUtils utils = new LockPatternUtils(mContext);
+            LockPatternUtils utils = mInjector.newLockPatternUtils();
             if (!TextUtils.isEmpty(password)) {
                 utils.saveLockPassword(password, null, quality, userHandle);
             } else {
@@ -3341,6 +3359,15 @@
         return true;
     }
 
+    private boolean isLockScreenSecureUnchecked(int userId) {
+        long ident = mInjector.binderClearCallingIdentity();
+        try {
+            return mInjector.newLockPatternUtils().isSecure(userId);
+        } finally {
+            mInjector.binderRestoreCallingIdentity(ident);
+        }
+    }
+
     private void setDoNotAskCredentialsOnBoot() {
         synchronized (this) {
             DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM);
@@ -3696,10 +3723,11 @@
     }
 
     @Override
-    public void wipeData(int flags, final int userHandle) {
+    public void wipeData(int flags) {
         if (!mHasFeature) {
             return;
         }
+        final int userHandle = mInjector.userHandleGetCallingUserId();
         enforceCrossUserPermission(userHandle);
         synchronized (this) {
             // This API can only be called by an active device admin,
@@ -3712,8 +3740,7 @@
             long ident = mInjector.binderClearCallingIdentity();
             try {
                 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) {
-                    if (userHandle != UserHandle.USER_SYSTEM
-                            || !isDeviceOwner(admin.info.getComponent())) {
+                    if (!isDeviceOwner(admin.info.getComponent(), userHandle)) {
                         throw new SecurityException(
                                "Only device owner admins can set WIPE_RESET_PROTECTION_DATA");
                     }
@@ -3740,7 +3767,7 @@
                 @Override
                 public void run() {
                     try {
-                        IActivityManager am = getIActivityManager();
+                        IActivityManager am = mInjector.getIActivityManager();
                         if (am.getCurrentUser().id == userHandle) {
                             am.switchUser(UserHandle.USER_SYSTEM);
                         }
@@ -4336,7 +4363,7 @@
             return;
         }
         Preconditions.checkNotNull(who, "ComponentName is null");
-        final int userHandle = UserHandle.getCallingUserId();
+        final int userHandle = mInjector.userHandleGetCallingUserId();
         synchronized (this) {
             ActiveAdmin ap = getActiveAdminForCallerLocked(who,
                     DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA);
@@ -4348,7 +4375,7 @@
         // Tell the user manager that the restrictions have changed.
         synchronized (mUserManagerInternal.getUserRestrictionsLock()) {
             synchronized (this) {
-                if (isDeviceOwner(who)) {
+                if (isDeviceOwner(who, userHandle)) {
                     mUserManagerInternal.updateEffectiveUserRestrictionsForAllUsersLR();
                 } else {
                     mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle);
@@ -4496,6 +4523,7 @@
 
             mOwners.setDeviceOwner(admin, ownerName, userId);
             mOwners.writeDeviceOwner();
+            updateDeviceOwnerLocked();
             Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED);
 
             ident = mInjector.binderClearCallingIdentity();
@@ -4509,24 +4537,17 @@
         }
     }
 
-    public boolean isDeviceOwner(ComponentName who) {
-        if (!mHasFeature) {
-            return false;
-        }
+    public boolean isDeviceOwner(ComponentName who, int userId) {
         synchronized (this) {
-            return mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerComponent().equals(who);
+            return mOwners.hasDeviceOwner()
+                    && mOwners.getDeviceOwnerUserId() == userId
+                    && mOwners.getDeviceOwnerComponent().equals(who);
         }
     }
 
-    @Override
-    public boolean isDeviceOwnerPackage(String packageName) {
-        if (!mHasFeature) {
-            return false;
-        }
-        synchronized (this) {
-            return mOwners.hasDeviceOwner()
-                    && mOwners.getDeviceOwnerComponent().getPackageName().equals(packageName);
-        }
+    public boolean isProfileOwner(ComponentName who, int userId) {
+        final ComponentName profileOwner = getProfileOwner(userId);
+        return who != null && who.equals(profileOwner);
     }
 
     @Override
@@ -4597,6 +4618,7 @@
 
             mOwners.clearDeviceOwner();
             mOwners.writeDeviceOwner();
+            updateDeviceOwnerLocked();
             // Reactivate backup service.
             long ident = mInjector.binderClearCallingIdentity();
             try {
@@ -4645,6 +4667,30 @@
         }
     }
 
+    @Override
+    public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) {
+        Preconditions.checkNotNull(who, "ComponentName is null");
+        if (!mHasFeature) {
+            return false;
+        }
+
+        synchronized (this) {
+            getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
+            long token = mInjector.binderClearCallingIdentity();
+            try {
+                new LockPatternUtils(mContext).setDeviceOwnerInfo(info);
+            } finally {
+                mInjector.binderRestoreCallingIdentity(token);
+            }
+            return true;
+        }
+    }
+
+    @Override
+    public String getDeviceOwnerLockScreenInfo() {
+        return new LockPatternUtils(mContext).getDeviceOwnerInfo();
+    }
+
     private void clearUserPoliciesLocked(UserHandle userHandle) {
         int userId = userHandle.getIdentifier();
         // Reset some of the user-specific policies
@@ -5357,14 +5403,14 @@
         }
     }
 
-    private boolean checkCallerIsCurrentUserOrProfileAM() {
+    private boolean checkCallerIsCurrentUserOrProfile() {
         int callingUserId = UserHandle.getCallingUserId();
         long token = mInjector.binderClearCallingIdentity();
         try {
             UserInfo currentUser;
             UserInfo callingUser = mUserManager.getUserInfo(callingUserId);
             try {
-                currentUser = getIActivityManager().getCurrentUser();
+                currentUser = mInjector.getIActivityManager().getCurrentUser();
             } catch (RemoteException e) {
                 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e);
                 return false;
@@ -5395,7 +5441,7 @@
 
         // TODO When InputMethodManager supports per user calls remove
         //      this restriction.
-        if (!checkCallerIsCurrentUserOrProfileAM()) {
+        if (!checkCallerIsCurrentUserOrProfile()) {
             return false;
         }
 
@@ -5447,7 +5493,7 @@
     public List getPermittedInputMethodsForCurrentUser() {
         UserInfo currentUser;
         try {
-            currentUser = getIActivityManager().getCurrentUser();
+            currentUser = mInjector.getIActivityManager().getCurrentUser();
         } catch (RemoteException e) {
             Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e);
             // Activity managed is dead, just allow all IMEs
@@ -5542,7 +5588,7 @@
                 }
 
                 // Start user in background.
-                getIActivityManager().startUserInBackground(userHandle);
+                mInjector.getIActivityManager().startUserInBackground(userHandle);
             } catch (RemoteException e) {
                 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e);
             }
@@ -5575,20 +5621,20 @@
         Preconditions.checkNotNull(who, "ComponentName is null");
         synchronized (this) {
             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
-        }
 
-        long id = mInjector.binderClearCallingIdentity();
-        try {
-            int userId = UserHandle.USER_SYSTEM;
-            if (userHandle != null) {
-                userId = userHandle.getIdentifier();
+            long id = mInjector.binderClearCallingIdentity();
+            try {
+                int userId = UserHandle.USER_SYSTEM;
+                if (userHandle != null) {
+                    userId = userHandle.getIdentifier();
+                }
+                return mInjector.getIActivityManager().switchUser(userId);
+            } catch (RemoteException e) {
+                Log.e(LOG_TAG, "Couldn't switch user", e);
+                return false;
+            } finally {
+                mInjector.binderRestoreCallingIdentity(id);
             }
-            return getIActivityManager().switchUser(userId);
-        } catch (RemoteException e) {
-            Log.e(LOG_TAG, "Couldn't switch user", e);
-            return false;
-        } finally {
-            mInjector.binderRestoreCallingIdentity(id);
         }
     }
 
@@ -5622,9 +5668,8 @@
                 ActiveAdmin activeAdmin =
                         getActiveAdminForCallerLocked(who,
                                 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
-                final boolean isDeviceOwner = isDeviceOwner(who);
-                if (!isDeviceOwner && userHandle != UserHandle.USER_SYSTEM
-                        && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) {
+                final boolean isDeviceOwner = isDeviceOwner(who, userHandle);
+                if (!isDeviceOwner && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) {
                     throw new SecurityException(
                             "Profile owners cannot set user restriction " + key);
                 }
@@ -6060,7 +6105,7 @@
 
         // Store the settings persistently.
         saveSettingsLocked(userHandle);
-        updateLockTaskPackages(packages, userHandle);
+        updateLockTaskPackagesLocked(packages, userHandle);
     }
 
     /**
@@ -6117,9 +6162,8 @@
             Bundle adminExtras = new Bundle();
             adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg);
             for (ActiveAdmin admin : policy.mAdminList) {
-                boolean ownsDevice = isDeviceOwner(admin.info.getComponent());
-                boolean ownsProfile = (getProfileOwner(userHandle) != null
-                        && getProfileOwner(userHandle).equals(admin.info.getPackageName()));
+                final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle);
+                final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle);
                 if (ownsDevice || ownsProfile) {
                     if (isEnabled) {
                         sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING,
@@ -6171,13 +6215,12 @@
     @Override
     public void setSecureSetting(ComponentName who, String setting, String value) {
         Preconditions.checkNotNull(who, "ComponentName is null");
-        int callingUserId = UserHandle.getCallingUserId();
-        final ContentResolver contentResolver = mContext.getContentResolver();
+        int callingUserId = mInjector.userHandleGetCallingUserId();
 
         synchronized (this) {
             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
 
-            if (isDeviceOwner(who)) {
+            if (isDeviceOwner(who, mInjector.userHandleGetCallingUserId())) {
                 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) {
                     throw new SecurityException(String.format(
                             "Permission denial: Device owners cannot update %1$s", setting));
@@ -6428,16 +6471,6 @@
             }
         }
 
-        @Override
-        public boolean isDeviceAdminPackage(int userId, String packageName) {
-            if (packageName == null) {
-                return false;
-            }
-            synchronized (DevicePolicyManagerService.this) {
-                return packageHasActiveAdminsLocked(packageName, userId);
-            }
-        }
-
         private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) {
             final List<OnCrossProfileWidgetProvidersChangeListener> listeners;
             synchronized (DevicePolicyManagerService.this) {
@@ -6499,13 +6532,26 @@
      * @param callerUid UID of the caller.
      * @return true if the caller is the device owner app
      */
-    private boolean isCallerDeviceOwner(int callerUid) {
-        String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid);
-        for (String pkg : pkgs) {
-            if (isDeviceOwnerPackage(pkg)) {
-                return true;
+    @VisibleForTesting
+    boolean isCallerDeviceOwner(int callerUid) {
+        synchronized (this) {
+            if (!mOwners.hasDeviceOwner()) {
+                return false;
+            }
+            if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) {
+                return false;
+            }
+            final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent()
+                    .getPackageName();
+            final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid);
+
+            for (String pkg : pkgs) {
+                if (deviceOwnerPackageName.equals(pkg)) {
+                    return true;
+                }
             }
         }
+
         return false;
     }
 
@@ -6585,10 +6631,8 @@
             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
             long ident = mInjector.binderClearCallingIdentity();
             try {
-                final ApplicationInfo ai = mIPackageManager
-                        .getApplicationInfo(packageName, 0, user.getIdentifier());
-                final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion;
-                if (targetSdkVersion < android.os.Build.VERSION_CODES.M) {
+                if (getTargetSdk(packageName, user.getIdentifier())
+                        < android.os.Build.VERSION_CODES.M) {
                     return false;
                 }
                 final PackageManager packageManager = mContext.getPackageManager();
@@ -6684,23 +6728,48 @@
             }
             return true;
         } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) {
-            if (getProfileOwner(callingUserId) != null) {
-                return false;
-            }
-            if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) {
-                return false;
-            }
-            if (callingUserId != UserHandle.USER_SYSTEM) {
-                // Device owner provisioning can only be initiated from system user.
-                return false;
-            }
-            return true;
+            return isDeviceOwnerProvisioningAllowed(callingUserId);
         } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) {
+            if (!UserManager.isSplitSystemUser()) {
+                // ACTION_PROVISION_MANAGED_USER only supported on split-user systems.
+                return false;
+            }
             if (hasUserSetupCompleted(callingUserId)) {
                 return false;
             }
             return true;
+        } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) {
+            if (!UserManager.isSplitSystemUser()) {
+                // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems.
+                return false;
+            }
+            return isDeviceOwnerProvisioningAllowed(callingUserId);
         }
         throw new IllegalArgumentException("Unknown provisioning action " + action);
     }
+
+    private boolean isDeviceOwnerProvisioningAllowed(int callingUserId) {
+        if (getProfileOwner(callingUserId) != null) {
+            return false;
+        }
+        if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) {
+            return false;
+        }
+        if (callingUserId != UserHandle.USER_SYSTEM) {
+            // Device owner provisioning can only be initiated from system user.
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Returns the target sdk version number that the given packageName was built for
+     * in the given user.
+     */
+    private int getTargetSdk(String packageName, int userId) throws RemoteException {
+        final ApplicationInfo ai = mIPackageManager
+                .getApplicationInfo(packageName, 0, userId);
+        final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion;
+        return targetSdkVersion;
+    }
 }
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java
index 6419338..2c01b8a 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java
@@ -128,7 +128,7 @@
         }
 
         @Override
-        IActivityManager getIActivityManagerInner() {
+        IActivityManager getIActivityManager() {
             return context.iactivityManager;
         }
 
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
index ca3d950..36980e3 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
@@ -476,6 +476,10 @@
         // Fire!
         assertTrue(dpm.setDeviceOwner(admin1, "owner-name"));
 
+        // Verify internal calls.
+        verify(mContext.iactivityManager, times(1)).updateDeviceOwner(
+                eq(admin1.getPackageName()));
+
         // TODO We should check if the caller has called clearCallerIdentity().
         verify(mContext.ibackupManager, times(1)).setBackupServiceActive(
                 eq(UserHandle.USER_SYSTEM), eq(false));
@@ -542,6 +546,10 @@
         dpm.setActiveAdmin(admin1, /* replace =*/ false);
         assertTrue(dpm.setDeviceOwner(admin1, "owner-name"));
 
+        // Verify internal calls.
+        verify(mContext.iactivityManager, times(1)).updateDeviceOwner(
+                eq(admin1.getPackageName()));
+
         assertEquals(admin1.getPackageName(), dpm.getDeviceOwner());
 
         // Set up other mocks.
@@ -576,6 +584,10 @@
         dpm.setActiveAdmin(admin1, /* replace =*/ false);
         assertTrue(dpm.setDeviceOwner(admin1, "owner-name"));
 
+        // Verify internal calls.
+        verify(mContext.iactivityManager, times(1)).updateDeviceOwner(
+                eq(admin1.getPackageName()));
+
         assertEquals(admin1.getPackageName(), dpm.getDeviceOwner());
 
         // Now call clear from the secondary user, which should throw.
diff --git a/tools/layoutlib/bridge/src/android/view/BridgeInflater.java b/tools/layoutlib/bridge/src/android/view/BridgeInflater.java
index 5db1bde..723e827 100644
--- a/tools/layoutlib/bridge/src/android/view/BridgeInflater.java
+++ b/tools/layoutlib/bridge/src/android/view/BridgeInflater.java
@@ -23,6 +23,7 @@
 import com.android.ide.common.rendering.api.ResourceValue;
 import com.android.layoutlib.bridge.Bridge;
 import com.android.layoutlib.bridge.BridgeConstants;
+import com.android.layoutlib.bridge.MockView;
 import com.android.layoutlib.bridge.android.BridgeContext;
 import com.android.layoutlib.bridge.android.BridgeXmlBlockParser;
 import com.android.layoutlib.bridge.android.support.DrawerLayoutUtil;
@@ -126,6 +127,9 @@
             if (view == null) {
                 view = loadCustomView(name, attrs);
             }
+        } catch (InflateException e) {
+            // Don't catch the InflateException below as that results in hiding the real cause.
+            throw e;
         } catch (Exception e) {
             // Wrap the real exception in a ClassNotFoundException, so that the calling method
             // can deal with it.
@@ -154,23 +158,30 @@
                 }
                 ta.recycle();
             }
-            final Object lastContext = mConstructorArgs[0];
-            mConstructorArgs[0] = context;
-            // try to load the class from using the custom view loader
-            try {
-                view = loadCustomView(name, attrs);
-            } catch (Exception e2) {
-                // Wrap the real exception in an InflateException so that the calling
-                // method can deal with it.
-                InflateException exception = new InflateException();
-                if (!e2.getClass().equals(ClassNotFoundException.class)) {
-                    exception.initCause(e2);
-                } else {
-                    exception.initCause(e);
+            if (!(e.getCause() instanceof ClassNotFoundException)) {
+                // There is some unknown inflation exception in inflating a View that was found.
+                view = new MockView(context, attrs);
+                ((MockView) view).setText(name);
+                Bridge.getLog().error(LayoutLog.TAG_BROKEN, e.getMessage(), e, null);
+            } else {
+                final Object lastContext = mConstructorArgs[0];
+                mConstructorArgs[0] = context;
+                // try to load the class from using the custom view loader
+                try {
+                    view = loadCustomView(name, attrs);
+                } catch (Exception e2) {
+                    // Wrap the real exception in an InflateException so that the calling
+                    // method can deal with it.
+                    InflateException exception = new InflateException();
+                    if (!e2.getClass().equals(ClassNotFoundException.class)) {
+                        exception.initCause(e2);
+                    } else {
+                        exception.initCause(e);
+                    }
+                    throw exception;
+                } finally {
+                    mConstructorArgs[0] = lastContext;
                 }
-                throw exception;
-            } finally {
-                mConstructorArgs[0] = lastContext;
             }
         }
 
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/MockView.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/MockView.java
index 44a9aad..d392f21 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/MockView.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/MockView.java
@@ -17,39 +17,90 @@
 package com.android.layoutlib.bridge;
 
 import android.content.Context;
-import android.graphics.Canvas;
 import android.util.AttributeSet;
 import android.view.Gravity;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
 import android.widget.TextView;
 
 /**
  * Base class for mocked views.
- *
- * TODO: implement onDraw and draw a rectangle in a random color with the name of the class
- * (or better the id of the view).
+ * <p/>
+ * FrameLayout with a single TextView. Doesn't allow adding any other views to itself.
  */
-public class MockView extends TextView {
+public class MockView extends FrameLayout {
+
+    private final TextView mView;
+
+    public MockView(Context context) {
+        this(context, null);
+    }
 
     public MockView(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }
 
-    public MockView(Context context, AttributeSet attrs, int defStyle) {
-        this(context, attrs, defStyle, 0);
+    public MockView(Context context, AttributeSet attrs, int defStyleAttr) {
+        this(context, attrs, defStyleAttr, 0);
     }
 
     public MockView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
         super(context, attrs, defStyleAttr, defStyleRes);
-
-        setText(this.getClass().getSimpleName());
-        setTextColor(0xFF000000);
+        mView = new TextView(context, attrs);
+        mView.setTextColor(0xFF000000);
         setGravity(Gravity.CENTER);
+        setText(getClass().getSimpleName());
+        addView(mView);
+        setBackgroundColor(0xFF7F7F7F);
+    }
+
+    // Only allow adding one TextView.
+    @Override
+    public void addView(View child) {
+        if (child == mView) {
+            super.addView(child);
+        }
     }
 
     @Override
-    public void onDraw(Canvas canvas) {
-        canvas.drawARGB(0xFF, 0x7F, 0x7F, 0x7F);
+    public void addView(View child, int index) {
+        if (child == mView) {
+            super.addView(child, index);
+        }
+    }
 
-        super.onDraw(canvas);
+    @Override
+    public void addView(View child, int width, int height) {
+        if (child == mView) {
+            super.addView(child, width, height);
+        }
+    }
+
+    @Override
+    public void addView(View child, ViewGroup.LayoutParams params) {
+        if (child == mView) {
+            super.addView(child, params);
+        }
+    }
+
+    @Override
+    public void addView(View child, int index, ViewGroup.LayoutParams params) {
+        if (child == mView) {
+            super.addView(child, index, params);
+        }
+    }
+
+    // The following methods are called by the IDE via reflection, and should be considered part
+    // of the API.
+    // Historically, MockView used to be a textView and had these methods. Now, we simply delegate
+    // them to the contained textView.
+
+    public void setText(CharSequence text) {
+        mView.setText(text);
+    }
+
+    public void setGravity(int gravity) {
+        mView.setGravity(gravity);
     }
 }