Merge "Change "touch" to "tap"."
diff --git a/api/current.txt b/api/current.txt
index e0b92f4..729f4da 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -5686,10 +5686,13 @@
     method public android.graphics.drawable.Drawable peekFastDrawable();
     method public void sendWallpaperCommand(android.os.IBinder, java.lang.String, int, int, int, android.os.Bundle);
     method public void setBitmap(android.graphics.Bitmap) throws java.io.IOException;
-    method public void setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean, int) throws java.io.IOException;
     method public void setResource(int) throws java.io.IOException;
+    method public int setResource(int, int) throws java.io.IOException;
     method public void setStream(java.io.InputStream) throws java.io.IOException;
-    method public void setStream(java.io.InputStream, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setStream(java.io.InputStream, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setStream(java.io.InputStream, android.graphics.Rect, boolean, int) throws java.io.IOException;
     method public void setWallpaperOffsetSteps(float, float);
     method public void setWallpaperOffsets(android.os.IBinder, float, float);
     method public void suggestDesiredDimensions(int, int);
@@ -5700,6 +5703,8 @@
     field public static final java.lang.String COMMAND_SECONDARY_TAP = "android.wallpaper.secondaryTap";
     field public static final java.lang.String COMMAND_TAP = "android.wallpaper.tap";
     field public static final java.lang.String EXTRA_LIVE_WALLPAPER_COMPONENT = "android.service.wallpaper.extra.LIVE_WALLPAPER_COMPONENT";
+    field public static final int FLAG_SET_LOCK = 2; // 0x2
+    field public static final int FLAG_SET_SYSTEM = 1; // 0x1
     field public static final java.lang.String WALLPAPER_PREVIEW_META_DATA = "android.wallpaper.preview";
   }
 
diff --git a/api/system-current.txt b/api/system-current.txt
index 6b84f56..da83f6a 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5818,12 +5818,15 @@
     method public android.graphics.drawable.Drawable peekFastDrawable();
     method public void sendWallpaperCommand(android.os.IBinder, java.lang.String, int, int, int, android.os.Bundle);
     method public void setBitmap(android.graphics.Bitmap) throws java.io.IOException;
-    method public void setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean, int) throws java.io.IOException;
     method public void setDisplayOffset(android.os.IBinder, int, int);
     method public void setDisplayPadding(android.graphics.Rect);
     method public void setResource(int) throws java.io.IOException;
+    method public int setResource(int, int) throws java.io.IOException;
     method public void setStream(java.io.InputStream) throws java.io.IOException;
-    method public void setStream(java.io.InputStream, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setStream(java.io.InputStream, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setStream(java.io.InputStream, android.graphics.Rect, boolean, int) throws java.io.IOException;
     method public boolean setWallpaperComponent(android.content.ComponentName);
     method public void setWallpaperOffsetSteps(float, float);
     method public void setWallpaperOffsets(android.os.IBinder, float, float);
@@ -5835,6 +5838,8 @@
     field public static final java.lang.String COMMAND_SECONDARY_TAP = "android.wallpaper.secondaryTap";
     field public static final java.lang.String COMMAND_TAP = "android.wallpaper.tap";
     field public static final java.lang.String EXTRA_LIVE_WALLPAPER_COMPONENT = "android.service.wallpaper.extra.LIVE_WALLPAPER_COMPONENT";
+    field public static final int FLAG_SET_LOCK = 2; // 0x2
+    field public static final int FLAG_SET_SYSTEM = 1; // 0x1
     field public static final java.lang.String WALLPAPER_PREVIEW_META_DATA = "android.wallpaper.preview";
   }
 
@@ -46620,12 +46625,18 @@
     method public abstract void deleteKey(android.net.Uri, android.webkit.ValueCallback<java.lang.Boolean>);
     method public abstract void enableTokenBinding();
     method public static android.webkit.TokenBindingService getInstance();
-    method public abstract void getKey(android.net.Uri, java.lang.String, android.webkit.ValueCallback<java.security.KeyPair>);
+    method public abstract void getKey(android.net.Uri, java.lang.String[], android.webkit.ValueCallback<android.webkit.TokenBindingService.TokenBindingKey>);
     field public static final java.lang.String KEY_ALGORITHM_ECDSAP256 = "ECDSAP256";
     field public static final java.lang.String KEY_ALGORITHM_RSA2048_PKCS_1_5 = "RSA2048_PKCS_1.5";
     field public static final java.lang.String KEY_ALGORITHM_RSA2048_PSS = "RSA2048PSS";
   }
 
+  public static abstract class TokenBindingService.TokenBindingKey {
+    ctor public TokenBindingService.TokenBindingKey();
+    method public abstract java.lang.String getAlgorithm();
+    method public abstract java.security.KeyPair getKeyPair();
+  }
+
   public final class URLUtil {
     ctor public URLUtil();
     method public static java.lang.String composeSearchUrl(java.lang.String, java.lang.String, java.lang.String);
diff --git a/api/test-current.txt b/api/test-current.txt
index f003875..4193cad 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -5688,10 +5688,13 @@
     method public android.graphics.drawable.Drawable peekFastDrawable();
     method public void sendWallpaperCommand(android.os.IBinder, java.lang.String, int, int, int, android.os.Bundle);
     method public void setBitmap(android.graphics.Bitmap) throws java.io.IOException;
-    method public void setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setBitmap(android.graphics.Bitmap, android.graphics.Rect, boolean, int) throws java.io.IOException;
     method public void setResource(int) throws java.io.IOException;
+    method public int setResource(int, int) throws java.io.IOException;
     method public void setStream(java.io.InputStream) throws java.io.IOException;
-    method public void setStream(java.io.InputStream, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setStream(java.io.InputStream, android.graphics.Rect, boolean) throws java.io.IOException;
+    method public int setStream(java.io.InputStream, android.graphics.Rect, boolean, int) throws java.io.IOException;
     method public void setWallpaperOffsetSteps(float, float);
     method public void setWallpaperOffsets(android.os.IBinder, float, float);
     method public void suggestDesiredDimensions(int, int);
@@ -5702,6 +5705,8 @@
     field public static final java.lang.String COMMAND_SECONDARY_TAP = "android.wallpaper.secondaryTap";
     field public static final java.lang.String COMMAND_TAP = "android.wallpaper.tap";
     field public static final java.lang.String EXTRA_LIVE_WALLPAPER_COMPONENT = "android.service.wallpaper.extra.LIVE_WALLPAPER_COMPONENT";
+    field public static final int FLAG_SET_LOCK = 2; // 0x2
+    field public static final int FLAG_SET_SYSTEM = 1; // 0x1
     field public static final java.lang.String WALLPAPER_PREVIEW_META_DATA = "android.wallpaper.preview";
   }
 
diff --git a/core/java/android/app/IWallpaperManager.aidl b/core/java/android/app/IWallpaperManager.aidl
index ccba250..7a0e7f6 100644
--- a/core/java/android/app/IWallpaperManager.aidl
+++ b/core/java/android/app/IWallpaperManager.aidl
@@ -28,37 +28,47 @@
 
     /**
      * Set the wallpaper.
+     *
+     * If 'extras' is non-null, on successful return it will contain:
+     *   EXTRA_SET_WALLPAPER_ID : integer ID that the new wallpaper will have
+     *
+     * 'which' is some combination of:
+     *   FLAG_SET_SYSTEM
+     *   FLAG_SET_LOCK
      */
-    ParcelFileDescriptor setWallpaper(String name, in String callingPackage);
+    ParcelFileDescriptor setWallpaper(String name, in String callingPackage,
+            out Bundle extras, int which);
     
     /**
-     * Set the live wallpaper.
+     * Set the live wallpaper. This only affects the system wallpaper.
      */
     void setWallpaperComponentChecked(in ComponentName name, in String callingPackage);
 
     /**
-     * Set the live wallpaper.
+     * Set the live wallpaper. This only affects the system wallpaper.
      */
     void setWallpaperComponent(in ComponentName name);
 
     /**
-     * Get the wallpaper.
+     * Get the system wallpaper.
      */
     ParcelFileDescriptor getWallpaper(IWallpaperManagerCallback cb,
             out Bundle outParams);
     
     /**
-     * Get information about a live wallpaper.
+     * If the current system wallpaper is a live wallpaper component, return the
+     * information about that wallpaper.  Otherwise, if it is a static image,
+     * simply return null.
      */
     WallpaperInfo getWallpaperInfo();
     
     /**
-     * Clear the wallpaper.
+     * Clear the system wallpaper.
      */
     void clearWallpaper(in String callingPackage);
 
     /**
-     * Return whether there is a wallpaper set with the given name.
+     * Return whether the current system wallpaper has the given name.
      */
     boolean hasNamedWallpaper(String name);
 
diff --git a/core/java/android/app/Instrumentation.java b/core/java/android/app/Instrumentation.java
index 7184337..24a3470 100644
--- a/core/java/android/app/Instrumentation.java
+++ b/core/java/android/app/Instrumentation.java
@@ -545,7 +545,7 @@
          * returning the resulting activity or till the timeOut period expires.
          * If the timeOut expires before the activity is started, return null. 
          * 
-         * @param timeOut Time to wait before the activity is created.
+         * @param timeOut Time to wait in milliseconds before the activity is created.
          * 
          * @return Activity
          */
diff --git a/core/java/android/app/WallpaperManager.java b/core/java/android/app/WallpaperManager.java
index 5b5bba4..f103576 100644
--- a/core/java/android/app/WallpaperManager.java
+++ b/core/java/android/app/WallpaperManager.java
@@ -16,6 +16,7 @@
 
 package android.app;
 
+import android.annotation.IntDef;
 import android.annotation.RawRes;
 import android.annotation.SystemApi;
 import android.content.ComponentName;
@@ -60,6 +61,8 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.List;
 
 /**
@@ -144,7 +147,33 @@
      * and y arguments are the location of the drop.
      */
     public static final String COMMAND_DROP = "android.home.drop";
-    
+
+    /**
+     * Extra passed back from setWallpaper() giving the new wallpaper's assigned ID.
+     * @hide
+     */
+    public static final String EXTRA_NEW_WALLPAPER_ID = "android.service.wallpaper.extra.ID";
+
+    // flags for which kind of wallpaper to set
+
+    /** @hide */
+    @IntDef(flag = true, value = {
+            FLAG_SET_SYSTEM,
+            FLAG_SET_LOCK
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface SetWallpaperFlags {}
+
+    /**
+     * Flag: use the supplied imagery as the general system wallpaper.
+     */
+    public static final int FLAG_SET_SYSTEM = 1 << 0;
+
+    /**
+     * Flag: use the supplied imagery as the lock-screen wallpaper.
+     */
+    public static final int FLAG_SET_LOCK = 1 << 1;
+
     private final Context mContext;
     
     /**
@@ -717,20 +746,41 @@
      * wallpaper.
      */
     public void setResource(@RawRes int resid) throws IOException {
+        setResource(resid, FLAG_SET_SYSTEM);
+    }
+
+    /**
+     * Version of {@link #setResource(int)} that takes an optional Bundle for returning
+     * metadata about the operation to the caller.
+     *
+     * @param resid
+     * @param which Flags indicating which wallpaper(s) to configure with the new imagery.
+     *
+     * @see #FLAG_SET_LOCK
+     * @see #FLAG_SET_SYSTEM
+     *
+     * @return An integer ID assigned to the newly active wallpaper; or zero on failure.
+     *
+     * @throws IOException
+     */
+    public int setResource(@RawRes int resid, @SetWallpaperFlags int which)
+            throws IOException {
         if (sGlobals.mService == null) {
             Log.w(TAG, "WallpaperService not running");
-            return;
+            return 0;
         }
+        final Bundle result = new Bundle();
         try {
             Resources resources = mContext.getResources();
             /* Set the wallpaper to the default values */
             ParcelFileDescriptor fd = sGlobals.mService.setWallpaper(
-                    "res:" + resources.getResourceName(resid), mContext.getOpPackageName());
+                    "res:" + resources.getResourceName(resid),
+                    mContext.getOpPackageName(), result, which);
             if (fd != null) {
                 FileOutputStream fos = null;
                 try {
                     fos = new ParcelFileDescriptor.AutoCloseOutputStream(fd);
-                    setWallpaper(resources.openRawResource(resid), fos);
+                    copyStreamToWallpaperFile(resources.openRawResource(resid), fos);
                 } finally {
                     IoUtils.closeQuietly(fos);
                 }
@@ -738,6 +788,7 @@
         } catch (RemoteException e) {
             // Ignore
         }
+        return result.getInt(EXTRA_NEW_WALLPAPER_ID, 0);
     }
 
     /**
@@ -753,7 +804,7 @@
      * <p>This method requires the caller to hold the permission
      * {@link android.Manifest.permission#SET_WALLPAPER}.
      *
-     * @param bitmap The bitmap to save.
+     * @param bitmap The bitmap to be used as the new system wallpaper.
      *
      * @throws IOException If an error occurs when attempting to set the wallpaper
      *     to the provided image.
@@ -775,42 +826,72 @@
      * <p>This method requires the caller to hold the permission
      * {@link android.Manifest.permission#SET_WALLPAPER}.
      *
-     * @param fullImage A bitmap that will supply the wallpaper imagery. 
+     * @param fullImage A bitmap that will supply the wallpaper imagery.
      * @param visibleCropHint The rectangular subregion of {@code fullImage} that should be
      *     displayed as wallpaper.  Passing {@code null} for this parameter means that
      *     the full image should be displayed if possible given the image's and device's
-     *     aspect ratios, etc. 
+     *     aspect ratios, etc.
      * @param allowBackup {@code true} if the OS is permitted to back up this wallpaper
      *     image for restore to a future device; {@code false} otherwise.
      *
+     * @return An integer ID assigned to the newly active wallpaper; or zero on failure.
+     *
      * @throws IOException If an error occurs when attempting to set the wallpaper
      *     to the provided image.
      * @throws IllegalArgumentException If the {@code visibleCropHint} rectangle is
      *     empty or invalid.
      */
-    public void setBitmap(Bitmap fullImage, Rect visibleCropHint, boolean allowBackup)
+    public int setBitmap(Bitmap fullImage, Rect visibleCropHint, boolean allowBackup)
+            throws IOException {
+        return setBitmap(fullImage, visibleCropHint, allowBackup, FLAG_SET_SYSTEM);
+    }
+
+    /**
+    /**
+     * Version of {@link #setBitmap(Bitmap, Rect, boolean)} that allows the caller
+     * to specify which of the supported wallpaper categories to set.
+     *
+     * @param fullImage A bitmap that will supply the wallpaper imagery.
+     * @param visibleCropHint The rectangular subregion of {@code fullImage} that should be
+     *     displayed as wallpaper.  Passing {@code null} for this parameter means that
+     *     the full image should be displayed if possible given the image's and device's
+     *     aspect ratios, etc.
+     * @param allowBackup {@code true} if the OS is permitted to back up this wallpaper
+     *     image for restore to a future device; {@code false} otherwise.
+     * @param which Flags indicating which wallpaper(s) to configure with the new imagery.
+     *
+     * @see #FLAG_SET_LOCK_WALLPAPER
+     * @see #FLAG_SET_SYSTEM_WALLPAPER
+     *
+     * @return An integer ID assigned to the newly active wallpaper; or zero on failure.
+     *
+     * @throws IOException
+     */
+    public int setBitmap(Bitmap fullImage, Rect visibleCropHint,
+            boolean allowBackup, @SetWallpaperFlags int which)
             throws IOException {
         validateRect(visibleCropHint);
         if (sGlobals.mService == null) {
             Log.w(TAG, "WallpaperService not running");
-            return;
+            return 0;
         }
+        final Bundle result = new Bundle();
         try {
             ParcelFileDescriptor fd = sGlobals.mService.setWallpaper(null,
-                    mContext.getOpPackageName());
-            if (fd == null) {
-                return;
-            }
-            FileOutputStream fos = null;
-            try {
-                fos = new ParcelFileDescriptor.AutoCloseOutputStream(fd);
-                fullImage.compress(Bitmap.CompressFormat.PNG, 90, fos);
-            } finally {
-                IoUtils.closeQuietly(fos);
+                    mContext.getOpPackageName(), result, which);
+            if (fd != null) {
+                FileOutputStream fos = null;
+                try {
+                    fos = new ParcelFileDescriptor.AutoCloseOutputStream(fd);
+                    fullImage.compress(Bitmap.CompressFormat.PNG, 90, fos);
+                } finally {
+                    IoUtils.closeQuietly(fos);
+                }
             }
         } catch (RemoteException e) {
             // Ignore
         }
+        return result.getInt(EXTRA_NEW_WALLPAPER_ID, 0);
     }
 
     private final void validateRect(Rect rect) {
@@ -843,7 +924,7 @@
         setStream(bitmapData, null, true);
     }
 
-    private void setWallpaper(InputStream data, FileOutputStream fos)
+    private void copyStreamToWallpaperFile(InputStream data, FileOutputStream fos)
             throws IOException {
         byte[] buffer = new byte[32768];
         int amt;
@@ -877,29 +958,55 @@
      * @throws IllegalArgumentException If the {@code visibleCropHint} rectangle is
      *     empty or invalid.
      */
-    public void setStream(InputStream bitmapData, Rect visibleCropHint, boolean allowBackup)
+    public int setStream(InputStream bitmapData, Rect visibleCropHint, boolean allowBackup)
             throws IOException {
+        return setStream(bitmapData, visibleCropHint, allowBackup, FLAG_SET_SYSTEM);
+    }
+
+    /**
+     * Version of {@link #setStream(InputStream, Rect, boolean)} that allows the caller
+     * to specify which of the supported wallpaper categories to set.
+     *
+     * @param bitmapData A stream containing the raw data to install as a wallpaper.
+     * @param visibleCropHint The rectangular subregion of the streamed image that should be
+     *     displayed as wallpaper.  Passing {@code null} for this parameter means that
+     *     the full image should be displayed if possible given the image's and device's
+     *     aspect ratios, etc.
+     * @param allowBackup {@code true} if the OS is permitted to back up this wallpaper
+     *     image for restore to a future device; {@code false} otherwise.
+     * @param which Flags indicating which wallpaper(s) to configure with the new imagery.
+     *
+     * @see #FLAG_SET_LOCK_WALLPAPER
+     * @see #FLAG_SET_SYSTEM_WALLPAPER
+     *
+     * @throws IOException
+     */
+    public int setStream(InputStream bitmapData, Rect visibleCropHint,
+            boolean allowBackup, @SetWallpaperFlags int which)
+                    throws IOException {
         validateRect(visibleCropHint);
         if (sGlobals.mService == null) {
             Log.w(TAG, "WallpaperService not running");
-            return;
+            return 0;
         }
+        final Bundle result = new Bundle();
         try {
             ParcelFileDescriptor fd = sGlobals.mService.setWallpaper(null,
-                    mContext.getOpPackageName());
-            if (fd == null) {
-                return;
-            }
-            FileOutputStream fos = null;
-            try {
-                fos = new ParcelFileDescriptor.AutoCloseOutputStream(fd);
-                setWallpaper(bitmapData, fos);
-            } finally {
-                IoUtils.closeQuietly(fos);
+                    mContext.getOpPackageName(), result, which);
+            if (fd != null) {
+                FileOutputStream fos = null;
+                try {
+                    fos = new ParcelFileDescriptor.AutoCloseOutputStream(fd);
+                    copyStreamToWallpaperFile(bitmapData, fos);
+                } finally {
+                    IoUtils.closeQuietly(fos);
+                }
             }
         } catch (RemoteException e) {
             // Ignore
         }
+
+        return result.getInt(EXTRA_NEW_WALLPAPER_ID, 0);
     }
 
     /**
diff --git a/core/java/android/webkit/TokenBindingService.java b/core/java/android/webkit/TokenBindingService.java
index f11ce51..f7caac7 100644
--- a/core/java/android/webkit/TokenBindingService.java
+++ b/core/java/android/webkit/TokenBindingService.java
@@ -38,6 +38,21 @@
     public static final String KEY_ALGORITHM_ECDSAP256 = "ECDSAP256";
 
     /**
+     * Provides the KeyPair information.
+     */
+    public static abstract class TokenBindingKey {
+        /**
+         * The public, private key pair.
+         */
+        public abstract KeyPair getKeyPair();
+
+        /**
+         * The algorithm that is used to generate the key pair.
+         */
+        public abstract String getAlgorithm();
+    }
+
+    /**
      * Returns the default TokenBinding service instance. At present there is
      * only one token binding service instance for all WebView instances,
      * however this restriction may be relaxed in the future.
@@ -59,16 +74,25 @@
     /**
      * Retrieves the key pair for a given origin from the internal
      * TokenBinding key store asynchronously.
-     * Will create a key pair if one does not exist.
+     *
+     * The user can provide a list of acceptable algorithms for the retrieved
+     * key pair. If a key pair exists and it is in the list of algorithms, then
+     * the key is returned. If it is not in the list, no key is returned.
+     *
+     * If no key pair exists, WebView chooses an algorithm from the list, in
+     * the order given, to generate a key.
+     *
+     * The user can pass a null if any algorithm is acceptable.
      *
      * @param origin The origin for the server.
-     * @param algorithm The algorithm for generating the token binding key.
+     * @param algorithm The list of algorithms. Can be null. An
+     *        IllegalArgumentException is thrown if array is empty.
      * @param callback The callback that will be called when key is available.
      *        Cannot be null.
      */
     public abstract void getKey(Uri origin,
-                                String algorithm,
-                                ValueCallback<KeyPair> callback);
+                                String[] algorithm,
+                                ValueCallback<TokenBindingKey> callback);
     /**
      * Deletes specified key (for use when associated cookie is cleared).
      *
diff --git a/core/java/com/android/internal/os/KernelCpuSpeedReader.java b/core/java/com/android/internal/os/KernelCpuSpeedReader.java
index 5b776ac..3f6ebb9 100644
--- a/core/java/com/android/internal/os/KernelCpuSpeedReader.java
+++ b/core/java/com/android/internal/os/KernelCpuSpeedReader.java
@@ -16,8 +16,11 @@
 package com.android.internal.os;
 
 import android.text.TextUtils;
+import android.system.OsConstants;
 import android.util.Slog;
 
+import libcore.io.Libcore;
+
 import java.io.BufferedReader;
 import java.io.FileReader;
 import java.io.IOException;
@@ -29,7 +32,7 @@
  *
  * freq time
  *
- * where time is measured in 1/100 seconds.
+ * where time is measured in jiffies.
  */
 public class KernelCpuSpeedReader {
     private static final String TAG = "KernelCpuSpeedReader";
@@ -38,6 +41,9 @@
     private final long[] mLastSpeedTimes;
     private final long[] mDeltaSpeedTimes;
 
+    // How long a CPU jiffy is in milliseconds.
+    private final long mJiffyMillis;
+
     /**
      * @param cpuNumber The cpu (cpu0, cpu1, etc) whose state to read.
      */
@@ -46,6 +52,8 @@
                 cpuNumber);
         mLastSpeedTimes = new long[numSpeedSteps];
         mDeltaSpeedTimes = new long[numSpeedSteps];
+        long jiffyHz = Libcore.os.sysconf(OsConstants._SC_CLK_TCK);
+        mJiffyMillis = 1000/jiffyHz;
     }
 
     /**
@@ -62,8 +70,7 @@
                 splitter.setString(line);
                 Long.parseLong(splitter.next());
 
-                // The proc file reports time in 1/100 sec, so convert to milliseconds.
-                long time = Long.parseLong(splitter.next()) * 10;
+                long time = Long.parseLong(splitter.next()) * mJiffyMillis;
                 if (time < mLastSpeedTimes[speedIndex]) {
                     // The stats reset when the cpu hotplugged. That means that the time
                     // we read is offset from 0, so the time is the delta.
diff --git a/core/java/com/android/internal/os/ProcessCpuTracker.java b/core/java/com/android/internal/os/ProcessCpuTracker.java
index bf97f1f..d831902 100644
--- a/core/java/com/android/internal/os/ProcessCpuTracker.java
+++ b/core/java/com/android/internal/os/ProcessCpuTracker.java
@@ -67,10 +67,10 @@
     static final int PROCESS_STAT_UTIME = 2;
     static final int PROCESS_STAT_STIME = 3;
 
-    /** Stores user time and system time in 100ths of a second. */
+    /** Stores user time and system time in jiffies. */
     private final long[] mProcessStatsData = new long[4];
 
-    /** Stores user time and system time in 100ths of a second.  Used for
+    /** Stores user time and system time in jiffies.  Used for
      * public API to retrieve CPU use for a process.  Must lock while in use. */
     private final long[] mSinglePidStatsData = new long[4];
 
diff --git a/include/androidfw/ResourceTypes.h b/include/androidfw/ResourceTypes.h
index 88fecce..d8801b8 100644
--- a/include/androidfw/ResourceTypes.h
+++ b/include/androidfw/ResourceTypes.h
@@ -1128,7 +1128,6 @@
     // configuration. (eg. Hant, Latn, etc.). Interpreted in conjunction with
     // the locale field.
     char localeScript[4];
-    bool localeScriptWasProvided;
 
     // A single BCP-47 variant subtag. Will vary in length between 4 and 8
     // chars. Interpreted in conjunction with the locale field.
@@ -1152,6 +1151,10 @@
         uint32_t screenConfig2;
     };
 
+    // If true, it means that the script of the locale was explicitly provided.
+    // If false, it means that the script was automatically computed.
+    bool localeScriptWasProvided;
+
     void copyFromDeviceNoSwap(const ResTable_config& o);
     
     void copyFromDtoH(const ResTable_config& o);
diff --git a/packages/DocumentsUI/res/layout/dialog_create_dir.xml b/packages/DocumentsUI/res/layout/dialog_file_name.xml
similarity index 100%
rename from packages/DocumentsUI/res/layout/dialog_create_dir.xml
rename to packages/DocumentsUI/res/layout/dialog_file_name.xml
diff --git a/packages/DocumentsUI/res/menu/mode_directory.xml b/packages/DocumentsUI/res/menu/mode_directory.xml
index 4ff396f..6f9bfb5 100644
--- a/packages/DocumentsUI/res/menu/mode_directory.xml
+++ b/packages/DocumentsUI/res/menu/mode_directory.xml
@@ -48,4 +48,9 @@
         android:title="@string/menu_move"
         android:showAsAction="never"
         android:visible="false" />
+    <item
+        android:id="@+id/menu_rename"
+        android:title="@string/menu_rename"
+        android:showAsAction="never"
+        android:visible="false" />
 </menu>
diff --git a/packages/DocumentsUI/res/values/strings.xml b/packages/DocumentsUI/res/values/strings.xml
index 30c1238..8ac228e 100644
--- a/packages/DocumentsUI/res/values/strings.xml
+++ b/packages/DocumentsUI/res/values/strings.xml
@@ -192,4 +192,8 @@
     </plurals>
     <!-- Toast shown when a user tries to paste files into an unsupported location. -->
     <string name="clipboard_files_cannot_paste">Cannot paste the selected files in this location.</string>
+    <!-- Menu item that renames the selected document [CHAR LIMIT=24] -->
+    <string name="menu_rename">Rename</string>
+    <!-- Toast shown when renaming document failed with an error [CHAR LIMIT=48] -->
+    <string name="rename_error">Failed to rename document</string>
 </resources>
diff --git a/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java b/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
index 0fb8daf..f43b81c 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
@@ -437,7 +437,7 @@
         DirectoryFragment.get(getFragmentManager()).onUserModeChanged();
     }
 
-    void setPending(boolean pending) {
+    public void setPending(boolean pending) {
         final SaveFragment save = SaveFragment.get(getFragmentManager());
         if (save != null) {
             save.setPending(pending);
diff --git a/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java b/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java
index f3c3f2f..df036b9 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java
@@ -63,7 +63,7 @@
         final AlertDialog.Builder builder = new AlertDialog.Builder(context);
         final LayoutInflater dialogInflater = LayoutInflater.from(builder.getContext());
 
-        final View view = dialogInflater.inflate(R.layout.dialog_create_dir, null, false);
+        final View view = dialogInflater.inflate(R.layout.dialog_file_name, null, false);
         final EditText editText = (EditText) view.findViewById(android.R.id.text1);
 
         builder.setTitle(R.string.menu_create_dir);
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
index bfd40bb..809db31 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
@@ -93,6 +93,7 @@
 import com.android.documentsui.RecentLoader;
 import com.android.documentsui.RecentsProvider;
 import com.android.documentsui.RecentsProvider.StateColumns;
+import com.android.documentsui.dirlist.RenameDocumentFragment;
 import com.android.documentsui.RootsCache;
 import com.android.documentsui.Shared;
 import com.android.documentsui.Snackbars;
@@ -559,6 +560,7 @@
         private Selection mSelected = new Selection();
         private ActionMode mActionMode;
         private int mNoDeleteCount = 0;
+        private int mNoRenameCount = -1;
         private Menu mMenu;
 
         @Override
@@ -582,6 +584,9 @@
             if ((docFlags & Document.FLAG_SUPPORTS_DELETE) == 0) {
                 mNoDeleteCount += selected ? 1 : -1;
             }
+            if ((docFlags & Document.FLAG_SUPPORTS_RENAME) != 0) {
+                mNoRenameCount += selected ? 1 : -1;
+            }
         }
 
         @Override
@@ -620,6 +625,7 @@
             mSelectionManager.clearSelection();
             mSelected.clear();
             mNoDeleteCount = 0;
+            mNoRenameCount = -1;
         }
 
         @Override
@@ -637,10 +643,19 @@
             return true;
         }
 
+        boolean canRenameSelection() {
+            return mNoRenameCount == 0 && mSelectionManager.getSelection().size() == 1;
+        }
+
+        boolean canDeleteSelection() {
+            return mNoDeleteCount == 0;
+        }
+
         private void updateActionMenu() {
             checkNotNull(mMenu);
+
             // Delegate update logic to our owning action, since specialized logic is desired.
-            mTuner.updateActionMenu(mMenu, mType, mNoDeleteCount == 0);
+            mTuner.updateActionMenu(mMenu, mType, canDeleteSelection(), canRenameSelection());
             Menus.disableHiddenItems(mMenu);
         }
 
@@ -680,6 +695,7 @@
                 case R.id.menu_copy_to_clipboard:
                     if (!selection.isEmpty()) {
                         copySelectionToClipboard(selection);
+                        mode.finish();
                     }
                     return true;
 
@@ -687,6 +703,11 @@
                     selectAllFiles();
                     return true;
 
+                case R.id.menu_rename:
+                    renameDocuments(selection);
+                    mode.finish();
+                    return true;
+
                 default:
                     if (DEBUG) Log.d(TAG, "Unhandled menu item selected: " + item);
                     return false;
@@ -834,6 +855,19 @@
         }.execute(selected);
     }
 
+    private void renameDocuments(Selection selected) {
+        // Batch renaming not supported
+        // Rename option is only available in menu when 1 document selected
+        checkArgument(selected.size() == 1);
+
+        new GetDocumentsTask() {
+            @Override
+            void onDocumentsReady(List<DocumentInfo> docs) {
+                RenameDocumentFragment.show(getFragmentManager(), docs.get(0));
+            }
+        }.execute(selected);
+    }
+
     @Override
     public void initDocumentHolder(DocumentHolder holder) {
         holder.addEventListener(mItemEventListener);
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/FragmentTuner.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/FragmentTuner.java
index ef6d2c9..a295ab2 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/FragmentTuner.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/FragmentTuner.java
@@ -58,7 +58,8 @@
     }
 
 
-    public abstract void updateActionMenu(Menu menu, int dirType, boolean canDelete);
+    public abstract void updateActionMenu(Menu menu, int dirType, boolean canDelete,
+            boolean canRename);
 
     // Subtly different from isDocumentEnabled. The reason may be illuminated as follows.
     // A folder is enabled such that it may be double clicked, even in settings
@@ -129,7 +130,8 @@
         }
 
         @Override
-        public void updateActionMenu(Menu menu, int dirType, boolean canDelete) {
+        public void updateActionMenu(Menu menu, int dirType, boolean canDelete,
+                boolean canRename) {
 
             boolean copyEnabled = dirType != DirectoryFragment.TYPE_RECENT_OPEN;
             boolean moveEnabled =
@@ -141,6 +143,7 @@
             final MenuItem delete = menu.findItem(R.id.menu_delete);
             final MenuItem copyTo = menu.findItem(R.id.menu_copy_to);
             final MenuItem moveTo = menu.findItem(R.id.menu_move_to);
+            final MenuItem rename = menu.findItem(R.id.menu_rename);
 
             open.setVisible(true);
             share.setVisible(false);
@@ -149,6 +152,7 @@
             copyTo.setEnabled(copyEnabled);
             moveTo.setVisible(moveEnabled);
             moveTo.setEnabled(moveEnabled);
+            rename.setVisible(false);
         }
     }
 
@@ -162,7 +166,8 @@
         }
 
         @Override
-        public void updateActionMenu(Menu menu, int dirType, boolean canDelete) {
+        public void updateActionMenu(Menu menu, int dirType, boolean canDelete,
+                boolean canRename) {
             checkArgument(dirType != DirectoryFragment.TYPE_RECENT_OPEN);
 
             boolean moveEnabled =
@@ -174,6 +179,7 @@
             final MenuItem delete = menu.findItem(R.id.menu_delete);
             final MenuItem copyTo = menu.findItem(R.id.menu_copy_to);
             final MenuItem moveTo = menu.findItem(R.id.menu_move_to);
+            final MenuItem rename = menu.findItem(R.id.menu_rename);
 
             open.setVisible(false);
             delete.setVisible(canDelete);
@@ -181,6 +187,7 @@
             copyTo.setEnabled(true);
             moveTo.setVisible(moveEnabled);
             moveTo.setEnabled(moveEnabled);
+            rename.setVisible(false);
         }
     }
 
@@ -194,12 +201,17 @@
         }
 
         @Override
-        public void updateActionMenu(Menu menu, int dirType, boolean canDelete) {
+        public void updateActionMenu(Menu menu, int dirType, boolean canDelete,
+                boolean canRename) {
 
             MenuItem copy = menu.findItem(R.id.menu_copy_to_clipboard);
             MenuItem paste = menu.findItem(R.id.menu_paste_from_clipboard);
             copy.setEnabled(dirType != DirectoryFragment.TYPE_RECENT_OPEN);
 
+            MenuItem rename = menu.findItem(R.id.menu_rename);
+            rename.setVisible(true);
+            rename.setEnabled(canRename);
+
             menu.findItem(R.id.menu_share).setVisible(true);
             menu.findItem(R.id.menu_delete).setVisible(canDelete);
 
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java
new file mode 100644
index 0000000..71708c1
--- /dev/null
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2016 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 static com.android.documentsui.Shared.TAG;
+import static com.android.internal.util.Preconditions.checkArgument;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.app.FragmentManager;
+import android.content.ContentProviderClient;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.provider.DocumentsContract;
+import android.support.annotation.Nullable;
+import android.support.design.widget.Snackbar;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.TextView.OnEditorActionListener;
+
+import com.android.documentsui.BaseActivity;
+import com.android.documentsui.DocumentsApplication;
+import com.android.documentsui.model.DocumentInfo;
+import com.android.documentsui.R;
+import com.android.documentsui.Snackbars;
+/**
+ * Dialog to rename file or directory.
+ */
+class RenameDocumentFragment extends DialogFragment {
+    private static final String TAG_RENAME_DOCUMENT = "rename_document";
+    private DocumentInfo mDocument;
+
+    public static void show(FragmentManager fm, DocumentInfo document) {
+        final RenameDocumentFragment dialog = new RenameDocumentFragment();
+        dialog.mDocument = document;
+        dialog.show(fm, TAG_RENAME_DOCUMENT);
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        Context context = getActivity();
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        LayoutInflater dialogInflater = LayoutInflater.from(builder.getContext());
+        View view = dialogInflater.inflate(R.layout.dialog_file_name, null, false);
+
+        final EditText editText = (EditText) view.findViewById(android.R.id.text1);
+        editText.setText(mDocument.displayName);
+
+        builder.setTitle(R.string.menu_rename);
+        builder.setView(view);
+
+        builder.setPositiveButton(
+                android.R.string.ok,
+                new OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        renameDocuments(editText.getText().toString());
+                    }
+                });
+
+        builder.setNegativeButton(android.R.string.cancel, null);
+
+        final AlertDialog dialog = builder.create();
+
+        editText.setOnEditorActionListener(
+                new OnEditorActionListener() {
+                    @Override
+                    public boolean onEditorAction(
+                            TextView view, int actionId, @Nullable KeyEvent event) {
+                        if (event != null
+                                && event.getKeyCode() == KeyEvent.KEYCODE_ENTER
+                                && event.hasNoModifiers()) {
+                            renameDocuments(editText.getText().toString());
+                            dialog.dismiss();
+                            return true;
+                        }
+                        return false;
+                    }
+                });
+
+        return dialog;
+    }
+
+    private void renameDocuments(String newDisplayName) {
+        BaseActivity activity = (BaseActivity) getActivity();
+
+        new RenameDocumentsTask(activity, newDisplayName).execute(mDocument);
+    }
+
+    private class RenameDocumentsTask extends AsyncTask<DocumentInfo, Void, DocumentInfo> {
+        private final BaseActivity mActivity;
+        private final String mNewDisplayName;
+
+        public RenameDocumentsTask(BaseActivity activity, String newDisplayName) {
+            mActivity = activity;
+            mNewDisplayName = newDisplayName;
+        }
+
+        @Override
+        protected void onPreExecute() {
+            mActivity.setPending(true);
+        }
+
+        @Override
+        protected DocumentInfo doInBackground(DocumentInfo... document) {
+            checkArgument(document.length == 1);
+            final ContentResolver resolver = mActivity.getContentResolver();
+            ContentProviderClient client = null;
+
+            try {
+                client = DocumentsApplication.acquireUnstableProviderOrThrow(
+                        resolver, document[0].derivedUri.getAuthority());
+                Uri newUri = DocumentsContract.renameDocument(
+                        client, document[0].derivedUri, mNewDisplayName);
+                return DocumentInfo.fromUri(resolver, newUri);
+            } catch (Exception e) {
+                Log.w(TAG, "Failed to rename file", e);
+                return null;
+            } finally {
+                ContentProviderClient.releaseQuietly(client);
+            }
+        }
+
+        @Override
+        protected void onPostExecute(DocumentInfo result) {
+            if (result == null) {
+                Snackbars.makeSnackbar(mActivity, R.string.rename_error, Snackbar.LENGTH_SHORT)
+                        .show();
+            }
+
+            mActivity.setPending(false);
+        }
+    }
+}
diff --git a/packages/DocumentsUI/src/com/android/documentsui/model/DocumentInfo.java b/packages/DocumentsUI/src/com/android/documentsui/model/DocumentInfo.java
index 83df18c..4b5499a 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/model/DocumentInfo.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/model/DocumentInfo.java
@@ -239,6 +239,10 @@
         return (flags & Document.FLAG_SUPPORTS_DELETE) != 0;
     }
 
+    public boolean isRenameSupported() {
+        return (flags & Document.FLAG_SUPPORTS_RENAME) != 0;
+    }
+
     public boolean isGridTitlesHidden() {
         return (flags & Document.FLAG_DIR_HIDE_GRID_TITLES) != 0;
     }
diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/StubProvider.java b/packages/DocumentsUI/tests/src/com/android/documentsui/StubProvider.java
index a47d350..cc48786 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/StubProvider.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/StubProvider.java
@@ -660,7 +660,7 @@
             this.documentId = getDocumentIdForFile(file);
             this.mimeType = Document.MIME_TYPE_DIR;
             this.streamTypes = new ArrayList<String>();
-            this.flags = Document.FLAG_DIR_SUPPORTS_CREATE;
+            this.flags = Document.FLAG_DIR_SUPPORTS_CREATE | Document.FLAG_SUPPORTS_RENAME;
             this.parentId = null;
             this.rootInfo = rootInfo;
         }
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
index 409f6a7..c7d17dc 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
@@ -18,6 +18,7 @@
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.admin.DevicePolicyManager;
+import android.auditing.SecurityLog;
 import android.content.Context;
 import android.os.UserHandle;
 import android.util.AttributeSet;
@@ -423,6 +424,11 @@
         }
 
         public void reportUnlockAttempt(int userId, boolean success, int timeoutMs) {
+            if (SecurityLog.isLoggingEnabled()) {
+                SecurityLog.writeEvent(SecurityLog.TAG_DEVICE_UNLOCK_ATTEMPT,
+                        (success ? 1 : 0),
+                        mCurrentSecuritySelection.name());
+            }
             KeyguardUpdateMonitor monitor = KeyguardUpdateMonitor.getInstance(mContext);
             if (success) {
                 monitor.clearFailedUnlockAttempts();
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
index 9a00b4b..704de97 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
@@ -24,6 +24,7 @@
 import android.app.SearchManager;
 import android.app.StatusBarManager;
 import android.app.trust.TrustManager;
+import android.auditing.SecurityLog;
 import android.content.BroadcastReceiver;
 import android.content.ContentResolver;
 import android.content.Context;
@@ -1352,6 +1353,11 @@
      * @see #KEYGUARD_DONE
      */
     private void handleKeyguardDone(boolean authenticated) {
+        if (SecurityLog.isLoggingEnabled()
+                && mLockPatternUtils.isSecure(KeyguardUpdateMonitor.getCurrentUser())) {
+            SecurityLog.writeEvent(SecurityLog.TAG_DEVICE_UNLOCK_ATTEMPT,
+                    (authenticated ? 1 : 0), "Unknown");
+        }
         if (DEBUG) Log.d(TAG, "handleKeyguardDone");
         synchronized (this) {
             resetKeyguardDonePendingLocked();
@@ -1463,6 +1469,10 @@
      * @see #SHOW
      */
     private void handleShow(Bundle options) {
+        if (SecurityLog.isLoggingEnabled()
+                && mLockPatternUtils.isSecure(KeyguardUpdateMonitor.getCurrentUser())) {
+            SecurityLog.writeEvent(SecurityLog.TAG_DEVICE_LOCKED, "");
+        }
         synchronized (KeyguardViewMediator.this) {
             if (!mSystemReady) {
                 if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready.");
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index adb11a4..8c2090e 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -20899,7 +20899,9 @@
     }
 
     public boolean isUserStopped(int userId) {
-        return mUserController.getStartedUserStateLocked(userId) == null;
+        synchronized (this) {
+            return mUserController.getStartedUserStateLocked(userId) == null;
+        }
     }
 
     ActivityInfo getActivityInfoForUser(ActivityInfo aInfo, int userId) {
diff --git a/services/core/java/com/android/server/am/RecentTasks.java b/services/core/java/com/android/server/am/RecentTasks.java
index a3c26cb..05702af 100644
--- a/services/core/java/com/android/server/am/RecentTasks.java
+++ b/services/core/java/com/android/server/am/RecentTasks.java
@@ -77,8 +77,8 @@
     }
 
     /**
-     * Loads the persistent recentTasks for {@code userId} into {@link #mRecentTasks} from
-     * persistent storage. Does nothing if they are already loaded.
+     * Loads the persistent recentTasks for {@code userId} into this list from persistent storage.
+     * Does nothing if they are already loaded.
      *
      * @param userId the user Id
      */
diff --git a/services/core/java/com/android/server/notification/ManagedServices.java b/services/core/java/com/android/server/notification/ManagedServices.java
index f360dc2..f5da52e 100644
--- a/services/core/java/com/android/server/notification/ManagedServices.java
+++ b/services/core/java/com/android/server/notification/ManagedServices.java
@@ -297,7 +297,6 @@
         checkType(guest.service);
         if (registerServiceImpl(guest) != null) {
             onServiceAdded(guest);
-            onServiceAdded(guest);
         }
     }
 
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index b1fe68c..2ee74db 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -223,6 +223,8 @@
     private WorkerHandler mHandler;
     private final HandlerThread mRankingThread = new HandlerThread("ranker",
             Process.THREAD_PRIORITY_BACKGROUND);
+    private final HandlerThread mAssistantThread = new HandlerThread("assistant",
+            Process.THREAD_PRIORITY_BACKGROUND);
 
     private Light mNotificationLight;
     Light mAttentionLight;
@@ -295,6 +297,7 @@
     private static final int MY_UID = Process.myUid();
     private static final int MY_PID = Process.myPid();
     private RankingHandler mRankingHandler;
+    private Handler mAssistantHandler;
 
     private static class Archive {
         final int mBufferSize;
@@ -878,6 +881,7 @@
 
         mHandler = new WorkerHandler();
         mRankingThread.start();
+        mAssistantThread.start();
         String[] extractorNames;
         try {
             extractorNames = resources.getStringArray(R.array.config_notificationSignalExtractors);
@@ -886,6 +890,7 @@
         }
         mUsageStats = new NotificationUsageStats(getContext());
         mRankingHandler = new RankingHandlerWorker(mRankingThread.getLooper());
+        mAssistantHandler = new Handler(mAssistantThread.getLooper());
         mRankingHelper = new RankingHelper(getContext(),
                 mRankingHandler,
                 mUsageStats,
@@ -1957,7 +1962,7 @@
 
         @Override
         public void setImportanceFromAssistant(INotificationListener token, String key,
-                int importance, CharSequence explanation) {
+                int importance, CharSequence explanation) throws RemoteException {
             final long identity = Binder.clearCallingIdentity();
             try {
                 synchronized (mNotificationList) {
@@ -2249,115 +2254,145 @@
                     + " id=" + id + " notification=" + notification);
         }
 
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
+        // Sanitize inputs
+        notification.priority = clamp(notification.priority, Notification.PRIORITY_MIN,
+                Notification.PRIORITY_MAX);
 
-                synchronized (mNotificationList) {
-
-                    // Sanitize inputs
-                    notification.priority = clamp(notification.priority, Notification.PRIORITY_MIN,
-                            Notification.PRIORITY_MAX);
-
-                    // setup local book-keeping
-                    final StatusBarNotification n = new StatusBarNotification(
-                            pkg, opPkg, id, tag, callingUid, callingPid, 0, notification,
-                            user);
-                    NotificationRecord r = new NotificationRecord(getContext(), n);
-                    NotificationRecord old = mNotificationsByKey.get(n.getKey());
-                    if (old != null) {
-                        // Retain ranking information from previous record
-                        r.copyRankingInformation(old);
-                    }
-
-                    // Handle grouped notifications and bail out early if we
-                    // can to avoid extracting signals.
-                    handleGroupedNotificationLocked(r, old, callingUid, callingPid);
-                    boolean ignoreNotification =
-                            removeUnusedGroupedNotificationLocked(r, old, callingUid, callingPid);
-
-                    // This conditional is a dirty hack to limit the logging done on
-                    //     behalf of the download manager without affecting other apps.
-                    if (!pkg.equals("com.android.providers.downloads")
-                            || Log.isLoggable("DownloadManager", Log.VERBOSE)) {
-                        int enqueueStatus = EVENTLOG_ENQUEUE_STATUS_NEW;
-                        if (ignoreNotification) {
-                            enqueueStatus = EVENTLOG_ENQUEUE_STATUS_IGNORED;
-                        } else if (old != null) {
-                            enqueueStatus = EVENTLOG_ENQUEUE_STATUS_UPDATE;
-                        }
-                        EventLogTags.writeNotificationEnqueue(callingUid, callingPid,
-                                pkg, id, tag, userId, notification.toString(),
-                                enqueueStatus);
-                    }
-
-                    if (ignoreNotification) {
-                        return;
-                    }
-
-                    mRankingHelper.extractSignals(r);
-                    savePolicyFile();
-
-                    // blocked apps/topics
-                    if (r.getImportance() == NotificationListenerService.Ranking.IMPORTANCE_NONE
-                            || !noteNotificationOp(pkg, callingUid)) {
-                        if (!isSystemNotification) {
-                            Slog.e(TAG, "Suppressing notification from package " + pkg
-                                    + " by user request.");
-                            mUsageStats.registerBlocked(r);
-                            return;
-                        }
-                    }
-
-                    int index = indexOfNotificationLocked(n.getKey());
-                    if (index < 0) {
-                        mNotificationList.add(r);
-                        mUsageStats.registerPostedByApp(r);
-                    } else {
-                        old = mNotificationList.get(index);
-                        mNotificationList.set(index, r);
-                        mUsageStats.registerUpdatedByApp(r, old);
-                        // Make sure we don't lose the foreground service state.
-                        notification.flags |=
-                                old.getNotification().flags & Notification.FLAG_FOREGROUND_SERVICE;
-                        r.isUpdate = true;
-                    }
-
-                    mNotificationsByKey.put(n.getKey(), r);
-
-                    // Ensure if this is a foreground service that the proper additional
-                    // flags are set.
-                    if ((notification.flags & Notification.FLAG_FOREGROUND_SERVICE) != 0) {
-                        notification.flags |= Notification.FLAG_ONGOING_EVENT
-                                | Notification.FLAG_NO_CLEAR;
-                    }
-
-                    applyZenModeLocked(r);
-                    mRankingHelper.sort(mNotificationList);
-
-                    if (notification.getSmallIcon() != null) {
-                        StatusBarNotification oldSbn = (old != null) ? old.sbn : null;
-                        mListeners.notifyPostedLocked(n, oldSbn);
-                    } else {
-                        Slog.e(TAG, "Not posting notification without small icon: " + notification);
-                        if (old != null && !old.isCanceled) {
-                            mListeners.notifyRemovedLocked(n);
-                        }
-                        // ATTENTION: in a future release we will bail out here
-                        // so that we do not play sounds, show lights, etc. for invalid
-                        // notifications
-                        Slog.e(TAG, "WARNING: In a future release this will crash the app: "
-                                + n.getPackageName());
-                    }
-
-                    buzzBeepBlinkLocked(r);
-                }
-            }
-        });
+        // setup local book-keeping
+        final StatusBarNotification n = new StatusBarNotification(
+                pkg, opPkg, id, tag, callingUid, callingPid, 0, notification,
+                user);
+        final NotificationRecord r = new NotificationRecord(getContext(), n);
+        mHandler.post(new EnqueueNotificationRunnable(userId, r));
 
         idOut[0] = id;
     }
 
+    private class EnqueueNotificationRunnable implements Runnable {
+        private final NotificationRecord r;
+        private final int userId;
+
+        EnqueueNotificationRunnable(int userId, NotificationRecord r) {
+            this.userId = userId;
+            this.r = r;
+        };
+
+        @Override
+        public void run() {
+
+            synchronized (mNotificationList) {
+                final StatusBarNotification n = r.sbn;
+                Slog.d(TAG, "EnqueueNotificationRunnable.run for: " + n.getKey());
+                NotificationRecord old = mNotificationsByKey.get(n.getKey());
+                if (old != null) {
+                    // Retain ranking information from previous record
+                    r.copyRankingInformation(old);
+                }
+
+                final int callingUid = n.getUid();
+                final int callingPid = n.getInitialPid();
+                final Notification notification = n.getNotification();
+                final String pkg = n.getPackageName();
+                final int id = n.getId();
+                final String tag = n.getTag();
+                final boolean isSystemNotification = isUidSystem(callingUid) ||
+                        ("android".equals(pkg));
+
+                // Handle grouped notifications and bail out early if we
+                // can to avoid extracting signals.
+                handleGroupedNotificationLocked(r, old, callingUid, callingPid);
+                boolean ignoreNotification =
+                        removeUnusedGroupedNotificationLocked(r, old, callingUid, callingPid);
+                Slog.d(TAG, "ignoreNotification is " + ignoreNotification);
+
+                // This conditional is a dirty hack to limit the logging done on
+                //     behalf of the download manager without affecting other apps.
+                if (!pkg.equals("com.android.providers.downloads")
+                        || Log.isLoggable("DownloadManager", Log.VERBOSE)) {
+                    int enqueueStatus = EVENTLOG_ENQUEUE_STATUS_NEW;
+                    if (ignoreNotification) {
+                        enqueueStatus = EVENTLOG_ENQUEUE_STATUS_IGNORED;
+                    } else if (old != null) {
+                        enqueueStatus = EVENTLOG_ENQUEUE_STATUS_UPDATE;
+                    }
+                    EventLogTags.writeNotificationEnqueue(callingUid, callingPid,
+                            pkg, id, tag, userId, notification.toString(),
+                            enqueueStatus);
+                }
+
+                if (ignoreNotification) {
+                    return;
+                }
+
+                mRankingHelper.extractSignals(r);
+
+                // why is this here?
+                savePolicyFile();
+
+                // blocked apps/topics
+                if (r.getImportance() == NotificationListenerService.Ranking.IMPORTANCE_NONE
+                        || !noteNotificationOp(pkg, callingUid)) {
+                    if (!isSystemNotification) {
+                        Slog.e(TAG, "Suppressing notification from package " + pkg
+                                + " by user request.");
+                        mUsageStats.registerBlocked(r);
+                        return;
+                    }
+                }
+
+                // tell the assistant about the notification
+                if (mAssistant.isEnabled()) {
+                    mAssistant.onNotificationEnqueued(r);
+                    // TODO delay the code below here for 100ms or until there is an answer
+                }
+
+
+                int index = indexOfNotificationLocked(n.getKey());
+                if (index < 0) {
+                    mNotificationList.add(r);
+                    mUsageStats.registerPostedByApp(r);
+                } else {
+                    old = mNotificationList.get(index);
+                    mNotificationList.set(index, r);
+                    mUsageStats.registerUpdatedByApp(r, old);
+                    // Make sure we don't lose the foreground service state.
+                    notification.flags |=
+                            old.getNotification().flags & Notification.FLAG_FOREGROUND_SERVICE;
+                    r.isUpdate = true;
+                }
+
+                mNotificationsByKey.put(n.getKey(), r);
+
+                // Ensure if this is a foreground service that the proper additional
+                // flags are set.
+                if ((notification.flags & Notification.FLAG_FOREGROUND_SERVICE) != 0) {
+                    notification.flags |= Notification.FLAG_ONGOING_EVENT
+                            | Notification.FLAG_NO_CLEAR;
+                }
+
+                applyZenModeLocked(r);
+                mRankingHelper.sort(mNotificationList);
+
+                if (notification.getSmallIcon() != null) {
+                    StatusBarNotification oldSbn = (old != null) ? old.sbn : null;
+                    mListeners.notifyPostedLocked(n, oldSbn);
+                } else {
+                    Slog.e(TAG, "Not posting notification without small icon: " + notification);
+                    if (old != null && !old.isCanceled) {
+                        mListeners.notifyRemovedLocked(n);
+                    }
+                    // ATTENTION: in a future release we will bail out here
+                    // so that we do not play sounds, show lights, etc. for invalid
+                    // notifications
+                    Slog.e(TAG, "WARNING: In a future release this will crash the app: "
+                            + n.getPackageName());
+                }
+
+                buzzBeepBlinkLocked(r);
+            }
+        }
+    }
+
     /**
      * Ensures that grouped notification receive their special treatment.
      *
@@ -3391,6 +3426,30 @@
         return true;
     }
 
+    private class TrimCache {
+        StatusBarNotification heavy;
+        StatusBarNotification sbnClone;
+        StatusBarNotification sbnCloneLight;
+
+        TrimCache(StatusBarNotification sbn) {
+            heavy = sbn;
+        }
+
+        StatusBarNotification ForListener(ManagedServiceInfo info) {
+            if (mListeners.getOnNotificationPostedTrim(info) == TRIM_LIGHT) {
+                if (sbnCloneLight == null) {
+                    sbnCloneLight = heavy.cloneLight();
+                }
+                return sbnCloneLight;
+            } else {
+                if (sbnClone == null) {
+                    sbnClone = heavy.clone();
+                }
+                return sbnClone;
+            }
+        }
+    }
+
     public class NotificationAssistant extends ManagedServices {
 
         public NotificationAssistant() {
@@ -3428,6 +3487,46 @@
         protected void onServiceRemovedLocked(ManagedServiceInfo removed) {
             mListeners.unregisterService(removed.service, removed.userid);
         }
+
+        public void onNotificationEnqueued(final NotificationRecord r) {
+            final StatusBarNotification sbn = r.sbn;
+            TrimCache trimCache = new TrimCache(sbn);
+
+            // mServices is the list inside ManagedServices of all the assistants,
+            // There should be only one, but it's a list, so while we enforce
+            // singularity elsewhere, we keep it general here, to avoid surprises.
+            for (final ManagedServiceInfo info : NotificationAssistant.this.mServices) {
+                boolean sbnVisible = isVisibleToListener(sbn, info);
+                if (!sbnVisible) {
+                    continue;
+                }
+
+                final int importance = r.getImportance();
+                final boolean fromUser = r.isImportanceFromUser();
+                final StatusBarNotification sbnToPost =  trimCache.ForListener(info);
+                mAssistantHandler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        notifyEnqueued(info, sbnToPost, importance, fromUser);
+                    }
+                });
+            }
+        }
+
+        private void notifyEnqueued(final ManagedServiceInfo info,
+                final StatusBarNotification sbn, int importance, boolean fromUser) {
+            final INotificationListener assistant = (INotificationListener) info.service;
+            StatusBarNotificationHolder sbnHolder = new StatusBarNotificationHolder(sbn);
+            try {
+                assistant.onNotificationEnqueued(sbnHolder, importance, fromUser);
+            } catch (RemoteException ex) {
+                Log.e(TAG, "unable to notify assistant (enqueued): " + assistant, ex);
+            }
+        }
+
+        public boolean isEnabled() {
+            return !mServices.isEmpty();
+        }
     }
 
     public class NotificationListeners extends ManagedServices {
@@ -3476,7 +3575,6 @@
             }
         }
 
-
         @Override
         protected void onServiceRemovedLocked(ManagedServiceInfo removed) {
             if (mListenersDisablingEffects.remove(removed)) {
@@ -3508,8 +3606,7 @@
          */
         public void notifyPostedLocked(StatusBarNotification sbn, StatusBarNotification oldSbn) {
             // Lazily initialized snapshots of the notification.
-            StatusBarNotification sbnClone = null;
-            StatusBarNotification sbnCloneLight = null;
+            TrimCache trimCache = new TrimCache(sbn);
 
             for (final ManagedServiceInfo info : mServices) {
                 boolean sbnVisible = isVisibleToListener(sbn, info);
@@ -3532,16 +3629,7 @@
                     continue;
                 }
 
-                final int trim = mListeners.getOnNotificationPostedTrim(info);
-
-                if (trim == TRIM_LIGHT && sbnCloneLight == null) {
-                    sbnCloneLight = sbn.cloneLight();
-                } else if (trim == TRIM_FULL && sbnClone == null) {
-                    sbnClone = sbn.clone();
-                }
-                final StatusBarNotification sbnToPost =
-                        (trim == TRIM_FULL) ? sbnClone : sbnCloneLight;
-
+                final StatusBarNotification sbnToPost =  trimCache.ForListener(info);
                 mHandler.post(new Runnable() {
                     @Override
                     public void run() {
diff --git a/services/core/java/com/android/server/notification/NotificationRecord.java b/services/core/java/com/android/server/notification/NotificationRecord.java
index 0be2edd..490e890 100644
--- a/services/core/java/com/android/server/notification/NotificationRecord.java
+++ b/services/core/java/com/android/server/notification/NotificationRecord.java
@@ -15,6 +15,7 @@
  */
 package com.android.server.notification;
 
+import static android.service.notification.NotificationListenerService.Ranking.IMPORTANCE_UNSPECIFIED;
 import static android.service.notification.NotificationListenerService.Ranking.IMPORTANCE_DEFAULT;
 import static android.service.notification.NotificationListenerService.Ranking.IMPORTANCE_HIGH;
 import static android.service.notification.NotificationListenerService.Ranking.IMPORTANCE_LOW;
@@ -88,8 +89,8 @@
     private int mAuthoritativeRank;
     private String mGlobalSortKey;
     private int mPackageVisibility;
-    private int mTopicImportance = NotificationListenerService.Ranking.IMPORTANCE_UNSPECIFIED;
-    private int mImportance = NotificationListenerService.Ranking.IMPORTANCE_UNSPECIFIED;
+    private int mTopicImportance = IMPORTANCE_UNSPECIFIED;
+    private int mImportance = IMPORTANCE_UNSPECIFIED;
     private CharSequence mImportanceExplanation = null;
 
     private int mSuppressedVisualEffects = 0;
@@ -510,4 +511,8 @@
     public String getGroupKey() {
         return sbn.getGroupKey();
     }
+
+    public boolean isImportanceFromUser() {
+        return mImportance == mTopicImportance;
+    }
 }
diff --git a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
index 87d0700..39983dd 100644
--- a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
+++ b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
@@ -92,6 +92,8 @@
 import com.android.internal.R;
 import com.android.server.EventLogTags;
 
+import libcore.io.IoUtils;
+
 public class WallpaperManagerService extends IWallpaperManager.Stub {
     static final String TAG = "WallpaperManagerService";
     static final boolean DEBUG = false;
@@ -170,6 +172,12 @@
     WallpaperData mLastWallpaper;
 
     /**
+     * ID of the current wallpaper, changed every time anything sets a wallpaper.
+     * This is used for external detection of wallpaper update activity.
+     */
+    int mWallpaperId;
+
+    /**
      * Name of the component used to display bitmap wallpapers from either the gallery or
      * built-in wallpapers.
      */
@@ -205,6 +213,11 @@
          */
         ComponentName nextWallpaperComponent;
 
+        /**
+         * The ID of this wallpaper
+         */
+        int wallpaperId;
+
         WallpaperConnection connection;
         long lastDiedTime;
         boolean wallpaperUpdating;
@@ -227,6 +240,13 @@
         }
     }
 
+    int makeWallpaperIdLocked() {
+        do {
+            ++mWallpaperId;
+        } while (mWallpaperId == 0);
+        return mWallpaperId;
+    }
+
     class WallpaperConnection extends IWallpaperConnection.Stub
             implements ServiceConnection {
         final WallpaperInfo mInfo;
@@ -333,7 +353,7 @@
         public ParcelFileDescriptor setWallpaper(String name) {
             synchronized (mLock) {
                 if (mWallpaper.connection == this) {
-                    return updateWallpaperBitmapLocked(name, mWallpaper);
+                    return updateWallpaperBitmapLocked(name, mWallpaper, null);
                 }
                 return null;
             }
@@ -848,18 +868,26 @@
         }
     }
 
-    public ParcelFileDescriptor setWallpaper(String name, String callingPackage) {
+    @Override
+    public ParcelFileDescriptor setWallpaper(String name, String callingPackage, Bundle extras,
+            int which) {
         checkPermission(android.Manifest.permission.SET_WALLPAPER);
+
+        if (which == 0) {
+            return null;
+        }
+
         if (!isWallpaperSupported(callingPackage)) {
             return null;
         }
+
         synchronized (mLock) {
             if (DEBUG) Slog.v(TAG, "setWallpaper");
             int userId = UserHandle.getCallingUserId();
             WallpaperData wallpaper = getWallpaperSafeLocked(userId);
             final long ident = Binder.clearCallingIdentity();
             try {
-                ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name, wallpaper);
+                ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name, wallpaper, extras);
                 if (pfd != null) {
                     wallpaper.imageWallpaperPending = true;
                 }
@@ -870,7 +898,8 @@
         }
     }
 
-    ParcelFileDescriptor updateWallpaperBitmapLocked(String name, WallpaperData wallpaper) {
+    ParcelFileDescriptor updateWallpaperBitmapLocked(String name, WallpaperData wallpaper,
+            Bundle extras) {
         if (name == null) name = "";
         try {
             File dir = getWallpaperDir(wallpaper.userId);
@@ -888,6 +917,14 @@
                 return null;
             }
             wallpaper.name = name;
+            wallpaper.wallpaperId = makeWallpaperIdLocked();
+            if (extras != null) {
+                extras.putInt(WallpaperManager.EXTRA_NEW_WALLPAPER_ID, wallpaper.wallpaperId);
+            }
+            if (DEBUG) {
+                Slog.v(TAG, "updateWallpaperBitmapLocked() : id=" + wallpaper.wallpaperId
+                        + " name=" + name);
+            }
             return fd;
         } catch (FileNotFoundException e) {
             Slog.w(TAG, "Error setting wallpaper", e);
@@ -1156,6 +1193,7 @@
             out.startDocument(null, true);
 
             out.startTag(null, "wp");
+            out.attribute(null, "id", Integer.toString(wallpaper.wallpaperId));
             out.attribute(null, "width", Integer.toString(wallpaper.width));
             out.attribute(null, "height", Integer.toString(wallpaper.height));
             if (wallpaper.padding.left != 0) {
@@ -1184,13 +1222,7 @@
             stream.close();
             journal.commit();
         } catch (IOException e) {
-            try {
-                if (stream != null) {
-                    stream.close();
-                }
-            } catch (IOException ex) {
-                // Ignore
-            }
+            IoUtils.closeQuietly(stream);
             journal.rollback();
         }
     }
@@ -1259,6 +1291,16 @@
                 if (type == XmlPullParser.START_TAG) {
                     String tag = parser.getName();
                     if ("wp".equals(tag)) {
+                        final String idString = parser.getAttributeValue(null, "id");
+                        if (idString != null) {
+                            final int id = wallpaper.wallpaperId = Integer.parseInt(idString);
+                            if (id > mWallpaperId) {
+                                mWallpaperId = id;
+                            }
+                        } else {
+                            wallpaper.wallpaperId = makeWallpaperIdLocked();
+                        }
+
                         wallpaper.width = Integer.parseInt(parser.getAttributeValue(null, "width"));
                         wallpaper.height = Integer.parseInt(parser
                                 .getAttributeValue(null, "height"));
@@ -1301,19 +1343,21 @@
         } catch (IndexOutOfBoundsException e) {
             Slog.w(TAG, "failed parsing " + file + " " + e);
         }
-        try {
-            if (stream != null) {
-                stream.close();
-            }
-        } catch (IOException e) {
-            // Ignore
-        }
+        IoUtils.closeQuietly(stream);
 
         if (!success) {
             wallpaper.width = -1;
             wallpaper.height = -1;
             wallpaper.padding.set(0, 0, 0, 0);
             wallpaper.name = "";
+        } else {
+            if (wallpaper.wallpaperId <= 0) {
+                wallpaper.wallpaperId = makeWallpaperIdLocked();
+                if (DEBUG) {
+                    Slog.w(TAG, "Didn't set wallpaper id in loadSettingsLocked(" + userId
+                            + "); now " + wallpaper.wallpaperId);
+                }
+            }
         }
 
         // We always want to have some reasonable width hint.
@@ -1346,6 +1390,7 @@
         synchronized (mLock) {
             loadSettingsLocked(0);
             wallpaper = mWallpaperMap.get(0);
+            wallpaper.wallpaperId = makeWallpaperIdLocked();    // always bump id at restore
             if (wallpaper.nextWallpaperComponent != null
                     && !wallpaper.nextWallpaperComponent.equals(mImageWallpaper)) {
                 if (!bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false,
@@ -1366,7 +1411,8 @@
                     if (DEBUG) Slog.v(TAG, "settingsRestored: attempting to restore named resource");
                     success = restoreNamedResourceLocked(wallpaper);
                 }
-                if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success);
+                if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success
+                        + " id=" + wallpaper.wallpaperId);
                 if (success) {
                     bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false,
                             wallpaper, null);
@@ -1442,16 +1488,10 @@
                 } catch (IOException e) {
                     Slog.e(TAG, "IOException while restoring wallpaper ", e);
                 } finally {
-                    if (res != null) {
-                        try {
-                            res.close();
-                        } catch (IOException ex) {}
-                    }
+                    IoUtils.closeQuietly(res);
                     if (fos != null) {
                         FileUtils.sync(fos);
-                        try {
-                            fos.close();
-                        } catch (IOException ex) {}
+                        IoUtils.closeQuietly(fos);
                     }
                 }
             }
@@ -1474,7 +1514,8 @@
             pw.println("Current Wallpaper Service state:");
             for (int i = 0; i < mWallpaperMap.size(); i++) {
                 WallpaperData wallpaper = mWallpaperMap.valueAt(i);
-                pw.println(" User " + wallpaper.userId + ":");
+                pw.print(" User "); pw.print(wallpaper.userId);
+                pw.print(": id="); pw.println(wallpaper.wallpaperId);
                 pw.print("  mWidth=");
                     pw.print(wallpaper.width);
                     pw.print(" mHeight=");
diff --git a/services/usage/java/com/android/server/usage/UsageStatsService.java b/services/usage/java/com/android/server/usage/UsageStatsService.java
index 4253cd4..f2949bf4 100644
--- a/services/usage/java/com/android/server/usage/UsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UsageStatsService.java
@@ -558,6 +558,7 @@
             }
             mRealTimeSnapshot = actualRealtime;
             mSystemTimeSnapshot = actualSystemTime;
+            postCheckIdleStates(UserHandle.USER_ALL);
         }
         return actualSystemTime;
     }
@@ -602,7 +603,7 @@
                     || event.mEventType == Event.SYSTEM_INTERACTION
                     || event.mEventType == Event.USER_INTERACTION)) {
                 if (previouslyIdle) {
-                    // Slog.d(TAG, "Informing listeners of out-of-idle " + event.mPackage);
+                    //Slog.d(TAG, "Informing listeners of out-of-idle " + event.mPackage);
                     mHandler.sendMessage(mHandler.obtainMessage(MSG_INFORM_LISTENERS, userId,
                             /* idle = */ 0, event.mPackage));
                     notifyBatteryStats(event.mPackage, userId, false);
diff --git a/tools/aapt2/link/Link.cpp b/tools/aapt2/link/Link.cpp
index 364a55b..f3a9ea3 100644
--- a/tools/aapt2/link/Link.cpp
+++ b/tools/aapt2/link/Link.cpp
@@ -56,6 +56,7 @@
     Maybe<std::string> generateProguardRulesPath;
     bool noAutoVersion = false;
     bool staticLib = false;
+    bool generateNonFinalIds = false;
     bool verbose = false;
     bool outputToDirectory = false;
     bool autoAddOverlay = false;
@@ -835,7 +836,7 @@
             JavaClassGeneratorOptions options;
             options.types = JavaClassGeneratorOptions::SymbolTypes::kAll;
 
-            if (mOptions.staticLib) {
+            if (mOptions.staticLib || mOptions.generateNonFinalIds) {
                 options.useFinal = false;
             }
 
@@ -933,6 +934,9 @@
             .optionalFlag("--version-name", "Version name to inject into the AndroidManifest.xml "
                           "if none is present", &versionName)
             .optionalSwitch("--static-lib", "Generate a static Android library", &options.staticLib)
+            .optionalSwitch("--non-final-ids", "Generates R.java without the final modifier.\n"
+                            "This is implied when --static-lib is specified.",
+                            &options.generateNonFinalIds)
             .optionalFlag("--private-symbols", "Package name to use when generating R.java for "
                           "private symbols.\n"
                           "If not specified, public and private symbols will use the application's "