Format as public/private; follow refactoring.

Offer to format an empty disk as public/private.

Bug: 19993667
Change-Id: I69fafaed524f3ef5e65d04a9e3a94789fcfc3087
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 435236a..0446178 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1490,7 +1490,7 @@
         </activity>
 
         <activity
-                android:name="Settings$StorageVolumeSettingsActivity"
+                android:name="Settings$PublicVolumeSettingsActivity"
                 android:label="@string/storage_settings_title"
                 android:taskAffinity="com.android.settings"
                 android:parentActivityName="Settings$StorageSettingsActivity">
@@ -1508,6 +1508,19 @@
                 android:resource="@id/storage_settings" />
         </activity>
 
+        <activity
+                android:name="Settings$PrivateVolumeForgetActivity"
+                android:label="@string/storage_settings_title"
+                android:taskAffinity="com.android.settings"
+                android:parentActivityName="Settings$StorageSettingsActivity"
+                android:exported="true"
+                android:permission="android.permission.MOUNT_UNMOUNT_FILESYSTEMS">
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.deviceinfo.PrivateVolumeForget" />
+            <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
+                android:resource="@id/storage_settings" />
+        </activity>
+
         <!-- Exported for SystemUI to launch into -->
         <activity android:name=".deviceinfo.StorageWizardInit"
                 android:theme="@style/SuwThemeMaterial.Light"