Merge "Update doc of ACTION_PROVISION_MANAGED_DEVICE" into mnc-dev
diff --git a/api/current.txt b/api/current.txt
index d5685a6..3e0a1b3 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -4000,6 +4000,7 @@
   public deprecated class AssistContent {
     ctor public AssistContent();
     method public android.content.ClipData getClipData();
+    method public android.os.Bundle getExtras();
     method public android.net.Uri getWebUri();
     method public boolean isAppProvidedIntent();
     method public void setClipData(android.content.ClipData);
@@ -4058,6 +4059,7 @@
   }
 
   public static class AssistStructure.WindowNode {
+    method public int getDisplayId();
     method public int getHeight();
     method public int getLeft();
     method public android.app.AssistStructure.ViewNode getRootViewNode();
@@ -8457,8 +8459,6 @@
     field public static final int NO_MATCH_CATEGORY = -4; // 0xfffffffc
     field public static final int NO_MATCH_DATA = -2; // 0xfffffffe
     field public static final int NO_MATCH_TYPE = -1; // 0xffffffff
-    field public static final java.lang.String SCHEME_HTTP = "http";
-    field public static final java.lang.String SCHEME_HTTPS = "https";
     field public static final int SYSTEM_HIGH_PRIORITY = 1000; // 0x3e8
     field public static final int SYSTEM_LOW_PRIORITY = -1000; // 0xfffffc18
   }
@@ -37054,6 +37054,7 @@
 
   public abstract class ViewStructure {
     ctor public ViewStructure();
+    method public abstract int addChildCount(int);
     method public abstract void asyncCommit();
     method public abstract android.view.ViewAssistStructure asyncNewChild(int);
     method public abstract int getChildCount();
diff --git a/api/system-current.txt b/api/system-current.txt
index fbf8d1d..a61b9fb53 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -4096,6 +4096,7 @@
   public deprecated class AssistContent {
     ctor public AssistContent();
     method public android.content.ClipData getClipData();
+    method public android.os.Bundle getExtras();
     method public android.net.Uri getWebUri();
     method public boolean isAppProvidedIntent();
     method public void setClipData(android.content.ClipData);
@@ -4154,6 +4155,7 @@
   }
 
   public static class AssistStructure.WindowNode {
+    method public int getDisplayId();
     method public int getHeight();
     method public int getLeft();
     method public android.app.AssistStructure.ViewNode getRootViewNode();
@@ -8689,8 +8691,6 @@
     field public static final int NO_MATCH_CATEGORY = -4; // 0xfffffffc
     field public static final int NO_MATCH_DATA = -2; // 0xfffffffe
     field public static final int NO_MATCH_TYPE = -1; // 0xffffffff
-    field public static final java.lang.String SCHEME_HTTP = "http";
-    field public static final java.lang.String SCHEME_HTTPS = "https";
     field public static final int SYSTEM_HIGH_PRIORITY = 1000; // 0x3e8
     field public static final int SYSTEM_LOW_PRIORITY = -1000; // 0xfffffc18
   }
@@ -39331,6 +39331,7 @@
 
   public abstract class ViewStructure {
     ctor public ViewStructure();
+    method public abstract int addChildCount(int);
     method public abstract void asyncCommit();
     method public abstract android.view.ViewAssistStructure asyncNewChild(int);
     method public abstract int getChildCount();
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index da345a6..b65593d 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -2812,7 +2812,9 @@
      * continues running even if the process is killed and restarted.  To remove the watch,
      * use {@link #clearWatchHeapLimit()}.
      *
-     * <p>This API only work if running on a debuggable (userdebug or eng) build.</p>
+     * <p>This API only work if the calling process has been marked as
+     * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable
+     * (userdebug or eng) build.</p>
      *
      * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly
      * handle heap limit reports themselves.</p>
diff --git a/core/java/android/app/AssistContent.java b/core/java/android/app/AssistContent.java
index 173b237..0df9ce5 100644
--- a/core/java/android/app/AssistContent.java
+++ b/core/java/android/app/AssistContent.java
@@ -35,6 +35,7 @@
     private Intent mIntent;
     private ClipData mClipData;
     private Uri mUri;
+    private final Bundle mExtras;
 
     /**
      * @hide
@@ -53,6 +54,7 @@
     }
 
     public AssistContent() {
+        mExtras = new Bundle();
     }
 
     /**
@@ -143,6 +145,13 @@
         return mUri;
     }
 
+    /**
+     * Return Bundle for extra vendor-specific data that can be modified and examined.
+     */
+    public Bundle getExtras() {
+        return mExtras;
+    }
+
     /** @hide */
     public AssistContent(Parcel in) {
         if (in.readInt() != 0) {
@@ -155,6 +164,7 @@
             mUri = Uri.CREATOR.createFromParcel(in);
         }
         mIsAppProvidedIntent = in.readInt() == 1;
+        mExtras = in.readBundle();
     }
 
     /** @hide */
@@ -178,5 +188,6 @@
             dest.writeInt(0);
         }
         dest.writeInt(mIsAppProvidedIntent ? 1 : 0);
+        dest.writeBundle(mExtras);
     }
 }
diff --git a/core/java/android/app/AssistStructure.java b/core/java/android/app/AssistStructure.java
index 0f69817..7f6dae5 100644
--- a/core/java/android/app/AssistStructure.java
+++ b/core/java/android/app/AssistStructure.java
@@ -131,6 +131,7 @@
         final int mWidth;
         final int mHeight;
         final CharSequence mTitle;
+        final int mDisplayId;
         final ViewNode mRoot;
 
         WindowNode(AssistStructure assist, ViewRootImpl root) {
@@ -142,6 +143,7 @@
             mWidth = rect.width();
             mHeight = rect.height();
             mTitle = root.getTitle();
+            mDisplayId = root.getDisplayId();
             mRoot = new ViewNode();
             ViewNodeBuilder builder = new ViewNodeBuilder(assist, mRoot, false);
             if ((root.getWindowFlags()&WindowManager.LayoutParams.FLAG_SECURE) != 0) {
@@ -160,6 +162,7 @@
             mWidth = in.readInt();
             mHeight = in.readInt();
             mTitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
+            mDisplayId = in.readInt();
             mRoot = new ViewNode(in, preader);
         }
 
@@ -169,29 +172,58 @@
             out.writeInt(mWidth);
             out.writeInt(mHeight);
             TextUtils.writeToParcel(mTitle, out, 0);
+            out.writeInt(mDisplayId);
             mRoot.writeToParcel(out, pwriter);
         }
 
+        /**
+         * Returns the left edge of the window, in pixels, relative to the left
+         * edge of the screen.
+         */
         public int getLeft() {
             return mX;
         }
 
+        /**
+         * Returns the top edge of the window, in pixels, relative to the top
+         * edge of the screen.
+         */
         public int getTop() {
             return mY;
         }
 
+        /**
+         * Returns the total width of the window in pixels.
+         */
         public int getWidth() {
             return mWidth;
         }
 
+        /**
+         * Returns the total height of the window in pixels.
+         */
         public int getHeight() {
             return mHeight;
         }
 
+        /**
+         * Returns the title associated with the window, if it has one.
+         */
         public CharSequence getTitle() {
             return mTitle;
         }
 
+        /**
+         * Returns the ID of the display this window is on, for use with
+         * {@link android.hardware.display.DisplayManager#getDisplay DisplayManager.getDisplay()}.
+         */
+        public int getDisplayId() {
+            return mDisplayId;
+        }
+
+        /**
+         * Returns the {@link ViewNode} containing the root content of the window.
+         */
         public ViewNode getRootViewNode() {
             return mRoot;
         }
@@ -325,146 +357,288 @@
             }
         }
 
+        /**
+         * Returns the ID associated with this view, as per {@link View#getId() View.getId()}.
+         */
         public int getId() {
             return mId;
         }
 
+        /**
+         * If {@link #getId()} is a resource identifier, this is the package name of that
+         * identifier.  See {@link android.view.ViewStructure#setId ViewStructure.setId}
+         * for more information.
+         */
         public String getIdPackage() {
             return mIdPackage;
         }
 
+        /**
+         * If {@link #getId()} is a resource identifier, this is the type name of that
+         * identifier.  See {@link android.view.ViewStructure#setId ViewStructure.setId}
+         * for more information.
+         */
         public String getIdType() {
             return mIdType;
         }
 
+        /**
+         * If {@link #getId()} is a resource identifier, this is the entry name of that
+         * identifier.  See {@link android.view.ViewStructure#setId ViewStructure.setId}
+         * for more information.
+         */
         public String getIdEntry() {
             return mIdEntry;
         }
 
+        /**
+         * Returns the left edge of this view, in pixels, relative to the left edge of its parent.
+         */
         public int getLeft() {
             return mX;
         }
 
+        /**
+         * Returns the top edge of this view, in pixels, relative to the top edge of its parent.
+         */
         public int getTop() {
             return mY;
         }
 
+        /**
+         * Returns the current X scroll offset of this view, as per
+         * {@link android.view.View#getScrollX() View.getScrollX()}.
+         */
         public int getScrollX() {
             return mScrollX;
         }
 
+        /**
+         * Returns the current Y scroll offset of this view, as per
+         * {@link android.view.View#getScrollX() View.getScrollY()}.
+         */
         public int getScrollY() {
             return mScrollY;
         }
 
+        /**
+         * Returns the width of this view, in pixels.
+         */
         public int getWidth() {
             return mWidth;
         }
 
+        /**
+         * Returns the height of this view, in pixels.
+         */
         public int getHeight() {
             return mHeight;
         }
 
+        /**
+         * Returns the visibility mode of this view, as per
+         * {@link android.view.View#getVisibility() View.getVisibility()}.
+         */
         public int getVisibility() {
             return mFlags&ViewNode.FLAGS_VISIBILITY_MASK;
         }
 
+        /**
+         * Returns true if assist data has been blocked starting at this node in the hierarchy.
+         */
         public boolean isAssistBlocked() {
             return (mFlags&ViewNode.FLAGS_ASSIST_BLOCKED) == 0;
         }
 
+        /**
+         * Returns true if this node is in an enabled state.
+         */
         public boolean isEnabled() {
             return (mFlags&ViewNode.FLAGS_DISABLED) == 0;
         }
 
+        /**
+         * Returns true if this node is clickable by the user.
+         */
         public boolean isClickable() {
             return (mFlags&ViewNode.FLAGS_CLICKABLE) != 0;
         }
 
+        /**
+         * Returns true if this node can take input focus.
+         */
         public boolean isFocusable() {
             return (mFlags&ViewNode.FLAGS_FOCUSABLE) != 0;
         }
 
+        /**
+         * Returns true if this node currently had input focus at the time that the
+         * structure was collected.
+         */
         public boolean isFocused() {
             return (mFlags&ViewNode.FLAGS_FOCUSED) != 0;
         }
 
+        /**
+         * Returns true if this node currently had accessibility focus at the time that the
+         * structure was collected.
+         */
         public boolean isAccessibilityFocused() {
             return (mFlags&ViewNode.FLAGS_ACCESSIBILITY_FOCUSED) != 0;
         }
 
+        /**
+         * Returns true if this node represents something that is checkable by the user.
+         */
         public boolean isCheckable() {
             return (mFlags&ViewNode.FLAGS_CHECKABLE) != 0;
         }
 
+        /**
+         * Returns true if this node is currently in a checked state.
+         */
         public boolean isChecked() {
             return (mFlags&ViewNode.FLAGS_CHECKED) != 0;
         }
 
+        /**
+         * Returns true if this node has currently been selected by the user.
+         */
         public boolean isSelected() {
             return (mFlags&ViewNode.FLAGS_SELECTED) != 0;
         }
 
+        /**
+         * Returns true if this node has currently been activated by the user.
+         */
         public boolean isActivated() {
             return (mFlags&ViewNode.FLAGS_ACTIVATED) != 0;
         }
 
+        /**
+         * Returns true if this node is something the user can perform a long click/press on.
+         */
         public boolean isLongClickable() {
             return (mFlags&ViewNode.FLAGS_LONG_CLICKABLE) != 0;
         }
 
+        /**
+         * Returns true if this node is something the user can perform a context click on.
+         */
         public boolean isContextClickable() {
             return (mFlags&ViewNode.FLAGS_CONTEXT_CLICKABLE) != 0;
         }
 
+        /**
+         * Returns the class name of the node's implementation, indicating its behavior.
+         * For example, a button will report "android.widget.Button" meaning it behaves
+         * like a {@link android.widget.Button}.
+         */
         public String getClassName() {
             return mClassName;
         }
 
+        /**
+         * Returns any content description associated with the node, which semantically describes
+         * its purpose for accessibility and other uses.
+         */
         public CharSequence getContentDescription() {
             return mContentDescription;
         }
 
+        /**
+         * Returns any text associated with the node that is displayed to the user, or null
+         * if there is none.
+         */
         public CharSequence getText() {
             return mText != null ? mText.mText : null;
         }
 
+        /**
+         * If {@link #getText()} is non-null, this is where the current selection starts.
+         */
         public int getTextSelectionStart() {
             return mText != null ? mText.mTextSelectionStart : -1;
         }
 
+        /**
+         * If {@link #getText()} is non-null, this is where the current selection starts.
+         * If there is no selection, returns the same value as {@link #getTextSelectionStart()},
+         * indicating the cursor position.
+         */
         public int getTextSelectionEnd() {
             return mText != null ? mText.mTextSelectionEnd : -1;
         }
 
+        /**
+         * If {@link #getText()} is non-null, this is the main text color associated with it.
+         * If there is no text color, {@link #TEXT_COLOR_UNDEFINED} is returned.
+         * Note that the text may also contain style spans that modify the color of specific
+         * parts of the text.
+         */
         public int getTextColor() {
             return mText != null ? mText.mTextColor : TEXT_COLOR_UNDEFINED;
         }
 
+        /**
+         * If {@link #getText()} is non-null, this is the main text background color associated
+         * with it.
+         * If there is no text background color, {@link #TEXT_COLOR_UNDEFINED} is returned.
+         * Note that the text may also contain style spans that modify the color of specific
+         * parts of the text.
+         */
         public int getTextBackgroundColor() {
             return mText != null ? mText.mTextBackgroundColor : TEXT_COLOR_UNDEFINED;
         }
 
+        /**
+         * If {@link #getText()} is non-null, this is the main text size (in pixels) associated
+         * with it.
+         * Note that the text may also contain style spans that modify the size of specific
+         * parts of the text.
+         */
         public float getTextSize() {
             return mText != null ? mText.mTextSize : 0;
         }
 
+        /**
+         * If {@link #getText()} is non-null, this is the main text style associated
+         * with it, containing a bit mask of {@link #TEXT_STYLE_BOLD},
+         * {@link #TEXT_STYLE_BOLD}, {@link #TEXT_STYLE_STRIKE_THRU}, and/or
+         * {@link #TEXT_STYLE_UNDERLINE}.
+         * Note that the text may also contain style spans that modify the style of specific
+         * parts of the text.
+         */
         public int getTextStyle() {
             return mText != null ? mText.mTextStyle : 0;
         }
 
+        /**
+         * Return additional hint text associated with the node; this is typically used with
+         * a node that takes user input, describing to the user what the input means.
+         */
         public String getHint() {
             return mText != null ? mText.mHint : null;
         }
 
+        /**
+         * Return a Bundle containing optional vendor-specific extension information.
+         */
         public Bundle getExtras() {
             return mExtras;
         }
 
+        /**
+         * Return the number of children this node has.
+         */
         public int getChildCount() {
             return mChildren != null ? mChildren.length : 0;
         }
 
+        /**
+         * Return a child of this node, given an index value from 0 to
+         * {@link #getChildCount()}-1.
+         */
         public ViewNode getChildAt(int index) {
             return mChildren[index];
         }
@@ -663,6 +837,19 @@
         }
 
         @Override
+        public int addChildCount(int num) {
+            if (mNode.mChildren == null) {
+                setChildCount(num);
+                return 0;
+            }
+            final int start = mNode.mChildren.length;
+            ViewNode[] newArray = new ViewNode[start + num];
+            System.arraycopy(mNode.mChildren, 0, newArray, 0, start);
+            mNode.mChildren = newArray;
+            return start;
+        }
+
+        @Override
         public int getChildCount() {
             return mNode.mChildren != null ? mNode.mChildren.length : 0;
         }
@@ -801,6 +988,9 @@
         return assistBundle.getParcelable(ASSIST_KEY);
     }
 
+    /**
+     * Return the activity this AssistStructure came from.
+     */
     public ComponentName getActivityComponent() {
         ensureData();
         return mActivityComponent;
diff --git a/core/java/android/app/DownloadManager.java b/core/java/android/app/DownloadManager.java
index 2ed8b0f..5327646 100644
--- a/core/java/android/app/DownloadManager.java
+++ b/core/java/android/app/DownloadManager.java
@@ -418,7 +418,7 @@
         private int mNotificationVisibility = VISIBILITY_VISIBLE;
 
         /**
-         * @param uri the HTTP URI to download.
+         * @param uri the HTTP or HTTPS URI to download.
          */
         public Request(Uri uri) {
             if (uri == null) {
diff --git a/core/java/android/content/ContentProviderClient.java b/core/java/android/content/ContentProviderClient.java
index e15ac94..d12595f 100644
--- a/core/java/android/content/ContentProviderClient.java
+++ b/core/java/android/content/ContentProviderClient.java
@@ -16,6 +16,8 @@
 
 package android.content;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.content.res.AssetFileDescriptor;
 import android.database.Cursor;
 import android.net.Uri;
@@ -30,6 +32,7 @@
 import android.util.Log;
 
 import com.android.internal.annotations.GuardedBy;
+import com.android.internal.util.Preconditions;
 
 import dalvik.system.CloseGuard;
 
@@ -109,14 +112,19 @@
     }
 
     /** See {@link ContentProvider#query ContentProvider.query} */
-    public Cursor query(Uri url, String[] projection, String selection,
-            String[] selectionArgs, String sortOrder) throws RemoteException {
+    public @Nullable Cursor query(@NonNull Uri url, @Nullable String[] projection,
+            @Nullable String selection, @Nullable String[] selectionArgs,
+            @Nullable String sortOrder) throws RemoteException {
         return query(url, projection, selection,  selectionArgs, sortOrder, null);
     }
 
     /** See {@link ContentProvider#query ContentProvider.query} */
-    public Cursor query(Uri url, String[] projection, String selection, String[] selectionArgs,
-            String sortOrder, CancellationSignal cancellationSignal) throws RemoteException {
+    public @Nullable Cursor query(@NonNull Uri url, @Nullable String[] projection,
+            @Nullable String selection, @Nullable String[] selectionArgs,
+            @Nullable String sortOrder, @Nullable CancellationSignal cancellationSignal)
+                    throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+
         beforeRemote();
         try {
             ICancellationSignal remoteCancellationSignal = null;
@@ -138,7 +146,9 @@
     }
 
     /** See {@link ContentProvider#getType ContentProvider.getType} */
-    public String getType(Uri url) throws RemoteException {
+    public @Nullable String getType(@NonNull Uri url) throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+
         beforeRemote();
         try {
             return mContentProvider.getType(url);
@@ -153,7 +163,11 @@
     }
 
     /** See {@link ContentProvider#getStreamTypes ContentProvider.getStreamTypes} */
-    public String[] getStreamTypes(Uri url, String mimeTypeFilter) throws RemoteException {
+    public @Nullable String[] getStreamTypes(@NonNull Uri url, @NonNull String mimeTypeFilter)
+            throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+        Preconditions.checkNotNull(mimeTypeFilter, "mimeTypeFilter");
+
         beforeRemote();
         try {
             return mContentProvider.getStreamTypes(url, mimeTypeFilter);
@@ -168,7 +182,9 @@
     }
 
     /** See {@link ContentProvider#canonicalize} */
-    public final Uri canonicalize(Uri url) throws RemoteException {
+    public final @Nullable Uri canonicalize(@NonNull Uri url) throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+
         beforeRemote();
         try {
             return mContentProvider.canonicalize(mPackageName, url);
@@ -183,7 +199,9 @@
     }
 
     /** See {@link ContentProvider#uncanonicalize} */
-    public final Uri uncanonicalize(Uri url) throws RemoteException {
+    public final @Nullable Uri uncanonicalize(@NonNull Uri url) throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+
         beforeRemote();
         try {
             return mContentProvider.uncanonicalize(mPackageName, url);
@@ -198,7 +216,10 @@
     }
 
     /** See {@link ContentProvider#insert ContentProvider.insert} */
-    public Uri insert(Uri url, ContentValues initialValues) throws RemoteException {
+    public @Nullable Uri insert(@NonNull Uri url, @Nullable ContentValues initialValues)
+            throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+
         beforeRemote();
         try {
             return mContentProvider.insert(mPackageName, url, initialValues);
@@ -213,7 +234,11 @@
     }
 
     /** See {@link ContentProvider#bulkInsert ContentProvider.bulkInsert} */
-    public int bulkInsert(Uri url, ContentValues[] initialValues) throws RemoteException {
+    public int bulkInsert(@NonNull Uri url, @NonNull ContentValues[] initialValues)
+            throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+        Preconditions.checkNotNull(initialValues, "initialValues");
+
         beforeRemote();
         try {
             return mContentProvider.bulkInsert(mPackageName, url, initialValues);
@@ -228,8 +253,10 @@
     }
 
     /** See {@link ContentProvider#delete ContentProvider.delete} */
-    public int delete(Uri url, String selection, String[] selectionArgs)
-            throws RemoteException {
+    public int delete(@NonNull Uri url, @Nullable String selection,
+            @Nullable String[] selectionArgs) throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+
         beforeRemote();
         try {
             return mContentProvider.delete(mPackageName, url, selection, selectionArgs);
@@ -244,8 +271,10 @@
     }
 
     /** See {@link ContentProvider#update ContentProvider.update} */
-    public int update(Uri url, ContentValues values, String selection,
-            String[] selectionArgs) throws RemoteException {
+    public int update(@NonNull Uri url, @Nullable ContentValues values, @Nullable String selection,
+            @Nullable String[] selectionArgs) throws RemoteException {
+        Preconditions.checkNotNull(url, "url");
+
         beforeRemote();
         try {
             return mContentProvider.update(mPackageName, url, values, selection, selectionArgs);
@@ -266,7 +295,7 @@
      * you use the {@link ContentResolver#openFileDescriptor
      * ContentResolver.openFileDescriptor} API instead.
      */
-    public ParcelFileDescriptor openFile(Uri url, String mode)
+    public @Nullable ParcelFileDescriptor openFile(@NonNull Uri url, @NonNull String mode)
             throws RemoteException, FileNotFoundException {
         return openFile(url, mode, null);
     }
@@ -278,8 +307,11 @@
      * you use the {@link ContentResolver#openFileDescriptor
      * ContentResolver.openFileDescriptor} API instead.
      */
-    public ParcelFileDescriptor openFile(Uri url, String mode, CancellationSignal signal)
-            throws RemoteException, FileNotFoundException {
+    public @Nullable ParcelFileDescriptor openFile(@NonNull Uri url, @NonNull String mode,
+            @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException {
+        Preconditions.checkNotNull(url, "url");
+        Preconditions.checkNotNull(mode, "mode");
+
         beforeRemote();
         try {
             ICancellationSignal remoteSignal = null;
@@ -306,7 +338,7 @@
      * you use the {@link ContentResolver#openAssetFileDescriptor
      * ContentResolver.openAssetFileDescriptor} API instead.
      */
-    public AssetFileDescriptor openAssetFile(Uri url, String mode)
+    public @Nullable AssetFileDescriptor openAssetFile(@NonNull Uri url, @NonNull String mode)
             throws RemoteException, FileNotFoundException {
         return openAssetFile(url, mode, null);
     }
@@ -318,8 +350,11 @@
      * you use the {@link ContentResolver#openAssetFileDescriptor
      * ContentResolver.openAssetFileDescriptor} API instead.
      */
-    public AssetFileDescriptor openAssetFile(Uri url, String mode, CancellationSignal signal)
-            throws RemoteException, FileNotFoundException {
+    public @Nullable AssetFileDescriptor openAssetFile(@NonNull Uri url, @NonNull String mode,
+            @Nullable CancellationSignal signal) throws RemoteException, FileNotFoundException {
+        Preconditions.checkNotNull(url, "url");
+        Preconditions.checkNotNull(mode, "mode");
+
         beforeRemote();
         try {
             ICancellationSignal remoteSignal = null;
@@ -340,15 +375,19 @@
     }
 
     /** See {@link ContentProvider#openTypedAssetFile ContentProvider.openTypedAssetFile} */
-    public final AssetFileDescriptor openTypedAssetFileDescriptor(Uri uri,
-            String mimeType, Bundle opts) throws RemoteException, FileNotFoundException {
+    public final @Nullable AssetFileDescriptor openTypedAssetFileDescriptor(@NonNull Uri uri,
+            @NonNull String mimeType, @Nullable Bundle opts)
+                    throws RemoteException, FileNotFoundException {
         return openTypedAssetFileDescriptor(uri, mimeType, opts, null);
     }
 
     /** See {@link ContentProvider#openTypedAssetFile ContentProvider.openTypedAssetFile} */
-    public final AssetFileDescriptor openTypedAssetFileDescriptor(Uri uri,
-            String mimeType, Bundle opts, CancellationSignal signal)
-            throws RemoteException, FileNotFoundException {
+    public final @Nullable AssetFileDescriptor openTypedAssetFileDescriptor(@NonNull Uri uri,
+            @NonNull String mimeType, @Nullable Bundle opts, @Nullable CancellationSignal signal)
+                    throws RemoteException, FileNotFoundException {
+        Preconditions.checkNotNull(uri, "uri");
+        Preconditions.checkNotNull(mimeType, "mimeType");
+
         beforeRemote();
         try {
             ICancellationSignal remoteSignal = null;
@@ -370,8 +409,11 @@
     }
 
     /** See {@link ContentProvider#applyBatch ContentProvider.applyBatch} */
-    public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations)
-            throws RemoteException, OperationApplicationException {
+    public @NonNull ContentProviderResult[] applyBatch(
+            @NonNull ArrayList<ContentProviderOperation> operations)
+                    throws RemoteException, OperationApplicationException {
+        Preconditions.checkNotNull(operations, "operations");
+
         beforeRemote();
         try {
             return mContentProvider.applyBatch(mPackageName, operations);
@@ -386,7 +428,10 @@
     }
 
     /** See {@link ContentProvider#call(String, String, Bundle)} */
-    public Bundle call(String method, String arg, Bundle extras) throws RemoteException {
+    public @Nullable Bundle call(@NonNull String method, @Nullable String arg,
+            @Nullable Bundle extras) throws RemoteException {
+        Preconditions.checkNotNull(method, "method");
+
         beforeRemote();
         try {
             return mContentProvider.call(mPackageName, method, arg, extras);
@@ -436,7 +481,7 @@
      * @return If the associated {@link ContentProvider} is local, returns it.
      * Otherwise returns null.
      */
-    public ContentProvider getLocalContentProvider() {
+    public @Nullable ContentProvider getLocalContentProvider() {
         return ContentProvider.coerceToLocalContentProvider(mContentProvider);
     }
 
diff --git a/core/java/android/content/IntentFilter.java b/core/java/android/content/IntentFilter.java
index 33c0b87..08c5236 100644
--- a/core/java/android/content/IntentFilter.java
+++ b/core/java/android/content/IntentFilter.java
@@ -254,12 +254,14 @@
      * HTTP scheme.
      *
      * @see #addDataScheme(String)
+     * @hide
      */
     public static final String SCHEME_HTTP = "http";
     /**
      * HTTPS scheme.
      *
      * @see #addDataScheme(String)
+     * @hide
      */
     public static final String SCHEME_HTTPS = "https";
 
diff --git a/core/java/android/os/BatteryStats.java b/core/java/android/os/BatteryStats.java
index a6efc58..f76192e 100644
--- a/core/java/android/os/BatteryStats.java
+++ b/core/java/android/os/BatteryStats.java
@@ -1177,8 +1177,13 @@
         public static final int EVENT_ALARM = 0x000e;
         // Record that we have decided we need to collect new stats data.
         public static final int EVENT_COLLECT_EXTERNAL_STATS = 0x000f;
+        // Event for a package becoming inactive due to being unused for a period of time.
+        public static final int EVENT_PACKAGE_INACTIVE = 0x0010;
+        // Event for a package becoming active due to an interaction.
+        public static final int EVENT_PACKAGE_ACTIVE = 0x0011;
+
         // Number of event types.
-        public static final int EVENT_COUNT = 0x0010;
+        public static final int EVENT_COUNT = 0x0012;
         // Mask to extract out only the type part of the event.
         public static final int EVENT_TYPE_MASK = ~(EVENT_FLAG_START|EVENT_FLAG_FINISH);
 
@@ -1835,12 +1840,12 @@
 
     public static final String[] HISTORY_EVENT_NAMES = new String[] {
             "null", "proc", "fg", "top", "sync", "wake_lock_in", "job", "user", "userfg", "conn",
-            "motion", "active", "pkginst", "pkgunin", "alarm", "stats"
+            "motion", "active", "pkginst", "pkgunin", "alarm", "stats", "inactive", "active"
     };
 
     public static final String[] HISTORY_EVENT_CHECKIN_NAMES = new String[] {
             "Enl", "Epr", "Efg", "Etp", "Esy", "Ewl", "Ejb", "Eur", "Euf", "Ecn",
-            "Esm", "Eac", "Epi", "Epu", "Eal", "Est"
+            "Esm", "Eac", "Epi", "Epu", "Eal", "Est", "Eai", "Eaa"
     };
 
     /**
diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
index 8b18f32..7a1aa1e 100644
--- a/core/java/android/os/PowerManager.java
+++ b/core/java/android/os/PowerManager.java
@@ -878,7 +878,10 @@
      * off network access to apps.  You can monitor for changes to this state with
      * {@link #ACTION_DEVICE_IDLE_MODE_CHANGED}.
      *
-     * @return Returns true if currently in low power mode, else false.
+     * @return Returns true if currently in active device idle mode, else false.  This is
+     * when idle mode restrictions are being actively applied; it will return false if the
+     * device is in a long-term idle mode but currently running a maintenance window where
+     * restrictions have been lifted.
      */
     public boolean isDeviceIdleMode() {
         try {
diff --git a/core/java/android/speech/tts/UtteranceProgressListener.java b/core/java/android/speech/tts/UtteranceProgressListener.java
index 9eb22ef..890ea3d 100644
--- a/core/java/android/speech/tts/UtteranceProgressListener.java
+++ b/core/java/android/speech/tts/UtteranceProgressListener.java
@@ -61,16 +61,16 @@
 
     /**
      * Called when an utterance has been stopped while in progress or flushed from the
-     * synthesis queue. This can happen if client calls {@link TextToSpeech#stop()}
-     * or use {@link TextToSpeech#QUEUE_FLUSH} as an argument in
+     * synthesis queue. This can happen if a client calls {@link TextToSpeech#stop()}
+     * or uses {@link TextToSpeech#QUEUE_FLUSH} as an argument with the
      * {@link TextToSpeech#speak} or {@link TextToSpeech#synthesizeToFile} methods.
      *
      * @param utteranceId the utterance ID of the utterance.
-     * @param isStarted If true, then utterance was interrupted while being synthesized
-     *        and it's output is incomplete. If it's false, then utterance was flushed
+     * @param interrupted If true, then the utterance was interrupted while being synthesized
+     *        and its output is incomplete. If false, then the utterance was flushed
      *        before the synthesis started.
      */
-    public void onStop(String utteranceId, boolean isStarted) {
+    public void onStop(String utteranceId, boolean interrupted) {
     }
 
     /**
@@ -99,7 +99,7 @@
             }
 
             @Override
-            public void onStop(String utteranceId, boolean isStarted) {
+            public void onStop(String utteranceId, boolean interrupted) {
                 listener.onUtteranceCompleted(utteranceId);
             }
         };
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index d2ee0e5..0df8ea9 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -17175,21 +17175,6 @@
     }
 
     /**
-     * If the view has a ColorDrawable background, returns the color of that
-     * drawable.
-     *
-     * @return The color of the ColorDrawable background, if set, otherwise 0.
-     * @hide
-     */
-    @ColorInt
-    public int getBackgroundColor() {
-        if (mBackground instanceof ColorDrawable) {
-            return ((ColorDrawable) mBackground).getColor();
-        }
-        return 0;
-    }
-
-    /**
      * Set the background to a given resource. The resource should refer to
      * a Drawable object or 0 to remove the background.
      * @param resid The identifier of the resource.
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index e2f42db..8b57d96 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -663,6 +663,10 @@
         return mWindowAttributes.flags;
     }
 
+    public int getDisplayId() {
+        return mDisplay.getDisplayId();
+    }
+
     public CharSequence getTitle() {
         return mWindowAttributes.getTitle();
     }
diff --git a/core/java/android/view/ViewStructure.java b/core/java/android/view/ViewStructure.java
index 8ceb166..d06cd83 100644
--- a/core/java/android/view/ViewStructure.java
+++ b/core/java/android/view/ViewStructure.java
@@ -201,6 +201,17 @@
     public abstract void setChildCount(int num);
 
     /**
+     * Add to this view's child count.  This increases the current child count by
+     * <var>num</var> children beyond what was last set by {@link #setChildCount}
+     * or {@link #addChildCount}.  The index at which the new child starts in the child
+     * array is returned.
+     *
+     * @param num The number of new children to add.
+     * @return Returns the index in the child array at which the new children start.
+     */
+    public abstract int addChildCount(int num);
+
+    /**
      * Return the child count as set by {@link #setChildCount}.
      */
     public abstract int getChildCount();
diff --git a/core/java/android/widget/Editor.java b/core/java/android/widget/Editor.java
index e43237a..cf6a018 100644
--- a/core/java/android/widget/Editor.java
+++ b/core/java/android/widget/Editor.java
@@ -1162,6 +1162,10 @@
         // We do not hide the span controllers, since they can be added when a new text is
         // inserted into the text view (voice IME).
         hideCursorControllers();
+        // Reset drag accelerator.
+        if (mSelectionModifierCursorController != null) {
+            mSelectionModifierCursorController.resetTouchOffsets();
+        }
         stopTextActionMode();
     }
 
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index 353901c..78b5d5d 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -8790,7 +8790,8 @@
     @Override
     public void onProvideStructure(ViewStructure structure) {
         super.onProvideStructure(structure);
-        final boolean isPassword = hasPasswordTransformationMethod();
+        final boolean isPassword = hasPasswordTransformationMethod()
+                || isPasswordInputType(getInputType());
         if (!isPassword) {
             structure.setText(getText(), getSelectionStart(), getSelectionEnd());
 
@@ -9244,25 +9245,25 @@
     /**
      * If provided, this ActionMode.Callback will be used to create the ActionMode when text
      * insertion is initiated in this View.
-     *
      * The standard implementation populates the menu with a subset of Select All,
      * Paste and Replace actions, depending on what this View supports.
      *
-     * A custom implementation can add new entries in the default menu in its
-     * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The
-     * default actions can also be removed from the menu using
+     * <p>A custom implementation can add new entries in the default menu in its
+     * {@link android.view.ActionMode.Callback#onPrepareActionMode(android.view.ActionMode,
+     * android.view.Menu)} method. The default actions can also be removed from the menu using
      * {@link android.view.Menu#removeItem(int)} and passing {@link android.R.id#selectAll},
-     * {@link android.R.id#paste} or {@link android.R.id#replaceText} ids as parameters.
+     * {@link android.R.id#paste} or {@link android.R.id#replaceText} ids as parameters.</p>
      *
-     * Returning false from
-     * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent
-     * the action mode from being started.
+     * <p>Returning false from
+     * {@link android.view.ActionMode.Callback#onCreateActionMode(android.view.ActionMode,
+     * android.view.Menu)} will prevent the action mode from being started.</p>
      *
-     * Action click events should be handled by the custom implementation of
-     * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}.
+     * <p>Action click events should be handled by the custom implementation of
+     * {@link android.view.ActionMode.Callback#onActionItemClicked(android.view.ActionMode,
+     * android.view.MenuItem)}.</p>
      *
-     * Note that text insertion mode is not started when a TextView receives focus and the
-     * {@link android.R.attr#selectAllOnFocus} flag has been set.
+     * <p>Note that text insertion mode is not started when a TextView receives focus and the
+     * {@link android.R.attr#selectAllOnFocus} flag has been set.</p>
      */
     public void setCustomInsertionActionModeCallback(ActionMode.Callback actionModeCallback) {
         createEditorIfNeeded();
diff --git a/core/res/res/drawable/floating_popup_background.xml b/core/res/res/drawable/floating_popup_background_dark.xml
similarity index 87%
copy from core/res/res/drawable/floating_popup_background.xml
copy to core/res/res/drawable/floating_popup_background_dark.xml
index b6700b3..ded1137 100644
--- a/core/res/res/drawable/floating_popup_background.xml
+++ b/core/res/res/drawable/floating_popup_background_dark.xml
@@ -16,8 +16,8 @@
 */
 -->
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-    <solid android:color="?attr/colorBackgroundFloating" />
+       android:shape="rectangle">
+    <solid android:color="@color/background_floating_material_dark" />
     <corners android:radius="2dp" />
 </shape>
 
diff --git a/core/res/res/drawable/floating_popup_background.xml b/core/res/res/drawable/floating_popup_background_light.xml
similarity index 91%
rename from core/res/res/drawable/floating_popup_background.xml
rename to core/res/res/drawable/floating_popup_background_light.xml
index b6700b3..9c7a886 100644
--- a/core/res/res/drawable/floating_popup_background.xml
+++ b/core/res/res/drawable/floating_popup_background_light.xml
@@ -17,7 +17,7 @@
 -->
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
     android:shape="rectangle">
-    <solid android:color="?attr/colorBackgroundFloating" />
+    <solid android:color="@color/background_floating_material_light" />
     <corners android:radius="2dp" />
 </shape>
 
diff --git a/core/res/res/drawable/ic_ab_back_material_dark.xml b/core/res/res/drawable/ic_ab_back_material_dark.xml
new file mode 100644
index 0000000..7cdd139
--- /dev/null
+++ b/core/res/res/drawable/ic_ab_back_material_dark.xml
@@ -0,0 +1,27 @@
+<?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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0"
+        android:autoMirrored="true"
+        android:tint="@color/secondary_text_material_dark">
+  <path
+      android:pathData="M20,11L7.8,11l5.6,-5.6L12,4l-8,8l8,8l1.4,-1.4L7.8,13L20,13L20,11z"
+      android:fillColor="@color/white"/>
+</vector>
diff --git a/core/res/res/drawable/ic_ab_back_material_light.xml b/core/res/res/drawable/ic_ab_back_material_light.xml
new file mode 100644
index 0000000..65dab81
--- /dev/null
+++ b/core/res/res/drawable/ic_ab_back_material_light.xml
@@ -0,0 +1,27 @@
+<?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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0"
+        android:autoMirrored="true"
+        android:tint="@color/secondary_text_material_light">
+  <path
+      android:pathData="M20,11L7.8,11l5.6,-5.6L12,4l-8,8l8,8l1.4,-1.4L7.8,13L20,13L20,11z"
+      android:fillColor="@color/white"/>
+</vector>
diff --git a/core/res/res/drawable/ic_menu_moreoverflow_material.xml b/core/res/res/drawable/ic_menu_moreoverflow_material.xml
index 502ad69..3f53451 100644
--- a/core/res/res/drawable/ic_menu_moreoverflow_material.xml
+++ b/core/res/res/drawable/ic_menu_moreoverflow_material.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <!--
 Copyright (C) 2014 The Android Open Source Project
 
diff --git a/core/res/res/drawable/ic_menu_moreoverflow_material_dark.xml b/core/res/res/drawable/ic_menu_moreoverflow_material_dark.xml
new file mode 100644
index 0000000..fa350a6
--- /dev/null
+++ b/core/res/res/drawable/ic_menu_moreoverflow_material_dark.xml
@@ -0,0 +1,26 @@
+<?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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0"
+        android:tint="@color/secondary_text_material_dark">
+    <path
+        android:pathData="M12,8c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2c-1.1,0 -2,0.9 -2,2S10.9,8 12,8zM12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2c1.1,0 2,-0.9 2,-2S13.1,10 12,10zM12,16c-1.1,0 -2,0.9 -2,2s0.9,2 2,2c1.1,0 2,-0.9 2,-2S13.1,16 12,16z"
+        android:fillColor="@color/white"/>
+</vector>
diff --git a/core/res/res/drawable/ic_menu_moreoverflow_material_light.xml b/core/res/res/drawable/ic_menu_moreoverflow_material_light.xml
new file mode 100644
index 0000000..7af234f
--- /dev/null
+++ b/core/res/res/drawable/ic_menu_moreoverflow_material_light.xml
@@ -0,0 +1,26 @@
+<?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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0"
+        android:tint="@color/secondary_text_material_light">
+    <path
+        android:pathData="M12,8c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2c-1.1,0 -2,0.9 -2,2S10.9,8 12,8zM12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2c1.1,0 2,-0.9 2,-2S13.1,10 12,10zM12,16c-1.1,0 -2,0.9 -2,2s0.9,2 2,2c1.1,0 2,-0.9 2,-2S13.1,16 12,16z"
+        android:fillColor="@color/white"/>
+</vector>
diff --git a/core/res/res/drawable/item_background_borderless_material_dark.xml b/core/res/res/drawable/item_background_borderless_material_dark.xml
new file mode 100644
index 0000000..685c52a
--- /dev/null
+++ b/core/res/res/drawable/item_background_borderless_material_dark.xml
@@ -0,0 +1,18 @@
+<?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.
+-->
+
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:color="@color/ripple_material_dark" />
diff --git a/core/res/res/drawable/item_background_borderless_material_light.xml b/core/res/res/drawable/item_background_borderless_material_light.xml
new file mode 100644
index 0000000..3ef6674
--- /dev/null
+++ b/core/res/res/drawable/item_background_borderless_material_light.xml
@@ -0,0 +1,19 @@
+<?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
+  -->
+
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:color="@color/ripple_material_light" />
diff --git a/core/res/res/drawable/item_background_material_dark.xml b/core/res/res/drawable/item_background_material_dark.xml
new file mode 100644
index 0000000..06eb531
--- /dev/null
+++ b/core/res/res/drawable/item_background_material_dark.xml
@@ -0,0 +1,22 @@
+<?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.
+-->
+
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:color="@color/ripple_material_dark">
+  <item android:id="@id/mask">
+    <color android:color="@color/white" />
+  </item>
+</ripple>
diff --git a/core/res/res/drawable/item_background_material_light.xml b/core/res/res/drawable/item_background_material_light.xml
new file mode 100644
index 0000000..2f3d157
--- /dev/null
+++ b/core/res/res/drawable/item_background_material_light.xml
@@ -0,0 +1,22 @@
+<?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.
+-->
+
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:color="@color/ripple_material_light">
+  <item android:id="@id/mask">
+    <color android:color="@color/white" />
+  </item>
+</ripple>
diff --git a/core/res/res/layout/floating_popup_close_overflow_button.xml b/core/res/res/layout/floating_popup_close_overflow_button.xml
index 0dbf7f7..4dae1ae 100644
--- a/core/res/res/layout/floating_popup_close_overflow_button.xml
+++ b/core/res/res/layout/floating_popup_close_overflow_button.xml
@@ -20,6 +20,6 @@
     android:layout_height="match_parent"
     android:minWidth="@dimen/floating_toolbar_menu_button_minimum_width"
     android:minHeight="@dimen/floating_toolbar_height"
-    android:src="?android:attr/actionModeCloseDrawable"
+    android:src="?attr/floatingToolbarCloseDrawable"
     android:contentDescription="@string/floating_toolbar_close_overflow_description"
-    android:background="?attr/selectableItemBackgroundBorderless" />
+    android:background="?attr/floatingToolbarItemBackgroundBorderlessDrawable" />
diff --git a/core/res/res/layout/floating_popup_container.xml b/core/res/res/layout/floating_popup_container.xml
index f37aee15..63dae44 100644
--- a/core/res/res/layout/floating_popup_container.xml
+++ b/core/res/res/layout/floating_popup_container.xml
@@ -24,4 +24,4 @@
     android:elevation="2dp"
     android:focusable="true"
     android:focusableInTouchMode="true"
-    android:background="@drawable/floating_popup_background"/>
+    android:background="?attr/floatingToolbarPopupBackgroundDrawable"/>
diff --git a/core/res/res/layout/floating_popup_menu_button.xml b/core/res/res/layout/floating_popup_menu_button.xml
index b549198..1b58ce5 100644
--- a/core/res/res/layout/floating_popup_menu_button.xml
+++ b/core/res/res/layout/floating_popup_menu_button.xml
@@ -30,5 +30,5 @@
     android:fontFamily="sans-serif-medium"
     android:textSize="@dimen/floating_toolbar_text_size"
     android:textAllCaps="true"
-    android:textColor="?attr/colorForeground"
-    android:background="?attr/selectableItemBackground" />
+    android:textColor="?attr/floatingToolbarForegroundColor"
+    android:background="?attr/floatingToolbarItemBackgroundDrawable" />
diff --git a/core/res/res/layout/floating_popup_menu_image_button.xml b/core/res/res/layout/floating_popup_menu_image_button.xml
index 07eb7a3..1ba7848 100644
--- a/core/res/res/layout/floating_popup_menu_image_button.xml
+++ b/core/res/res/layout/floating_popup_menu_image_button.xml
@@ -32,5 +32,5 @@
         android:paddingEnd="@dimen/floating_toolbar_menu_button_side_padding"
         android:paddingBottom="@dimen/floating_toolbar_menu_image_button_vertical_padding"
         android:scaleType="centerInside"
-        android:background="?attr/selectableItemBackground" />
+        android:background="?attr/floatingToolbarItemBackgroundDrawable" />
 </LinearLayout>
diff --git a/core/res/res/layout/floating_popup_open_overflow_button.xml b/core/res/res/layout/floating_popup_open_overflow_button.xml
index 3027565..f6a3e8d 100644
--- a/core/res/res/layout/floating_popup_open_overflow_button.xml
+++ b/core/res/res/layout/floating_popup_open_overflow_button.xml
@@ -24,6 +24,6 @@
     android:paddingTop="0dp"
     android:paddingBottom="0dp"
     android:paddingEnd="4dp"
-    android:src="@drawable/ic_menu_moreoverflow_material"
+    android:src="?attr/floatingToolbarOpenDrawable"
     android:contentDescription="@string/floating_toolbar_open_overflow_description"
-    android:background="?attr/selectableItemBackgroundBorderless" />
+    android:background="?attr/floatingToolbarItemBackgroundBorderlessDrawable" />
diff --git a/core/res/res/layout/floating_popup_overflow_list_item.xml b/core/res/res/layout/floating_popup_overflow_list_item.xml
index 2ff45bb..22f4e68 100644
--- a/core/res/res/layout/floating_popup_overflow_list_item.xml
+++ b/core/res/res/layout/floating_popup_overflow_list_item.xml
@@ -31,6 +31,6 @@
     android:ellipsize="end"
     android:fontFamily="sans-serif-medium"
     android:textSize="@dimen/floating_toolbar_text_size"
-    android:textColor="?attr/colorForeground"
+    android:textColor="?attr/floatingToolbarForegroundColor"
     android:textAllCaps="true" />
 
diff --git a/core/res/res/values/arrays.xml b/core/res/res/values/arrays.xml
index d5c2d19..a3cc4ae 100644
--- a/core/res/res/values/arrays.xml
+++ b/core/res/res/values/arrays.xml
@@ -310,7 +310,11 @@
        <item>@drawable/fastscroll_label_right_material</item>
        <item>@drawable/fastscroll_thumb_material</item>
        <item>@drawable/fastscroll_track_material</item>
+       <item>@drawable/floating_popup_background_dark</item>
+       <item>@drawable/floating_popup_background_light</item>
        <item>@drawable/ic_ab_back_material</item>
+       <item>@drawable/ic_ab_back_material_dark</item>
+       <item>@drawable/ic_ab_back_material_light</item>
        <item>@drawable/ic_clear_material</item>
        <item>@drawable/ic_commit_search_api_material</item>
        <item>@drawable/ic_dialog_alert_material</item>
@@ -330,7 +334,11 @@
        <item>@drawable/ic_search_api_material</item>
        <item>@drawable/ic_voice_search_api_material</item>
        <item>@drawable/item_background_borderless_material</item>
+       <item>@drawable/item_background_borderless_material_dark</item>
+       <item>@drawable/item_background_borderless_material_light</item>
        <item>@drawable/item_background_material</item>
+       <item>@drawable/item_background_material_dark</item>
+       <item>@drawable/item_background_material_light</item>
        <item>@drawable/list_divider_material</item>
        <item>@drawable/list_section_divider_material</item>
        <item>@drawable/notification_material_action_background</item>
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 52e2cf0..c08d511 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -550,6 +550,17 @@
         <attr name="windowTransitionBackgroundFadeDuration" format="integer"/>
 
         <!-- ============ -->
+        <!-- Floating toolbar styles -->
+        <!-- ============ -->
+       <eat-comment />
+       <attr name="floatingToolbarCloseDrawable" format="reference" />
+       <attr name="floatingToolbarForegroundColor" format="reference|color" />
+       <attr name="floatingToolbarItemBackgroundBorderlessDrawable" format="reference" />
+       <attr name="floatingToolbarItemBackgroundDrawable" format="reference" />
+       <attr name="floatingToolbarOpenDrawable" format="reference" />
+       <attr name="floatingToolbarPopupBackgroundDrawable" format="reference" />
+
+        <!-- ============ -->
         <!-- Alert Dialog styles -->
         <!-- ============ -->
         <eat-comment />
diff --git a/core/res/res/values/themes.xml b/core/res/res/values/themes.xml
index ecf00f0..b7acdd4 100644
--- a/core/res/res/values/themes.xml
+++ b/core/res/res/values/themes.xml
@@ -389,6 +389,14 @@
         <item name="segmentedButtonStyle">@style/SegmentedButton</item>
         <item name="fingerprintAuthDrawable">@drawable/ic_fingerprint</item>
 
+        <!-- Floating toolbar styles -->
+        <item name="floatingToolbarCloseDrawable">@drawable/ic_ab_back_material_dark</item>
+        <item name="floatingToolbarForegroundColor">@color/foreground_material_dark</item>
+        <item name="floatingToolbarItemBackgroundBorderlessDrawable">@drawable/item_background_borderless_material_dark</item>
+        <item name="floatingToolbarItemBackgroundDrawable">@drawable/item_background_material_dark</item>
+        <item name="floatingToolbarOpenDrawable">@drawable/ic_menu_moreoverflow_material_dark</item>
+        <item name="floatingToolbarPopupBackgroundDrawable">@drawable/floating_popup_background_dark</item>
+
         <!-- SearchView attributes -->
         <item name="searchViewStyle">@style/Widget.Holo.SearchView</item>
         <item name="searchDialogTheme">@style/Theme.SearchBar</item>
@@ -538,6 +546,14 @@
         <item name="mediaRouteButtonStyle">@style/Widget.DeviceDefault.Light.MediaRouteButton</item>
         <item name="findOnPageNextDrawable">@drawable/ic_find_next_holo_light</item>
         <item name="findOnPagePreviousDrawable">@drawable/ic_find_previous_holo_light</item>
+
+        <!-- Floating toolbar styles -->
+        <item name="floatingToolbarCloseDrawable">@drawable/ic_ab_back_material_light</item>
+        <item name="floatingToolbarForegroundColor">@color/foreground_material_light</item>
+        <item name="floatingToolbarItemBackgroundBorderlessDrawable">@drawable/item_background_borderless_material_light</item>
+        <item name="floatingToolbarItemBackgroundDrawable">@drawable/item_background_material_light</item>
+        <item name="floatingToolbarOpenDrawable">@drawable/ic_menu_moreoverflow_material_light</item>
+        <item name="floatingToolbarPopupBackgroundDrawable">@drawable/floating_popup_background_light</item>
     </style>
 
     <!-- Variant of {@link #Theme_Light} with no title bar -->
diff --git a/graphics/java/android/graphics/drawable/Drawable.java b/graphics/java/android/graphics/drawable/Drawable.java
index e8e4664..532c888 100644
--- a/graphics/java/android/graphics/drawable/Drawable.java
+++ b/graphics/java/android/graphics/drawable/Drawable.java
@@ -809,6 +809,14 @@
      * {@link android.graphics.PixelFormat#TRANSPARENT}, or
      * {@link android.graphics.PixelFormat#OPAQUE}.
      *
+     * <p>An OPAQUE drawable is one that draws all all content within its bounds, completely
+     * covering anything behind the drawable. A TRANSPARENT drawable is one that draws nothing
+     * within its bounds, allowing everything behind it to show through. A TRANSLUCENT drawable
+     * is a drawable in any other state, where the drawable will draw some, but not all,
+     * of the content within its bounds and at least some content behind the drawable will
+     * be visible. If the visibility of the drawable's contents cannot be determined, the
+     * safest/best return value is TRANSLUCENT.
+     *
      * <p>Generally a Drawable should be as conservative as possible with the
      * value it returns.  For example, if it contains multiple child drawables
      * and only shows one of them at a time, if only one of the children is
diff --git a/libs/hwui/RenderNode.cpp b/libs/hwui/RenderNode.cpp
index 4ac4362..75e700a 100644
--- a/libs/hwui/RenderNode.cpp
+++ b/libs/hwui/RenderNode.cpp
@@ -392,11 +392,27 @@
         if (isLayer) {
             clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer
         }
-        LOG_ALWAYS_FATAL_IF(!isLayer && properties().getHasOverlappingRendering());
-        renderer.scaleAlpha(properties().getAlpha());
+        if (CC_LIKELY(isLayer || !properties().getHasOverlappingRendering())) {
+            // simply scale rendering content's alpha
+            renderer.scaleAlpha(properties().getAlpha());
+        } else {
+            // savelayer needed to create an offscreen buffer
+            Rect layerBounds(0, 0, getWidth(), getHeight());
+            if (clipFlags) {
+                properties().getClippingRectForFlags(clipFlags, &layerBounds);
+                clipFlags = 0; // all clipping done by savelayer
+            }
+            SaveLayerOp* op = new (handler.allocator()) SaveLayerOp(
+                    layerBounds.left, layerBounds.top,
+                    layerBounds.right, layerBounds.bottom,
+                    (int) (properties().getAlpha() * 255),
+                    SkCanvas::kHasAlphaLayer_SaveFlag | SkCanvas::kClipToLayer_SaveFlag);
+            handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
+        }
 
         if (CC_UNLIKELY(ATRACE_ENABLED() && properties().promotedToLayer())) {
-            // pretend to cause savelayer to warn about performance problem affecting old versions
+            // pretend alpha always causes savelayer to warn about
+            // performance problem affecting old versions
             ATRACE_FORMAT("%s alpha caused saveLayer %dx%d", getName(),
                     static_cast<int>(getWidth()),
                     static_cast<int>(getHeight()));
diff --git a/libs/hwui/RenderProperties.cpp b/libs/hwui/RenderProperties.cpp
index 07b8ce6..4f6ef4e 100644
--- a/libs/hwui/RenderProperties.cpp
+++ b/libs/hwui/RenderProperties.cpp
@@ -152,7 +152,24 @@
             clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer
         }
 
-        ALOGD("%*sScaleAlpha %.2f", level * 2, "", mPrimitiveFields.mAlpha);
+        if (CC_LIKELY(isLayer || !getHasOverlappingRendering())) {
+            // simply scale rendering content's alpha
+            ALOGD("%*sScaleAlpha %.2f", level * 2, "", mPrimitiveFields.mAlpha);
+        } else {
+            // savelayeralpha to create an offscreen buffer to apply alpha
+            Rect layerBounds(0, 0, getWidth(), getHeight());
+            if (clipFlags) {
+                getClippingRectForFlags(clipFlags, &layerBounds);
+                clipFlags = 0; // all clipping done by savelayer
+            }
+            ALOGD("%*sSaveLayerAlpha %d, %d, %d, %d, %d, 0x%x", level * 2, "",
+                    (int)layerBounds.left, (int)layerBounds.top,
+                    (int)layerBounds.right, (int)layerBounds.bottom,
+                    (int)(mPrimitiveFields.mAlpha * 255),
+                    SkCanvas::kHasAlphaLayer_SaveFlag | SkCanvas::kClipToLayer_SaveFlag);
+        }
+
+
     }
     if (clipFlags) {
         Rect clipRect;
diff --git a/libs/hwui/RenderProperties.h b/libs/hwui/RenderProperties.h
index 98029a8..65c1c4a 100644
--- a/libs/hwui/RenderProperties.h
+++ b/libs/hwui/RenderProperties.h
@@ -28,6 +28,7 @@
 #include <SkRegion.h>
 #include <SkXfermode.h>
 
+#include "Caches.h"
 #include "Rect.h"
 #include "RevealClip.h"
 #include "Outline.h"
@@ -577,10 +578,13 @@
     }
 
     bool promotedToLayer() const {
+        const int maxTextureSize = Caches::getInstance().maxTextureSize;
         return mLayerProperties.mType == LayerType::None
                 && !MathUtils::isZero(mPrimitiveFields.mAlpha)
                 && mPrimitiveFields.mAlpha < 1
-                && mPrimitiveFields.mHasOverlappingRendering;
+                && mPrimitiveFields.mHasOverlappingRendering
+                && mPrimitiveFields.mWidth <= maxTextureSize
+                && mPrimitiveFields.mHeight <= maxTextureSize;
     }
 
     LayerType effectiveLayerType() const {
diff --git a/packages/SystemUI/res/layout/mobile_signal_group.xml b/packages/SystemUI/res/layout/mobile_signal_group.xml
index 6a4ac2c..6ae5cf3 100644
--- a/packages/SystemUI/res/layout/mobile_signal_group.xml
+++ b/packages/SystemUI/res/layout/mobile_signal_group.xml
@@ -19,22 +19,25 @@
 -->
 <FrameLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:systemui="http://schemas.android.com/apk/res-auto"
     android:id="@+id/mobile_combo"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     >
-    <com.android.systemui.statusbar.AlphaOptimizedImageView
+    <com.android.systemui.statusbar.AnimatedImageView
         android:theme="@style/DualToneLightTheme"
         android:id="@+id/mobile_signal"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
+        systemui:hasOverlappingRendering="false"
         />
-    <com.android.systemui.statusbar.AlphaOptimizedImageView
+    <com.android.systemui.statusbar.AnimatedImageView
         android:theme="@style/DualToneDarkTheme"
         android:id="@+id/mobile_signal_dark"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:alpha="0.0"
+        systemui:hasOverlappingRendering="false"
         />
     <ImageView
         android:id="@+id/mobile_type"
diff --git a/packages/SystemUI/res/layout/signal_cluster_view.xml b/packages/SystemUI/res/layout/signal_cluster_view.xml
index a2121ee..f8bd6fd 100644
--- a/packages/SystemUI/res/layout/signal_cluster_view.xml
+++ b/packages/SystemUI/res/layout/signal_cluster_view.xml
@@ -20,6 +20,7 @@
 <!-- extends LinearLayout -->
 <com.android.systemui.statusbar.SignalClusterView
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:systemui="http://schemas.android.com/apk/res-auto"
     android:layout_height="match_parent"
     android:layout_width="wrap_content"
     android:gravity="center_vertical"
@@ -43,6 +44,7 @@
             android:id="@+id/ethernet"
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
+            systemui:hasOverlappingRendering="false"
             />
         <com.android.systemui.statusbar.AlphaOptimizedImageView
             android:theme="@style/DualToneDarkTheme"
@@ -50,6 +52,7 @@
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
             android:alpha="0.0"
+            systemui:hasOverlappingRendering="false"
             />
     </FrameLayout>
     <FrameLayout
@@ -62,6 +65,7 @@
             android:id="@+id/wifi_signal"
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
+            systemui:hasOverlappingRendering="false"
             />
         <com.android.systemui.statusbar.AlphaOptimizedImageView
             android:theme="@style/DualToneDarkTheme"
@@ -69,6 +73,7 @@
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
             android:alpha="0.0"
+            systemui:hasOverlappingRendering="false"
             />
     </FrameLayout>
     <View
@@ -94,6 +99,7 @@
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
             android:src="@drawable/stat_sys_no_sims"
+            systemui:hasOverlappingRendering="false"
             />
         <com.android.systemui.statusbar.AlphaOptimizedImageView
             android:theme="@style/DualToneDarkTheme"
@@ -102,6 +108,7 @@
             android:layout_width="wrap_content"
             android:src="@drawable/stat_sys_no_sims"
             android:alpha="0.0"
+            systemui:hasOverlappingRendering="false"
             />
     </FrameLayout>
     <View
diff --git a/packages/SystemUI/res/layout/status_bar_expanded_header.xml b/packages/SystemUI/res/layout/status_bar_expanded_header.xml
index 0e1517f..7262ed2 100644
--- a/packages/SystemUI/res/layout/status_bar_expanded_header.xml
+++ b/packages/SystemUI/res/layout/status_bar_expanded_header.xml
@@ -162,6 +162,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
+        systemui:hasOverlappingRendering="false"
         />
 
     <TextView
diff --git a/packages/SystemUI/res/values/attrs.xml b/packages/SystemUI/res/values/attrs.xml
index 354b70b..527248c 100644
--- a/packages/SystemUI/res/values/attrs.xml
+++ b/packages/SystemUI/res/values/attrs.xml
@@ -86,5 +86,9 @@
     <declare-styleable name="StatusBarWindowView_Layout">
         <attr name="ignoreRightInset" format="boolean" />
     </declare-styleable>
+
+    <declare-styleable name="AlphaOptimizedImageView">
+        <attr name="hasOverlappingRendering" format="boolean" />
+    </declare-styleable>
 </resources>
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/AlphaOptimizedImageView.java b/packages/SystemUI/src/com/android/systemui/statusbar/AlphaOptimizedImageView.java
index 858c118..700ea34 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/AlphaOptimizedImageView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/AlphaOptimizedImageView.java
@@ -17,34 +17,49 @@
 package com.android.systemui.statusbar;
 
 import android.content.Context;
+import android.content.res.TypedArray;
 import android.util.AttributeSet;
 import android.widget.ImageView;
 
+import com.android.systemui.R;
+
 /**
- * An ImageView which does not have overlapping rendering commands and therefore does not need a
- * layer when alpha is changed.
+ * An ImageView which supports an attribute specifying whether it has overlapping rendering
+ * commands and therefore does not need a layer when alpha is changed.
  */
-public class AlphaOptimizedImageView extends ImageView
-{
+public class AlphaOptimizedImageView extends ImageView {
+    private final boolean mHasOverlappingRendering;
+
     public AlphaOptimizedImageView(Context context) {
-        super(context);
+        this(context, null /* attrs */);
     }
 
     public AlphaOptimizedImageView(Context context, AttributeSet attrs) {
-        super(context, attrs);
+        this(context, attrs, 0 /* defStyleAttr */);
     }
 
     public AlphaOptimizedImageView(Context context, AttributeSet attrs, int defStyleAttr) {
-        super(context, attrs, defStyleAttr);
+        this(context, attrs, defStyleAttr, 0 /* defStyleRes */);
     }
 
     public AlphaOptimizedImageView(Context context, AttributeSet attrs, int defStyleAttr,
             int defStyleRes) {
         super(context, attrs, defStyleAttr, defStyleRes);
+
+        TypedArray a = context.getTheme().obtainStyledAttributes(attrs,
+                R.styleable.AlphaOptimizedImageView, 0, 0);
+
+        try {
+            // Default to true, which is what View.java defaults to
+            mHasOverlappingRendering = a.getBoolean(
+                    R.styleable.AlphaOptimizedImageView_hasOverlappingRendering, true);
+        } finally {
+            a.recycle();
+        }
     }
 
     @Override
     public boolean hasOverlappingRendering() {
-        return false;
+        return mHasOverlappingRendering;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/AnimatedImageView.java b/packages/SystemUI/src/com/android/systemui/statusbar/AnimatedImageView.java
index 9839fe9..90f7c08 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/AnimatedImageView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/AnimatedImageView.java
@@ -25,10 +25,15 @@
 import android.widget.RemoteViews.RemoteView;
 
 @RemoteView
-public class AnimatedImageView extends ImageView {
+public class AnimatedImageView extends AlphaOptimizedImageView {
     AnimationDrawable mAnim;
     boolean mAttached;
 
+    // Tracks the last image that was set, so that we don't refresh the image if it is exactly
+    // the same as the previous one. If this is a resid, we track that. If it's a drawable, we
+    // track the hashcode of the drawable.
+    int mDrawableId;
+
     public AnimatedImageView(Context context) {
         super(context);
     }
@@ -43,7 +48,7 @@
             mAnim.stop();
         }
         if (drawable instanceof AnimationDrawable) {
-            mAnim = (AnimationDrawable)drawable;
+            mAnim = (AnimationDrawable) drawable;
             if (isShown()) {
                 mAnim.start();
             }
@@ -54,6 +59,13 @@
 
     @Override
     public void setImageDrawable(Drawable drawable) {
+        if (drawable != null) {
+            if (mDrawableId == drawable.hashCode()) return;
+
+            mDrawableId = drawable.hashCode();
+        } else {
+            mDrawableId = 0;
+        }
         super.setImageDrawable(drawable);
         updateAnim();
     }
@@ -61,6 +73,9 @@
     @Override
     @android.view.RemotableViewMethod
     public void setImageResource(int resid) {
+        if (mDrawableId == resid) return;
+
+        mDrawableId = resid;
         super.setImageResource(resid);
         updateAnim();
     }
diff --git a/services/core/java/com/android/server/BluetoothManagerService.java b/services/core/java/com/android/server/BluetoothManagerService.java
index 66fd36f..fbb6dc9 100644
--- a/services/core/java/com/android/server/BluetoothManagerService.java
+++ b/services/core/java/com/android/server/BluetoothManagerService.java
@@ -21,8 +21,8 @@
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothProfile;
 import android.bluetooth.IBluetooth;
-import android.bluetooth.IBluetoothGatt;
 import android.bluetooth.IBluetoothCallback;
+import android.bluetooth.IBluetoothGatt;
 import android.bluetooth.IBluetoothHeadset;
 import android.bluetooth.IBluetoothManager;
 import android.bluetooth.IBluetoothManagerCallback;
@@ -37,6 +37,7 @@
 import android.content.ServiceConnection;
 import android.content.pm.PackageManager;
 import android.content.pm.UserInfo;
+import android.database.ContentObserver;
 import android.os.Binder;
 import android.os.Handler;
 import android.os.IBinder;
@@ -56,11 +57,8 @@
 import java.io.FileDescriptor;
 import java.io.IOException;
 import java.io.PrintWriter;
-
 import java.util.HashMap;
 import java.util.Map;
-
-import java.util.*;
 class BluetoothManagerService extends IBluetoothManager.Stub {
     private static final String TAG = "BluetoothManagerService";
     private static final boolean DBG = true;
@@ -259,6 +257,8 @@
         mName = null;
         mErrorRecoveryRetryCounter = 0;
         mContentResolver = context.getContentResolver();
+        // Observe BLE scan only mode settings change.
+        registerForBleScanModeChange();
         mCallbacks = new RemoteCallbackList<IBluetoothManagerCallback>();
         mStateChangeCallbacks = new RemoteCallbackList<IBluetoothStateChangeCallback>();
         IntentFilter filter = new IntentFilter(Intent.ACTION_BOOT_COMPLETED);
@@ -458,6 +458,40 @@
         return false;
     }
 
+    // Monitor change of BLE scan only mode settings.
+    private void registerForBleScanModeChange() {
+        ContentObserver contentObserver = new ContentObserver(null) {
+            @Override
+            public void onChange(boolean selfChange) {
+                if (!isBleScanAlwaysAvailable()) {
+                    disableBleScanMode();
+                    clearBleApps();
+                    try {
+                        if (mBluetooth != null) mBluetooth.onBrEdrDown();
+                    } catch (RemoteException e) {
+                        Log.e(TAG, "error when disabling bluetooth", e);
+                    }
+                }
+            }
+        };
+
+        mContentResolver.registerContentObserver(
+                Settings.Global.getUriFor(Settings.Global.BLE_SCAN_ALWAYS_AVAILABLE),
+                false, contentObserver);
+    }
+
+    // Disable ble scan only mode.
+    private void disableBleScanMode() {
+        try {
+            if (mBluetooth != null && (mBluetooth.getState() != BluetoothAdapter.STATE_ON)) {
+                if (DBG) Log.d(TAG, "Reseting the mEnable flag for clean disable");
+                mEnable = false;
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "getState()", e);
+        }
+    }
+
     public int updateBleAppCount(IBinder token, boolean enable) {
         if (enable) {
             ClientDeathRecipient r = mBleApps.get(token);
@@ -478,11 +512,8 @@
         } else  {
             ClientDeathRecipient r = mBleApps.get(token);
             if (r != null) {
-                try {
-                    token.linkToDeath(r, 0);
-                } catch (RemoteException ex) {
-                    throw new IllegalArgumentException("Wake lock is already dead.");
-                }
+                // Unregister death recipient as the app goes away.
+                token.unlinkToDeath(r, 0);
                 mBleApps.remove(token);
                 synchronized (this) {
                     if (mBleAppCount > 0) --mBleAppCount;
@@ -492,18 +523,19 @@
         }
         if (DBG) Log.d(TAG, "Updated BleAppCount" + mBleAppCount);
         if (mBleAppCount == 0 && mEnable) {
-            try {
-                if (mBluetooth != null && (mBluetooth.getState() != BluetoothAdapter.STATE_ON)) {
-                    if (DBG) Log.d(TAG, "Reseting the mEnable flag for clean disable");
-                    mEnable = false;
-                }
-            } catch (RemoteException e) {
-                Log.e(TAG, "getState()", e);
-            }
+            disableBleScanMode();
         }
         return mBleAppCount;
     }
 
+    // Clear all apps using BLE scan only mode.
+    private void clearBleApps() {
+        synchronized (this) {
+            mBleApps.clear();
+            mBleAppCount = 0;
+        }
+    }
+
     /** @hide*/
     public boolean isBleAppPresent() {
         if (DBG) Log.d(TAG, "isBleAppPresent() count: " + mBleAppCount);
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 6496ba2..029a3b2 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -19382,15 +19382,16 @@
             enforceCallingPermission(android.Manifest.permission.SET_DEBUG_APP,
                     "setDumpHeapDebugLimit()");
         } else {
-            if (!Build.IS_DEBUGGABLE) {
-                throw new SecurityException("Not running a debuggable build");
-            }
             synchronized (mPidsSelfLocked) {
                 ProcessRecord proc = mPidsSelfLocked.get(Binder.getCallingPid());
                 if (proc == null) {
                     throw new SecurityException("No process found for calling pid "
                             + Binder.getCallingPid());
                 }
+                if (!Build.IS_DEBUGGABLE
+                        && (proc.info.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
+                    throw new SecurityException("Not running a debuggable build");
+                }
                 processName = proc.processName;
                 uid = proc.uid;
                 if (reportPackage != null && !proc.pkgList.containsKey(reportPackage)) {
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index 2753700..ea66a04 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -21,6 +21,9 @@
 import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE;
 import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA;
 import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES;
+import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
+import static org.xmlpull.v1.XmlPullParser.END_TAG;
+import static org.xmlpull.v1.XmlPullParser.TEXT;
 
 import android.Manifest.permission;
 import android.accessibilityservice.AccessibilityServiceInfo;
@@ -90,19 +93,19 @@
 import android.security.IKeyChainService;
 import android.security.KeyChain;
 import android.security.KeyChain.KeyChainConnection;
-import android.text.TextUtils;
 import android.service.persistentdata.PersistentDataBlockManager;
+import android.text.TextUtils;
 import android.util.Log;
 import android.util.PrintWriterPrinter;
 import android.util.Printer;
 import android.util.Slog;
 import android.util.SparseArray;
 import android.util.Xml;
+import android.view.IWindowManager;
 import android.view.accessibility.AccessibilityManager;
 import android.view.accessibility.IAccessibilityManager;
 import android.view.inputmethod.InputMethodInfo;
 import android.view.inputmethod.InputMethodManager;
-import android.view.IWindowManager;
 
 import com.android.internal.R;
 import com.android.internal.os.storage.ExternalStorageFormatter;
@@ -117,11 +120,6 @@
 import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo;
 
 import org.xmlpull.v1.XmlPullParser;
-
-import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
-import static org.xmlpull.v1.XmlPullParser.END_TAG;
-import static org.xmlpull.v1.XmlPullParser.TEXT;
-
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;
 
@@ -178,6 +176,7 @@
             = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION";
 
     private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning;
+    private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001;
 
     private static final boolean DBG = false;
 
@@ -354,6 +353,7 @@
                 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action "
                         + action + " for user " + userHandle);
                 mHandler.post(new Runnable() {
+                    @Override
                     public void run() {
                         handlePasswordExpirationNotification(userHandle);
                     }
@@ -1929,6 +1929,7 @@
      * @param adminReceiver The admin to add
      * @param refreshing true = update an active admin, no error
      */
+    @Override
     public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) {
         if (!mHasFeature) {
             return;
@@ -1980,6 +1981,7 @@
         }
     }
 
+    @Override
     public boolean isAdminActive(ComponentName adminReceiver, int userHandle) {
         if (!mHasFeature) {
             return false;
@@ -2002,6 +2004,7 @@
         }
     }
 
+    @Override
     public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) {
         if (!mHasFeature) {
             return false;
@@ -2016,6 +2019,7 @@
         }
     }
 
+    @Override
     @SuppressWarnings("unchecked")
     public List<ComponentName> getActiveAdmins(int userHandle) {
         if (!mHasFeature) {
@@ -2037,6 +2041,7 @@
         }
     }
 
+    @Override
     public boolean packageHasActiveAdmins(String packageName, int userHandle) {
         if (!mHasFeature) {
             return false;
@@ -2054,6 +2059,7 @@
         }
     }
 
+    @Override
     public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) {
         if (!mHasFeature) {
             return;
@@ -2081,6 +2087,7 @@
         }
     }
 
+    @Override
     public void setPasswordQuality(ComponentName who, int quality) {
         if (!mHasFeature) {
             return;
@@ -2099,6 +2106,7 @@
         }
     }
 
+    @Override
     public int getPasswordQuality(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
@@ -2128,6 +2136,7 @@
         }
     }
 
+    @Override
     public void setPasswordMinimumLength(ComponentName who, int length) {
         if (!mHasFeature) {
             return;
@@ -2144,6 +2153,7 @@
         }
     }
 
+    @Override
     public int getPasswordMinimumLength(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2173,6 +2183,7 @@
         }
     }
 
+    @Override
     public void setPasswordHistoryLength(ComponentName who, int length) {
         if (!mHasFeature) {
             return;
@@ -2189,6 +2200,7 @@
         }
     }
 
+    @Override
     public int getPasswordHistoryLength(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2218,6 +2230,7 @@
         }
     }
 
+    @Override
     public void setPasswordExpirationTimeout(ComponentName who, long timeout) {
         if (!mHasFeature) {
             return;
@@ -2247,6 +2260,7 @@
      * Return a single admin's expiration cycle time, or the min of all cycle times.
      * Returns 0 if not configured.
      */
+    @Override
     public long getPasswordExpirationTimeout(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0L;
@@ -2373,6 +2387,7 @@
         return timeout;
     }
 
+    @Override
     public long getPasswordExpiration(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0L;
@@ -2383,6 +2398,7 @@
         }
     }
 
+    @Override
     public void setPasswordMinimumUpperCase(ComponentName who, int length) {
         if (!mHasFeature) {
             return;
@@ -2399,6 +2415,7 @@
         }
     }
 
+    @Override
     public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2428,6 +2445,7 @@
         }
     }
 
+    @Override
     public void setPasswordMinimumLowerCase(ComponentName who, int length) {
         Preconditions.checkNotNull(who, "ComponentName is null");
         final int userHandle = UserHandle.getCallingUserId();
@@ -2441,6 +2459,7 @@
         }
     }
 
+    @Override
     public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2470,6 +2489,7 @@
         }
     }
 
+    @Override
     public void setPasswordMinimumLetters(ComponentName who, int length) {
         if (!mHasFeature) {
             return;
@@ -2486,6 +2506,7 @@
         }
     }
 
+    @Override
     public int getPasswordMinimumLetters(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2518,6 +2539,7 @@
         }
     }
 
+    @Override
     public void setPasswordMinimumNumeric(ComponentName who, int length) {
         if (!mHasFeature) {
             return;
@@ -2534,6 +2556,7 @@
         }
     }
 
+    @Override
     public int getPasswordMinimumNumeric(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2566,6 +2589,7 @@
         }
     }
 
+    @Override
     public void setPasswordMinimumSymbols(ComponentName who, int length) {
         if (!mHasFeature) {
             return;
@@ -2582,6 +2606,7 @@
         }
     }
 
+    @Override
     public int getPasswordMinimumSymbols(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2614,6 +2639,7 @@
         }
     }
 
+    @Override
     public void setPasswordMinimumNonLetter(ComponentName who, int length) {
         if (!mHasFeature) {
             return;
@@ -2630,6 +2656,7 @@
         }
     }
 
+    @Override
     public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -2662,6 +2689,7 @@
         }
     }
 
+    @Override
     public boolean isActivePasswordSufficient(int userHandle) {
         if (!mHasFeature) {
             return true;
@@ -2696,6 +2724,7 @@
         }
     }
 
+    @Override
     public int getCurrentFailedPasswordAttempts(int userHandle) {
         synchronized (this) {
             // This API can only be called by an active device admin,
@@ -2712,6 +2741,7 @@
         }
     }
 
+    @Override
     public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) {
         if (!mHasFeature) {
             return;
@@ -2786,6 +2816,7 @@
         return strictestAdmin;
     }
 
+    @Override
     public boolean resetPassword(String passwordOrNull, int flags) {
         if (!mHasFeature) {
             return false;
@@ -2938,6 +2969,7 @@
         }
     }
 
+    @Override
     public boolean getDoNotAskCredentialsOnBoot() {
         mContext.enforceCallingOrSelfPermission(
                 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null);
@@ -2947,6 +2979,7 @@
         }
     }
 
+    @Override
     public void setMaximumTimeToLock(ComponentName who, long timeMs) {
         if (!mHasFeature) {
             return;
@@ -2988,6 +3021,7 @@
         }
     }
 
+    @Override
     public long getMaximumTimeToLock(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -3020,6 +3054,7 @@
         }
     }
 
+    @Override
     public void lockNow() {
         if (!mHasFeature) {
             return;
@@ -3336,14 +3371,19 @@
             wipeDataLocked(wipeExtRequested, reason);
         } else {
             mHandler.post(new Runnable() {
+                @Override
                 public void run() {
                     try {
                         IActivityManager am = ActivityManagerNative.getDefault();
                         if (am.getCurrentUser().id == userHandle) {
                             am.switchUser(UserHandle.USER_OWNER);
                         }
+
+                        boolean isManagedProfile = isManagedProfile(userHandle);
                         if (!mUserManager.removeUser(userHandle)) {
                             Slog.w(LOG_TAG, "Couldn't remove user " + userHandle);
+                        } else if (isManagedProfile) {
+                            sendWipeProfileNotification();
                         }
                     } catch (RemoteException re) {
                         // Shouldn't happen
@@ -3353,6 +3393,19 @@
         }
     }
 
+    private void sendWipeProfileNotification() {
+        String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe);
+        Notification notification = new Notification.Builder(mContext)
+                .setSmallIcon(android.R.drawable.stat_sys_warning)
+                .setContentTitle(mContext.getString(R.string.work_profile_deleted))
+                .setContentText(contentText)
+                .setColor(mContext.getColor(R.color.system_notification_accent_color))
+                .setStyle(new Notification.BigTextStyle().bigText(contentText))
+                .build();
+        getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification);
+    }
+
+    @Override
     public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) {
         if (!mHasFeature) {
             return;
@@ -3386,6 +3439,7 @@
         }
     }
 
+    @Override
     public void setActivePasswordState(int quality, int length, int letters, int uppercase,
             int lowercase, int numbers, int symbols, int nonletter, int userHandle) {
         if (!mHasFeature) {
@@ -3455,6 +3509,7 @@
             }
     }
 
+    @Override
     public void reportFailedPasswordAttempt(int userHandle) {
         enforceCrossUserPermission(userHandle);
         enforceNotManagedProfile(userHandle, "report failed password attempt");
@@ -3496,6 +3551,7 @@
         }
     }
 
+    @Override
     public void reportSuccessfulPasswordAttempt(int userHandle) {
         enforceCrossUserPermission(userHandle);
         mContext.enforceCallingOrSelfPermission(
@@ -3521,6 +3577,7 @@
         }
     }
 
+    @Override
     public ComponentName setGlobalProxy(ComponentName who, String proxySpec,
             String exclusionList) {
         if (!mHasFeature) {
@@ -3575,6 +3632,7 @@
         }
     }
 
+    @Override
     public ComponentName getGlobalProxyAdmin(int userHandle) {
         if (!mHasFeature) {
             return null;
@@ -3598,6 +3656,7 @@
         return null;
     }
 
+    @Override
     public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) {
         synchronized (this) {
             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
@@ -3659,6 +3718,7 @@
      * Set the storage encryption request for a single admin.  Returns the new total request
      * status (for all admins).
      */
+    @Override
     public int setStorageEncryption(ComponentName who, boolean encrypt) {
         if (!mHasFeature) {
             return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED;
@@ -3711,6 +3771,7 @@
      * Get the current storage encryption request status for a given admin, or aggregate of all
      * active admins.
      */
+    @Override
     public boolean getStorageEncryption(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return false;
@@ -3740,6 +3801,7 @@
     /**
      * Get the current encryption status of the device.
      */
+    @Override
     public int getStorageEncryptionStatus(int userHandle) {
         if (!mHasFeature) {
             // Ok to return current status.
@@ -3794,6 +3856,7 @@
     /**
      * Set whether the screen capture is disabled for the user managed by the specified admin.
      */
+    @Override
     public void setScreenCaptureDisabled(ComponentName who, boolean disabled) {
         if (!mHasFeature) {
             return;
@@ -3815,6 +3878,7 @@
      * Returns whether or not screen capture is disabled for a given admin, or disabled for any
      * active admin (if given admin is null).
      */
+    @Override
     public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return false;
@@ -3851,6 +3915,7 @@
     /**
      * Set whether auto time is required by the specified admin (must be device owner).
      */
+    @Override
     public void setAutoTimeRequired(ComponentName who, boolean required) {
         if (!mHasFeature) {
             return;
@@ -3881,6 +3946,7 @@
     /**
      * Returns whether or not auto time is required by the device owner.
      */
+    @Override
     public boolean getAutoTimeRequired() {
         if (!mHasFeature) {
             return false;
@@ -3901,6 +3967,7 @@
     /**
      * Disables all device cameras according to the specified admin.
      */
+    @Override
     public void setCameraDisabled(ComponentName who, boolean disabled) {
         if (!mHasFeature) {
             return;
@@ -3922,6 +3989,7 @@
      * Gets whether or not all device cameras are disabled for a given admin, or disabled for any
      * active admins.
      */
+    @Override
     public boolean getCameraDisabled(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return false;
@@ -3948,6 +4016,7 @@
     /**
      * Selectively disable keyguard features.
      */
+    @Override
     public void setKeyguardDisabledFeatures(ComponentName who, int which) {
         if (!mHasFeature) {
             return;
@@ -3972,6 +4041,7 @@
      * Gets the disabled state for features in keyguard for the given admin,
      * or the aggregate of all active admins if who is null.
      */
+    @Override
     public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) {
         if (!mHasFeature) {
             return 0;
@@ -4735,6 +4805,7 @@
         }
     }
 
+    @Override
     public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent,
             PersistableBundle args) {
         if (!mHasFeature) {
@@ -4753,6 +4824,7 @@
         }
     }
 
+    @Override
     public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin,
             ComponentName agent, int userHandle) {
         if (!mHasFeature) {
@@ -4834,6 +4906,7 @@
         }
     }
 
+    @Override
     public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) {
         Preconditions.checkNotNull(who, "ComponentName is null");
         int callingUserId = UserHandle.getCallingUserId();
@@ -4859,6 +4932,7 @@
         }
     }
 
+    @Override
     public void clearCrossProfileIntentFilters(ComponentName who) {
         Preconditions.checkNotNull(who, "ComponentName is null");
         int callingUserId = UserHandle.getCallingUserId();
@@ -5779,6 +5853,7 @@
      * This function can only be called by the device owner.
      * @param packages The list of packages allowed to enter lock task mode.
      */
+    @Override
     public void setLockTaskPackages(ComponentName who, String[] packages)
             throws SecurityException {
         Preconditions.checkNotNull(who, "ComponentName is null");
@@ -5802,6 +5877,7 @@
     /**
      * This function returns the list of components allowed to start the task lock mode.
      */
+    @Override
     public String[] getLockTaskPackages(ComponentName who) {
         Preconditions.checkNotNull(who, "ComponentName is null");
         synchronized (this) {
@@ -5822,6 +5898,7 @@
      * lock task mode.
      * @param pkg The package to check
      */
+    @Override
     public boolean isLockTaskPermitted(String pkg) {
         // Get current user's devicepolicy
         int uid = Binder.getCallingUid();
diff --git a/services/usage/java/com/android/server/usage/AppIdleHistory.java b/services/usage/java/com/android/server/usage/AppIdleHistory.java
index 9d3db16..e3c0868 100644
--- a/services/usage/java/com/android/server/usage/AppIdleHistory.java
+++ b/services/usage/java/com/android/server/usage/AppIdleHistory.java
@@ -27,34 +27,27 @@
  */
 public class AppIdleHistory {
 
-    private SparseArray<ArrayMap<String,byte[]>> idleHistory = new SparseArray<>();
+    private SparseArray<ArrayMap<String,byte[]>> mIdleHistory = new SparseArray<>();
     private long lastPeriod = 0;
     private static final long ONE_MINUTE = 60 * 1000;
     private static final int HISTORY_SIZE = 100;
     private static final int FLAG_LAST_STATE = 2;
     private static final int FLAG_PARTIAL_ACTIVE = 1;
-    private static final long PERIOD_DURATION = UsageStatsService.DEBUG ? ONE_MINUTE
+    private static final long PERIOD_DURATION = UsageStatsService.COMPRESS_TIME ? ONE_MINUTE
             : 60 * ONE_MINUTE;
 
     public void addEntry(String packageName, int userId, boolean idle, long timeNow) {
-        ArrayMap<String, byte[]> userHistory = idleHistory.get(userId);
-        if (userHistory == null) {
-            userHistory = new ArrayMap<>();
-            idleHistory.put(userId, userHistory);
-        }
-        byte[] packageHistory = userHistory.get(packageName);
-        if (packageHistory == null) {
-            packageHistory = new byte[HISTORY_SIZE];
-            userHistory.put(packageName, packageHistory);
-        }
+        ArrayMap<String, byte[]> userHistory = getUserHistory(userId);
+        byte[] packageHistory = getPackageHistory(userHistory, packageName);
+
         long thisPeriod = timeNow / PERIOD_DURATION;
         // Has the period switched over? Slide all users' package histories
         if (lastPeriod != 0 && lastPeriod < thisPeriod
                 && (thisPeriod - lastPeriod) < HISTORY_SIZE - 1) {
             int diff = (int) (thisPeriod - lastPeriod);
-            final int NUSERS = idleHistory.size();
+            final int NUSERS = mIdleHistory.size();
             for (int u = 0; u < NUSERS; u++) {
-                userHistory = idleHistory.valueAt(u);
+                userHistory = mIdleHistory.valueAt(u);
                 for (byte[] history : userHistory.values()) {
                     // Shift left
                     System.arraycopy(history, diff, history, 0, HISTORY_SIZE - diff);
@@ -74,12 +67,36 @@
         }
     }
 
+    private ArrayMap<String, byte[]> getUserHistory(int userId) {
+        ArrayMap<String, byte[]> userHistory = mIdleHistory.get(userId);
+        if (userHistory == null) {
+            userHistory = new ArrayMap<>();
+            mIdleHistory.put(userId, userHistory);
+        }
+        return userHistory;
+    }
+
+    private byte[] getPackageHistory(ArrayMap<String, byte[]> userHistory, String packageName) {
+        byte[] packageHistory = userHistory.get(packageName);
+        if (packageHistory == null) {
+            packageHistory = new byte[HISTORY_SIZE];
+            userHistory.put(packageName, packageHistory);
+        }
+        return packageHistory;
+    }
+
     public void removeUser(int userId) {
-        idleHistory.remove(userId);
+        mIdleHistory.remove(userId);
+    }
+
+    public boolean isIdle(int userId, String packageName) {
+        ArrayMap<String, byte[]> userHistory = getUserHistory(userId);
+        byte[] packageHistory = getPackageHistory(userHistory, packageName);
+        return (packageHistory[HISTORY_SIZE - 1] & FLAG_LAST_STATE) == 0;
     }
 
     public void dump(IndentingPrintWriter idpw, int userId) {
-        ArrayMap<String, byte[]> userHistory = idleHistory.get(userId);
+        ArrayMap<String, byte[]> userHistory = mIdleHistory.get(userId);
         if (userHistory == null) return;
         final int P = userHistory.size();
         for (int p = 0; p < P; p++) {
diff --git a/services/usage/java/com/android/server/usage/UsageStatsService.java b/services/usage/java/com/android/server/usage/UsageStatsService.java
index 7a34757..8e1895e 100644
--- a/services/usage/java/com/android/server/usage/UsageStatsService.java
+++ b/services/usage/java/com/android/server/usage/UsageStatsService.java
@@ -43,6 +43,7 @@
 import android.hardware.display.DisplayManager;
 import android.net.Uri;
 import android.os.BatteryManager;
+import android.os.BatteryStats;
 import android.os.Binder;
 import android.os.Environment;
 import android.os.Handler;
@@ -65,6 +66,7 @@
 import android.view.Display;
 
 import com.android.internal.annotations.GuardedBy;
+import com.android.internal.app.IBatteryStats;
 import com.android.internal.os.BackgroundThread;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.DeviceIdleController;
@@ -91,7 +93,7 @@
     static final String TAG = "UsageStatsService";
 
     static final boolean DEBUG = false;
-    private static final boolean COMPRESS_TIME = false;
+    static final boolean COMPRESS_TIME = false;
 
     private static final long TEN_SECONDS = 10 * 1000;
     private static final long ONE_MINUTE = 60 * 1000;
@@ -128,6 +130,7 @@
     IDeviceIdleController mDeviceIdleController;
     private DisplayManager mDisplayManager;
     private PowerManager mPowerManager;
+    private IBatteryStats mBatteryStats;
 
     private final SparseArray<UserUsageStatsService> mUserState = new SparseArray<>();
     private File mUsageStatsDir;
@@ -200,6 +203,8 @@
             mAppWidgetManager = getContext().getSystemService(AppWidgetManager.class);
             mDeviceIdleController = IDeviceIdleController.Stub.asInterface(
                     ServiceManager.getService(DeviceIdleController.SERVICE_NAME));
+            mBatteryStats = IBatteryStats.Stub.asInterface(
+                    ServiceManager.getService(BatteryStats.SERVICE_NAME));
             mDisplayManager = (DisplayManager) getContext().getSystemService(
                     Context.DISPLAY_SERVICE);
             mPowerManager = getContext().getSystemService(PowerManager.class);
@@ -228,7 +233,7 @@
                 }
             } else if (Intent.ACTION_USER_STARTED.equals(intent.getAction())) {
                 if (userId >=0) {
-                    postCheckIdleStates();
+                    postCheckIdleStates(userId);
                 }
             }
         }
@@ -307,7 +312,7 @@
                     mLastAppIdleParoledTime = checkAndGetTimeLocked();
                     postNextParoleTimeout();
                 }
-                postCheckIdleStates();
+                postCheckIdleStates(UserHandle.USER_ALL);
             }
         }
     }
@@ -332,22 +337,25 @@
         mHandler.sendEmptyMessageDelayed(MSG_PAROLE_END_TIMEOUT, DEFAULT_PAROLE_DURATION);
     }
 
-    void postCheckIdleStates() {
-        mHandler.removeMessages(MSG_CHECK_IDLE_STATES);
-        mHandler.sendEmptyMessage(MSG_CHECK_IDLE_STATES);
+    void postCheckIdleStates(int userId) {
+        mHandler.sendMessage(mHandler.obtainMessage(MSG_CHECK_IDLE_STATES, userId, 0));
     }
 
-    /** Check all running users' apps to see if they enter an idle state. */
-    void checkIdleStates() {
-        final int[] runningUsers;
+    /** Check all running users' or specified user's apps to see if they enter an idle state. */
+    void checkIdleStates(int checkUserId) {
+        final int[] userIds;
         try {
-            runningUsers = ActivityManagerNative.getDefault().getRunningUserIds();
+            if (checkUserId == UserHandle.USER_ALL) {
+                userIds = ActivityManagerNative.getDefault().getRunningUserIds();
+            } else {
+                userIds = new int[] { checkUserId };
+            }
         } catch (RemoteException re) {
             return;
         }
 
-        for (int i = 0; i < runningUsers.length; i++) {
-            final int userId = runningUsers[i];
+        for (int i = 0; i < userIds.length; i++) {
+            final int userId = userIds[i];
             List<PackageInfo> packages =
                     getContext().getPackageManager().getInstalledPackages(
                             PackageManager.GET_DISABLED_COMPONENTS
@@ -355,17 +363,22 @@
                             userId);
             synchronized (mLock) {
                 final long timeNow = checkAndGetTimeLocked();
+                final long screenOnTime = getScreenOnTimeLocked(timeNow);
+                UserUsageStatsService service = getUserDataAndInitializeIfNeededLocked(userId,
+                        timeNow);
                 final int packageCount = packages.size();
                 for (int p = 0; p < packageCount; p++) {
                     final String packageName = packages.get(p).packageName;
-                    final boolean isIdle = isAppIdleFiltered(packageName, userId, timeNow);
+                    final boolean isIdle = isAppIdleFiltered(packageName, userId, service, timeNow,
+                            screenOnTime);
                     mHandler.sendMessage(mHandler.obtainMessage(MSG_INFORM_LISTENERS,
                             userId, isIdle ? 1 : 0, packageName));
                     mAppIdleHistory.addEntry(packageName, userId, isIdle, timeNow);
                 }
             }
         }
-        mHandler.sendEmptyMessageDelayed(MSG_CHECK_IDLE_STATES, mCheckIdleIntervalMillis);
+        mHandler.sendMessageDelayed(mHandler.obtainMessage(MSG_CHECK_IDLE_STATES, checkUserId, 0),
+                mCheckIdleIntervalMillis);
     }
 
     /** Check if it's been a while since last parole and let idle apps do some work */
@@ -386,6 +399,20 @@
         }
     }
 
+    private void notifyBatteryStats(String packageName, int userId, boolean idle) {
+        try {
+            int uid = AppGlobals.getPackageManager().getPackageUid(packageName, userId);
+            if (idle) {
+                mBatteryStats.noteEvent(BatteryStats.HistoryItem.EVENT_PACKAGE_INACTIVE,
+                        packageName, uid);
+            } else {
+                mBatteryStats.noteEvent(BatteryStats.HistoryItem.EVENT_PACKAGE_ACTIVE,
+                        packageName, uid);
+            }
+        } catch (RemoteException re) {
+        }
+    }
+
     void updateDisplayLocked() {
         boolean screenOn = mDisplayManager.getDisplay(Display.DEFAULT_DISPLAY).getState()
                 == Display.STATE_ON;
@@ -545,7 +572,7 @@
             final long lastUsedTime = service.getSystemLastUsedTime(event.mPackage);
             final boolean previouslyIdle = hasPassedIdleTimeoutLocked(beginIdleTime,
                     lastUsedTime, screenOnTime, timeNow);
-            service.reportEvent(event, getScreenOnTimeLocked(timeNow));
+            service.reportEvent(event, screenOnTime);
             // Inform listeners if necessary
             if ((event.mEventType == Event.MOVE_TO_FOREGROUND
                     || event.mEventType == Event.MOVE_TO_BACKGROUND
@@ -555,6 +582,7 @@
                     // 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);
                     mAppIdleHistory.addEntry(event.mPackage, userId, false, timeNow);
                 }
             }
@@ -586,6 +614,9 @@
                 // Slog.d(TAG, "Informing listeners of out-of-idle " + event.mPackage);
                 mHandler.sendMessage(mHandler.obtainMessage(MSG_INFORM_LISTENERS, userId,
                         /* idle = */ idle ? 1 : 0, packageName));
+                if (!idle) {
+                    notifyBatteryStats(packageName, userId, idle);
+                }
                 mAppIdleHistory.addEntry(packageName, userId, idle, timeNow);
             }
         }
@@ -660,19 +691,20 @@
         }
     }
 
-    private boolean isAppIdleUnfiltered(String packageName, int userId, long timeNow) {
+    private boolean isAppIdleUnfiltered(String packageName, UserUsageStatsService userService,
+            long timeNow, long screenOnTime) {
         synchronized (mLock) {
-            final long screenOnTime = getScreenOnTimeLocked(timeNow);
-            final UserUsageStatsService service =
-                    getUserDataAndInitializeIfNeededLocked(userId, timeNow);
-            long beginIdleTime = service.getBeginIdleTime(packageName);
-            long lastUsedTime = service.getSystemLastUsedTime(packageName);
-            return hasPassedIdleTimeoutLocked(beginIdleTime, lastUsedTime, screenOnTime, timeNow);
+            long beginIdleTime = userService.getBeginIdleTime(packageName);
+            long lastUsedTime = userService.getSystemLastUsedTime(packageName);
+            return hasPassedIdleTimeoutLocked(beginIdleTime, lastUsedTime, screenOnTime,
+                    timeNow);
         }
     }
 
     /**
-     * @param timestamp when the app was last used in device usage timebase
+     * @param beginIdleTime when the app was last used in device usage timebase
+     * @param lastUsedTime wallclock time of when the app was last used
+     * @param screenOnTime screen-on timebase time
      * @param currentTime current time in device usage timebase
      * @return whether it's been used far enough in the past to be considered inactive
      */
@@ -696,18 +728,29 @@
         }
     }
 
+    boolean isAppIdleFiltered(String packageName, int userId, long timeNow) {
+        final UserUsageStatsService userService;
+        final long screenOnTime;
+        synchronized (mLock) {
+            if (timeNow == -1) {
+                timeNow = checkAndGetTimeLocked();
+            }
+            userService = getUserDataAndInitializeIfNeededLocked(userId, timeNow);
+            screenOnTime = getScreenOnTimeLocked(timeNow);
+        }
+        return isAppIdleFiltered(packageName, userId, userService, timeNow, screenOnTime);
+    }
+
     /**
      * Checks if an app has been idle for a while and filters out apps that are excluded.
      * It returns false if the current system state allows all apps to be considered active.
      * This happens if the device is plugged in or temporarily allowed to make exceptions.
      * Called by interface impls.
      */
-    boolean isAppIdleFiltered(String packageName, int userId, long timeNow) {
+    private boolean isAppIdleFiltered(String packageName, int userId,
+            UserUsageStatsService userService, long timeNow, long screenOnTime) {
         if (packageName == null) return false;
         synchronized (mLock) {
-            if (timeNow == -1) {
-                timeNow = checkAndGetTimeLocked();
-            }
             // Temporary exemption, probably due to device charging or occasional allowance to
             // be allowed to sync, etc.
             if (mAppIdleParoled) {
@@ -735,7 +778,7 @@
             return false;
         }
 
-        return isAppIdleUnfiltered(packageName, userId, timeNow);
+        return isAppIdleUnfiltered(packageName, userService, timeNow, screenOnTime);
     }
 
     void setAppIdle(String packageName, boolean idle, int userId) {
@@ -844,7 +887,7 @@
                     break;
 
                 case MSG_CHECK_IDLE_STATES:
-                    checkIdleStates();
+                    checkIdleStates(msg.arg1);
                     break;
 
                 case MSG_CHECK_PAROLE_TIMEOUT:
@@ -884,7 +927,7 @@
                     UserHandle.USER_OWNER);
             mCheckIdleIntervalMillis = Math.min(DEFAULT_CHECK_IDLE_INTERVAL,
                     mAppIdleDurationMillis / 4);
-            postCheckIdleStates();
+            postCheckIdleStates(UserHandle.USER_ALL);
         }
     }
 
diff --git a/telecomm/java/android/telecom/Call.java b/telecomm/java/android/telecom/Call.java
index a2e0706..e756a57 100644
--- a/telecomm/java/android/telecom/Call.java
+++ b/telecomm/java/android/telecom/Call.java
@@ -380,7 +380,7 @@
                 builder.append(" PROPERTY_HIGH_DEF_AUDIO");
             }
             if (hasProperty(properties, PROPERTY_EMERGENCY_CALLBACK_MODE)) {
-                builder.append(" EMERGENCY_CALLBACK_MODE");
+                builder.append(" PROPERTY_EMERGENCY_CALLBACK_MODE");
             }
             builder.append("]");
             return builder.toString();