Merge "Fix XML parsing crash in SettingsProvider"
diff --git a/api/current.txt b/api/current.txt
index 11db5c3..c43307e 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -413,6 +413,7 @@
     field public static final int colorActivatedHighlight = 16843664; // 0x1010390
     field public static final int colorBackground = 16842801; // 0x1010031
     field public static final int colorBackgroundCacheHint = 16843435; // 0x10102ab
+    field public static final int colorBackgroundFloating = 16844007; // 0x10104e7
     field public static final int colorButtonNormal = 16843819; // 0x101042b
     field public static final int colorControlActivated = 16843818; // 0x101042a
     field public static final int colorControlHighlight = 16843820; // 0x101042c
@@ -36925,6 +36926,26 @@
     method public abstract void onReceivedIcon(java.lang.String, android.graphics.Bitmap);
   }
 
+  public class WebMessage {
+    ctor public WebMessage(java.lang.String);
+    ctor public WebMessage(java.lang.String, android.webkit.WebMessagePort[]);
+    method public java.lang.String getData();
+    method public android.webkit.WebMessagePort[] getPorts();
+  }
+
+  public abstract class WebMessagePort {
+    ctor public WebMessagePort();
+    method public abstract void close();
+    method public abstract void postMessage(android.webkit.WebMessage);
+    method public abstract void setWebMessageCallback(android.webkit.WebMessagePort.WebMessageCallback);
+    method public abstract void setWebMessageCallback(android.webkit.WebMessagePort.WebMessageCallback, android.os.Handler);
+  }
+
+  public static abstract class WebMessagePort.WebMessageCallback {
+    ctor public WebMessagePort.WebMessageCallback();
+    method public void onMessage(android.webkit.WebMessagePort, android.webkit.WebMessage);
+  }
+
   public abstract class WebResourceError {
     ctor public WebResourceError();
     method public abstract java.lang.String getDescription();
@@ -37168,6 +37189,7 @@
     method public android.webkit.WebBackForwardList copyBackForwardList();
     method public deprecated android.print.PrintDocumentAdapter createPrintDocumentAdapter();
     method public android.print.PrintDocumentAdapter createPrintDocumentAdapter(java.lang.String);
+    method public android.webkit.WebMessagePort[] createWebMessageChannel();
     method public void destroy();
     method public void documentHasImages(android.os.Message);
     method public static void enableSlowWholeDocumentDraw();
@@ -37208,6 +37230,7 @@
     method public boolean pageDown(boolean);
     method public boolean pageUp(boolean);
     method public void pauseTimers();
+    method public void postMessageToMainFrame(android.webkit.WebMessage, android.net.Uri);
     method public void postUrl(java.lang.String, byte[]);
     method public void reload();
     method public void removeJavascriptInterface(java.lang.String);
diff --git a/api/system-current.txt b/api/system-current.txt
index da5986f5..6acea9e 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -485,6 +485,7 @@
     field public static final int colorActivatedHighlight = 16843664; // 0x1010390
     field public static final int colorBackground = 16842801; // 0x1010031
     field public static final int colorBackgroundCacheHint = 16843435; // 0x10102ab
+    field public static final int colorBackgroundFloating = 16844007; // 0x10104e7
     field public static final int colorButtonNormal = 16843819; // 0x101042b
     field public static final int colorControlActivated = 16843818; // 0x101042a
     field public static final int colorControlHighlight = 16843820; // 0x101042c
@@ -39154,6 +39155,26 @@
     method public abstract void onReceivedIcon(java.lang.String, android.graphics.Bitmap);
   }
 
+  public class WebMessage {
+    ctor public WebMessage(java.lang.String);
+    ctor public WebMessage(java.lang.String, android.webkit.WebMessagePort[]);
+    method public java.lang.String getData();
+    method public android.webkit.WebMessagePort[] getPorts();
+  }
+
+  public abstract class WebMessagePort {
+    ctor public WebMessagePort();
+    method public abstract void close();
+    method public abstract void postMessage(android.webkit.WebMessage);
+    method public abstract void setWebMessageCallback(android.webkit.WebMessagePort.WebMessageCallback);
+    method public abstract void setWebMessageCallback(android.webkit.WebMessagePort.WebMessageCallback, android.os.Handler);
+  }
+
+  public static abstract class WebMessagePort.WebMessageCallback {
+    ctor public WebMessagePort.WebMessageCallback();
+    method public void onMessage(android.webkit.WebMessagePort, android.webkit.WebMessage);
+  }
+
   public abstract class WebResourceError {
     ctor public WebResourceError();
     method public abstract java.lang.String getDescription();
@@ -39411,6 +39432,7 @@
     method public android.webkit.WebBackForwardList copyBackForwardList();
     method public deprecated android.print.PrintDocumentAdapter createPrintDocumentAdapter();
     method public android.print.PrintDocumentAdapter createPrintDocumentAdapter(java.lang.String);
+    method public android.webkit.WebMessagePort[] createWebMessageChannel();
     method public void destroy();
     method public void documentHasImages(android.os.Message);
     method public static void enableSlowWholeDocumentDraw();
@@ -39452,6 +39474,7 @@
     method public boolean pageDown(boolean);
     method public boolean pageUp(boolean);
     method public void pauseTimers();
+    method public void postMessageToMainFrame(android.webkit.WebMessage, android.net.Uri);
     method public void postUrl(java.lang.String, byte[]);
     method public void reload();
     method public void removeJavascriptInterface(java.lang.String);
@@ -39664,6 +39687,7 @@
     method public abstract void clearView();
     method public abstract android.webkit.WebBackForwardList copyBackForwardList();
     method public abstract android.print.PrintDocumentAdapter createPrintDocumentAdapter(java.lang.String);
+    method public abstract android.webkit.WebMessagePort[] createWebMessageChannel();
     method public abstract void destroy();
     method public abstract void documentHasImages(android.os.Message);
     method public abstract void dumpViewHierarchyWithProperties(java.io.BufferedWriter, int);
@@ -39710,6 +39734,7 @@
     method public abstract boolean pageDown(boolean);
     method public abstract boolean pageUp(boolean);
     method public abstract void pauseTimers();
+    method public abstract void postMessageToMainFrame(android.webkit.WebMessage, android.net.Uri);
     method public abstract void postUrl(java.lang.String, byte[]);
     method public abstract void reload();
     method public abstract void removeJavascriptInterface(java.lang.String);
diff --git a/core/java/android/text/StaticLayout.java b/core/java/android/text/StaticLayout.java
index 967e80c..0d35f9c 100644
--- a/core/java/android/text/StaticLayout.java
+++ b/core/java/android/text/StaticLayout.java
@@ -540,7 +540,7 @@
                 while (breakIndex < breakCount && paraStart + breaks[breakIndex] <= spanEnd) {
                     int endPos = paraStart + breaks[breakIndex];
 
-                    boolean moreChars = (endPos < paraEnd); // XXX is this the right way to calculate this?
+                    boolean moreChars = (endPos < bufEnd);
 
                     v = out(source, here, endPos,
                             fmAscent, fmDescent, fmTop, fmBottom,
diff --git a/core/java/android/view/ThreadedRenderer.java b/core/java/android/view/ThreadedRenderer.java
index 69b4c47..51fefe9 100644
--- a/core/java/android/view/ThreadedRenderer.java
+++ b/core/java/android/view/ThreadedRenderer.java
@@ -102,7 +102,6 @@
     private final float mLightRadius;
     private final int mAmbientShadowAlpha;
     private final int mSpotShadowAlpha;
-    private final float mDensity;
 
     private long mNativeProxy;
     private boolean mInitialized = false;
@@ -119,7 +118,6 @@
                 (int) (255 * a.getFloat(R.styleable.Lighting_ambientShadowAlpha, 0) + 0.5f);
         mSpotShadowAlpha = (int) (255 * a.getFloat(R.styleable.Lighting_spotShadowAlpha, 0) + 0.5f);
         a.recycle();
-        mDensity = context.getResources().getDisplayMetrics().density;
 
         long rootNodePtr = nCreateRootRenderNode();
         mRootNode = RenderNode.adopt(rootNodePtr);
@@ -128,10 +126,6 @@
 
         AtlasInitializer.sInstance.init(context, mNativeProxy);
 
-        // Setup timing
-        mChoreographer = Choreographer.getInstance();
-        nSetFrameInterval(mNativeProxy, mChoreographer.getFrameIntervalNanos());
-
         loadSystemProperties();
     }
 
@@ -224,7 +218,7 @@
         mRootNode.setLeftTopRightBottom(-mInsetLeft, -mInsetTop, mSurfaceWidth, mSurfaceHeight);
         nSetup(mNativeProxy, mSurfaceWidth, mSurfaceHeight,
                 lightX, mLightY, mLightZ, mLightRadius,
-                mAmbientShadowAlpha, mSpotShadowAlpha, mDensity);
+                mAmbientShadowAlpha, mSpotShadowAlpha);
     }
 
     @Override
@@ -379,6 +373,7 @@
 
     @Override
     void setName(String name) {
+        nSetName(mNativeProxy, name);
     }
 
     @Override
@@ -487,15 +482,15 @@
     private static native long nCreateProxy(boolean translucent, long rootRenderNode);
     private static native void nDeleteProxy(long nativeProxy);
 
-    private static native void nSetFrameInterval(long nativeProxy, long frameIntervalNanos);
     private static native boolean nLoadSystemProperties(long nativeProxy);
+    private static native void nSetName(long nativeProxy, String name);
 
     private static native boolean nInitialize(long nativeProxy, Surface window);
     private static native void nUpdateSurface(long nativeProxy, Surface window);
     private static native boolean nPauseSurface(long nativeProxy, Surface window);
     private static native void nSetup(long nativeProxy, int width, int height,
             float lightX, float lightY, float lightZ, float lightRadius,
-            int ambientShadowAlpha, int spotShadowAlpha, float density);
+            int ambientShadowAlpha, int spotShadowAlpha);
     private static native void nSetOpaque(long nativeProxy, boolean opaque);
     private static native int nSyncAndDrawFrame(long nativeProxy, long[] frameInfo, int size);
     private static native void nDestroy(long nativeProxy);
diff --git a/core/java/android/webkit/WebMessage.java b/core/java/android/webkit/WebMessage.java
new file mode 100644
index 0000000..7683a40
--- /dev/null
+++ b/core/java/android/webkit/WebMessage.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.webkit;
+
+/**
+ * The Java representation of the HTML5 PostMessage event. See
+ * https://html.spec.whatwg.org/multipage/comms.html#the-messageevent-interfaces
+ * for definition of a MessageEvent in HTML5.
+ *
+ */
+public class WebMessage {
+
+    private String mData;
+    private WebMessagePort[] mPorts;
+
+    /**
+     * Creates a WebMessage.
+     * @param data  the data of the message.
+     */
+    public WebMessage(String data) {
+        mData = data;
+    }
+
+    /**
+     * Creates a WebMessage.
+     * @param data  the data of the message.
+     * @param ports  the ports that are sent with the message.
+     */
+    public WebMessage(String data, WebMessagePort[] ports) {
+        mData = data;
+        mPorts = ports;
+    }
+
+    /**
+     * Returns the data of the message.
+     */
+    public String getData() {
+        return mData;
+    }
+
+    /**
+     * Returns the ports that are sent with the message, or null if no port
+     * is sent.
+     */
+    public WebMessagePort[] getPorts() {
+        return mPorts;
+    }
+}
diff --git a/core/java/android/webkit/WebMessagePort.java b/core/java/android/webkit/WebMessagePort.java
new file mode 100644
index 0000000..eab27bd
--- /dev/null
+++ b/core/java/android/webkit/WebMessagePort.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.webkit;
+
+import android.os.Handler;
+
+/**
+ * The Java representation of the HTML5 Message Port. See
+ * https://html.spec.whatwg.org/multipage/comms.html#messageport
+ * for definition of MessagePort in HTML5.
+ *
+ * A Message port represents one endpoint of a Message Channel. In Android
+ * webview, there is no separate Message Channel object. When a message channel
+ * is created, both ports are tangled to each other and started, and then
+ * returned in a MessagePort array, see {@link WebView#createWebMessageChannel}
+ * for creating a message channel.
+ *
+ * When a message port is first created or received via transfer, it does not
+ * have a WebMessageCallback to receive web messages. The messages are queued until
+ * a WebMessageCallback is set.
+ */
+public abstract class WebMessagePort {
+
+    /**
+     * The listener for handling MessagePort events. The message callback
+     * methods are called on the main thread. If the embedder application
+     * wants to receive the messages on a different thread, it can do this
+     * by passing a Handler in
+     *  {@link WebMessagePort#setWebMessageCallback(WebMessageCallback, Handler)}.
+     * In the latter case, the application should be extra careful for thread safety
+     * since WebMessagePort methods should be called on main thread.
+     */
+    public static abstract class WebMessageCallback {
+        /**
+         * Message callback for receiving onMessage events.
+         *
+         * @param port  the WebMessagePort that the message is destined for
+         * @param message  the message from the entangled port.
+         */
+        public void onMessage(WebMessagePort port, WebMessage message) { }
+    }
+
+    /**
+     * Post a WebMessage to the entangled port.
+     *
+     * @param message  the message from Java to JS.
+     *
+     * @throws IllegalStateException If message port is already transferred or closed.
+     */
+    public abstract void postMessage(WebMessage message);
+
+    /**
+     * Close the message port and free any resources associated with it.
+     */
+    public abstract void close();
+
+    /**
+     * Sets a callback to receive message events on the main thread.
+     *
+     * @param callback  the message callback.
+     */
+    public abstract void setWebMessageCallback(WebMessageCallback callback);
+
+    /**
+     * Sets a callback to receive message events on the handler that is provided
+     * by the application.
+     *
+     * @param callback  the message callback.
+     * @param handler   the handler to receive the message messages.
+     */
+    public abstract void setWebMessageCallback(WebMessageCallback callback, Handler handler);
+}
diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index 01a506c..67ad642 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -27,6 +27,7 @@
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.net.http.SslCertificate;
+import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Looper;
@@ -1825,6 +1826,37 @@
     }
 
     /**
+     * Creates a message channel to communicate with JS and returns the message
+     * ports that represent the endpoints of this message channel. The HTML5 message
+     * channel functionality is described here:
+     * https://html.spec.whatwg.org/multipage/comms.html#messagechannel
+     *
+     * The returned message channels are entangled and already in started state.
+     *
+     * @return the two message ports that form the message channel.
+     */
+    public WebMessagePort[] createWebMessageChannel() {
+        checkThread();
+        if (TRACE) Log.d(LOGTAG, "createWebMessageChannel");
+        return mProvider.createWebMessageChannel();
+    }
+
+    /**
+     * Post a message to main frame. The embedded application can restrict the
+     * messages to a certain target origin. See
+     *    https://html.spec.whatwg.org/multipage/comms.html#posting-messages
+     * for how target origin can be used.
+     *
+     * @param message the WebMessage
+     * @param targetOrigin the target origin.
+     */
+    public void postMessageToMainFrame(WebMessage message, Uri targetOrigin) {
+        checkThread();
+        if (TRACE) Log.d(LOGTAG, "postMessageToMainFrame. TargetOrigin=" + targetOrigin);
+        mProvider.postMessageToMainFrame(message, targetOrigin);
+    }
+
+    /**
      * Gets the WebSettings object used to control the settings for this
      * WebView.
      *
diff --git a/core/java/android/webkit/WebViewProvider.java b/core/java/android/webkit/WebViewProvider.java
index 379a732..0cdb875 100644
--- a/core/java/android/webkit/WebViewProvider.java
+++ b/core/java/android/webkit/WebViewProvider.java
@@ -25,6 +25,7 @@
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.net.http.SslCertificate;
+import android.net.Uri;
 import android.os.Bundle;
 import android.os.Message;
 import android.print.PrintDocumentAdapter;
@@ -227,6 +228,10 @@
 
     public void removeJavascriptInterface(String interfaceName);
 
+    public WebMessagePort[] createWebMessageChannel();
+
+    public void postMessageToMainFrame(WebMessage message, Uri targetOrigin);
+
     public WebSettings getSettings();
 
     public void setMapTrackballToArrowKeys(boolean setMap);
diff --git a/core/java/android/widget/PopupWindow.java b/core/java/android/widget/PopupWindow.java
index 399f4c5..f676254 100644
--- a/core/java/android/widget/PopupWindow.java
+++ b/core/java/android/widget/PopupWindow.java
@@ -29,6 +29,8 @@
 import android.os.IBinder;
 import android.transition.Transition;
 import android.transition.Transition.EpicenterCallback;
+import android.transition.Transition.TransitionListener;
+import android.transition.Transition.TransitionListenerAdapter;
 import android.transition.TransitionInflater;
 import android.transition.TransitionManager;
 import android.transition.TransitionSet;
@@ -39,12 +41,13 @@
 import android.view.View;
 import android.view.View.OnTouchListener;
 import android.view.ViewGroup;
+import android.view.ViewParent;
 import android.view.ViewTreeObserver;
+import android.view.ViewTreeObserver.OnGlobalLayoutListener;
 import android.view.ViewTreeObserver.OnScrollChangedListener;
 import android.view.WindowManager;
 
 import java.lang.ref.WeakReference;
-import java.util.List;
 
 /**
  * <p>A popup window that can be used to display an arbitrary view. The popup
@@ -96,14 +99,12 @@
     private WindowManager mWindowManager;
 
     private boolean mIsShowing;
+    private boolean mIsTransitioningToDismiss;
     private boolean mIsDropdown;
 
     /** View that handles event dispatch and content transitions. */
     private PopupDecorView mDecorView;
 
-    /** View that holds the popup background. May be the content view. */
-    private View mBackgroundView;
-
     /** The contents of the popup. */
     private View mContentView;
 
@@ -1183,23 +1184,30 @@
                     + "calling setContentView() before attempting to show the popup.");
         }
 
-        // When a background is available, we embed the content view within
-        // another view that owns the background drawable.
-        if (mBackground != null) {
-            mBackgroundView = createBackgroundView(mContentView);
-            mBackgroundView.setBackground(mBackground);
-        } else {
-            mBackgroundView = mContentView;
+        // The old decor view may be transitioning out. Make sure it finishes
+        // and cleans up before we try to create another one.
+        if (mDecorView != null) {
+            mDecorView.cancelTransitions();
         }
 
-        mDecorView = createDecorView(mBackgroundView);
+        // When a background is available, we embed the content view within
+        // another view that owns the background drawable.
+        final View backgroundView;
+        if (mBackground != null) {
+            backgroundView = createBackgroundView(mContentView);
+            backgroundView.setBackground(mBackground);
+        } else {
+            backgroundView = mContentView;
+        }
+
+        mDecorView = createDecorView(backgroundView);
 
         // The background owner should be elevated so that it casts a shadow.
-        mBackgroundView.setElevation(mElevation);
+        backgroundView.setElevation(mElevation);
 
         // We may wrap that in another view, so we'll need to manually specify
         // the surface insets.
-        final int surfaceInset = (int) Math.ceil(mBackgroundView.getZ() * 2);
+        final int surfaceInset = (int) Math.ceil(backgroundView.getZ() * 2);
         p.surfaceInsets.set(surfaceInset, surfaceInset, surfaceInset, surfaceInset);
         p.hasManualSurfaceInsets = true;
 
@@ -1268,26 +1276,13 @@
             p.packageName = mContext.getPackageName();
         }
 
-        final View rootView = mContentView.getRootView();
-        rootView.setFitsSystemWindows(mLayoutInsetDecor);
+        final PopupDecorView decorView = mDecorView;
+        decorView.setFitsSystemWindows(mLayoutInsetDecor);
+        decorView.requestEnterTransition(mEnterTransition);
+
         setLayoutDirectionFromAnchor();
 
-        mWindowManager.addView(rootView, p);
-
-        // Postpone enter transition until the scene root has been laid out.
-        if (mEnterTransition != null) {
-            mEnterTransition.addTarget(mBackgroundView);
-            mEnterTransition.addListener(new Transition.TransitionListenerAdapter() {
-                @Override
-                public void onTransitionEnd(Transition transition) {
-                    transition.removeListener(this);
-                    transition.removeTarget(mBackgroundView);
-                }
-            });
-
-            mDecorView.getViewTreeObserver().addOnGlobalLayoutListener(
-                    new PostLayoutTransitionListener(mDecorView, mEnterTransition));
-        }
+        mWindowManager.addView(decorView, p);
     }
 
     private void setLayoutDirectionFromAnchor() {
@@ -1591,35 +1586,38 @@
      * @see #showAsDropDown(android.view.View)
      */
     public void dismiss() {
-        if (!isShowing()) {
+        if (!isShowing() || mIsTransitioningToDismiss) {
             return;
         }
 
+        final PopupDecorView decorView = mDecorView;
+        final View contentView = mContentView;
+
+        final ViewGroup contentHolder;
+        final ViewParent contentParent = contentView.getParent();
+        if (contentParent instanceof ViewGroup) {
+            contentHolder = ((ViewGroup) contentParent);
+        } else {
+            contentHolder = null;
+        }
+
+        // Ensure any ongoing or pending transitions are canceled.
+        decorView.cancelTransitions();
+
         unregisterForScrollChanged();
 
         mIsShowing = false;
+        mIsTransitioningToDismiss = true;
 
-        if (mExitTransition != null) {
-            // Cache the content view, since it may change without notice.
-            final View contentView = mContentView;
-
-            mExitTransition.addTarget(mBackgroundView);
-            mExitTransition.addListener(new Transition.TransitionListenerAdapter() {
+        if (mExitTransition != null && decorView.isLaidOut()) {
+            decorView.startExitTransition(mExitTransition, new TransitionListenerAdapter() {
                 @Override
                 public void onTransitionEnd(Transition transition) {
-                    transition.removeListener(this);
-                    transition.removeTarget(mBackgroundView);
-
-                    dismissImmediate(contentView);
+                    dismissImmediate(decorView, contentHolder, contentView);
                 }
             });
-
-            TransitionManager.beginDelayedTransition(mDecorView, mExitTransition);
-
-            // Transition to invisible.
-            mBackgroundView.setVisibility(View.INVISIBLE);
         } else {
-            dismissImmediate(mContentView);
+            dismissImmediate(decorView, contentHolder, contentView);
         }
 
         if (mOnDismissListener != null) {
@@ -1631,24 +1629,22 @@
      * Removes the popup from the window manager and tears down the supporting
      * view hierarchy, if necessary.
      */
-    private void dismissImmediate(View contentView) {
-        if (mDecorView == null || mBackgroundView == null) {
-            throw new RuntimeException("Popup window already dismissed");
+    private void dismissImmediate(View decorView, ViewGroup contentHolder, View contentView) {
+        // If this method gets called and the decor view doesn't have a parent,
+        // then it was either never added or was already removed. That should
+        // never happen, but it's worth checking to avoid potential crashes.
+        if (decorView.getParent() != null) {
+            mWindowManager.removeViewImmediate(decorView);
         }
 
-        try {
-            if (mDecorView.isAttachedToWindow()) {
-                mWindowManager.removeViewImmediate(mDecorView);
-            }
-        } finally {
-            mDecorView.removeView(mBackgroundView);
-            mDecorView = null;
-
-            if (mBackgroundView != contentView) {
-                ((ViewGroup) mBackgroundView).removeView(contentView);
-            }
-            mBackgroundView = null;
+        if (contentHolder != null) {
+            contentHolder.removeView(contentView);
         }
+
+        // This needs to stay until after all transitions have ended since we
+        // need the reference to cancel transitions in preparePopup().
+        mDecorView = null;
+        mIsTransitioningToDismiss = false;
     }
 
     /**
@@ -1909,47 +1905,9 @@
         mAnchoredGravity = gravity;
     }
 
-    /**
-     * Layout listener used to run a transition immediately after a view is
-     * laid out. Forces the view to transition from invisible to visible.
-     */
-    private static class PostLayoutTransitionListener implements
-            ViewTreeObserver.OnGlobalLayoutListener {
-        private final ViewGroup mSceneRoot;
-        private final Transition mTransition;
-
-        public PostLayoutTransitionListener(ViewGroup sceneRoot, Transition transition) {
-            mSceneRoot = sceneRoot;
-            mTransition = transition;
-        }
-
-        @Override
-        public void onGlobalLayout() {
-            final ViewTreeObserver observer = mSceneRoot.getViewTreeObserver();
-            if (observer == null) {
-                // View has been detached.
-                return;
-            }
-
-            observer.removeOnGlobalLayoutListener(this);
-
-            // Set all targets to be initially invisible.
-            final List<View> targets = mTransition.getTargets();
-            final int N = targets.size();
-            for (int i = 0; i < N; i++) {
-                targets.get(i).setVisibility(View.INVISIBLE);
-            }
-
-            TransitionManager.beginDelayedTransition(mSceneRoot, mTransition);
-
-            // Transition targets to visible.
-            for (int i = 0; i < N; i++) {
-                targets.get(i).setVisibility(View.VISIBLE);
-            }
-        }
-    }
-
     private class PopupDecorView extends FrameLayout {
+        private TransitionListenerAdapter mPendingExitListener;
+
         public PopupDecorView(Context context) {
             super(context);
         }
@@ -2004,6 +1962,100 @@
                 return super.onTouchEvent(event);
             }
         }
+
+        /**
+         * Requests that an enter transition run after the next layout pass.
+         */
+        public void requestEnterTransition(Transition transition) {
+            final ViewTreeObserver observer = getViewTreeObserver();
+            if (observer != null && transition != null) {
+                final Transition enterTransition = transition.clone();
+
+                // Postpone the enter transition after the first layout pass.
+                observer.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
+                    @Override
+                    public void onGlobalLayout() {
+                        final ViewTreeObserver observer = getViewTreeObserver();
+                        if (observer != null) {
+                            observer.removeOnGlobalLayoutListener(this);
+                        }
+
+                        startEnterTransition(enterTransition);
+                    }
+                });
+            }
+        }
+
+        /**
+         * Starts the pending enter transition, if one is set.
+         */
+        private void startEnterTransition(Transition enterTransition) {
+            final int count = getChildCount();
+            for (int i = 0; i < count; i++) {
+                final View child = getChildAt(i);
+                enterTransition.addTarget(child);
+                child.setVisibility(View.INVISIBLE);
+            }
+
+            TransitionManager.beginDelayedTransition(this, enterTransition);
+
+            for (int i = 0; i < count; i++) {
+                final View child = getChildAt(i);
+                child.setVisibility(View.VISIBLE);
+            }
+        }
+
+        /**
+         * Starts an exit transition immediately.
+         * <p>
+         * <strong>Note:</strong> The transition listener is guaranteed to have
+         * its {@code onTransitionEnd} method called even if the transition
+         * never starts; however, it may be called with a {@code null} argument.
+         */
+        public void startExitTransition(Transition transition, final TransitionListener listener) {
+            if (transition == null) {
+                return;
+            }
+
+            // The exit listener MUST be called for cleanup, even if the
+            // transition never starts or ends. Stash it for later.
+            mPendingExitListener = new TransitionListenerAdapter() {
+                @Override
+                public void onTransitionEnd(Transition transition) {
+                    listener.onTransitionEnd(transition);
+
+                    // The listener was called. Our job here is done.
+                    mPendingExitListener = null;
+                }
+            };
+
+            final Transition exitTransition = transition.clone();
+            exitTransition.addListener(mPendingExitListener);
+
+            final int count = getChildCount();
+            for (int i = 0; i < count; i++) {
+                final View child = getChildAt(i);
+                exitTransition.addTarget(child);
+            }
+
+            TransitionManager.beginDelayedTransition(this, exitTransition);
+
+            for (int i = 0; i < count; i++) {
+                final View child = getChildAt(i);
+                child.setVisibility(View.INVISIBLE);
+            }
+        }
+
+        /**
+         * Cancels all pending or current transitions.
+         */
+        public void cancelTransitions() {
+            TransitionManager.endTransitions(this);
+
+            if (mPendingExitListener != null) {
+                mPendingExitListener.onTransitionEnd(null);
+            }
+        }
     }
 
     private class PopupBackgroundView extends FrameLayout {
diff --git a/core/java/android/widget/SpellChecker.java b/core/java/android/widget/SpellChecker.java
index 3592687..e7031fe 100644
--- a/core/java/android/widget/SpellChecker.java
+++ b/core/java/android/widget/SpellChecker.java
@@ -727,14 +727,10 @@
                 }
             }
 
-            if (scheduleOtherSpellCheck && wordStart <= end) {
+            if (scheduleOtherSpellCheck && wordStart != BreakIterator.DONE && wordStart <= end) {
                 // Update range span: start new spell check from last wordStart
                 setRangeSpan(editable, wordStart, end);
             } else {
-                if (DBG && scheduleOtherSpellCheck) {
-                    Log.w(TAG, "Trying to schedule spellcheck for invalid region, from "
-                            + wordStart + " to " + end);
-                }
                 removeRangeSpan(editable);
             }
 
diff --git a/core/java/com/android/internal/view/menu/MenuPopupHelper.java b/core/java/com/android/internal/view/menu/MenuPopupHelper.java
index 2b20b38..7d45071 100644
--- a/core/java/com/android/internal/view/menu/MenuPopupHelper.java
+++ b/core/java/com/android/internal/view/menu/MenuPopupHelper.java
@@ -43,8 +43,6 @@
 public class MenuPopupHelper implements AdapterView.OnItemClickListener, View.OnKeyListener,
         ViewTreeObserver.OnGlobalLayoutListener, PopupWindow.OnDismissListener,
         View.OnAttachStateChangeListener, MenuPresenter {
-    private static final String TAG = "MenuPopupHelper";
-
     static final int ITEM_LAYOUT = com.android.internal.R.layout.popup_menu_item_layout;
 
     private final Context mContext;
@@ -132,7 +130,18 @@
         return mPopup;
     }
 
+    /**
+     * Attempts to show the popup anchored to the view specified by
+     * {@link #setAnchorView(View)}.
+     *
+     * @return {@code true} if the popup was shown or was already showing prior
+     *         to calling this method, {@code false} otherwise
+     */
     public boolean tryShow() {
+        if (isShowing()) {
+            return true;
+        }
+
         mPopup = new ListPopupWindow(mContext, null, mPopupStyleAttr, mPopupStyleRes);
         mPopup.setOnDismissListener(this);
         mPopup.setOnItemClickListener(this);
@@ -169,6 +178,7 @@
         }
     }
 
+    @Override
     public void onDismiss() {
         mPopup = null;
         mMenu.close();
@@ -190,6 +200,7 @@
         adapter.mAdapterMenu.performItemAction(adapter.getItem(position), 0);
     }
 
+    @Override
     public boolean onKey(View v, int keyCode, KeyEvent event) {
         if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_MENU) {
             dismiss();
diff --git a/core/jni/android_view_Surface.cpp b/core/jni/android_view_Surface.cpp
index 39064ed..fff8604 100644
--- a/core/jni/android_view_Surface.cpp
+++ b/core/jni/android_view_Surface.cpp
@@ -489,7 +489,7 @@
     proxy->initialize(surface);
     // Shadows can't be used via this interface, so just set the light source
     // to all 0s. (and width & height are unused, TODO remove them)
-    proxy->setup(0, 0, (Vector3){0, 0, 0}, 0, 0, 0, 1.0f);
+    proxy->setup(0, 0, (Vector3){0, 0, 0}, 0, 0, 0);
     return (jlong) proxy;
 }
 
diff --git a/core/jni/android_view_ThreadedRenderer.cpp b/core/jni/android_view_ThreadedRenderer.cpp
index ad93301..3d9a9ed 100644
--- a/core/jni/android_view_ThreadedRenderer.cpp
+++ b/core/jni/android_view_ThreadedRenderer.cpp
@@ -239,18 +239,20 @@
     delete proxy;
 }
 
-static void android_view_ThreadedRenderer_setFrameInterval(JNIEnv* env, jobject clazz,
-        jlong proxyPtr, jlong frameIntervalNanos) {
-    RenderProxy* proxy = reinterpret_cast<RenderProxy*>(proxyPtr);
-    proxy->setFrameInterval(frameIntervalNanos);
-}
-
 static jboolean android_view_ThreadedRenderer_loadSystemProperties(JNIEnv* env, jobject clazz,
         jlong proxyPtr) {
     RenderProxy* proxy = reinterpret_cast<RenderProxy*>(proxyPtr);
     return proxy->loadSystemProperties();
 }
 
+static void android_view_ThreadedRenderer_setName(JNIEnv* env, jobject clazz,
+        jlong proxyPtr, jstring jname) {
+    RenderProxy* proxy = reinterpret_cast<RenderProxy*>(proxyPtr);
+    const char* name = env->GetStringUTFChars(jname, NULL);
+    proxy->setName(name);
+    env->ReleaseStringUTFChars(jname, name);
+}
+
 static jboolean android_view_ThreadedRenderer_initialize(JNIEnv* env, jobject clazz,
         jlong proxyPtr, jobject jsurface) {
     RenderProxy* proxy = reinterpret_cast<RenderProxy*>(proxyPtr);
@@ -284,7 +286,7 @@
         jint ambientShadowAlpha, jint spotShadowAlpha, jfloat density) {
     RenderProxy* proxy = reinterpret_cast<RenderProxy*>(proxyPtr);
     proxy->setup(width, height, (Vector3){lightX, lightY, lightZ}, lightRadius,
-            ambientShadowAlpha, spotShadowAlpha, density);
+            ambientShadowAlpha, spotShadowAlpha);
 }
 
 static void android_view_ThreadedRenderer_setOpaque(JNIEnv* env, jobject clazz,
@@ -424,12 +426,12 @@
     { "nCreateRootRenderNode", "()J", (void*) android_view_ThreadedRenderer_createRootRenderNode },
     { "nCreateProxy", "(ZJ)J", (void*) android_view_ThreadedRenderer_createProxy },
     { "nDeleteProxy", "(J)V", (void*) android_view_ThreadedRenderer_deleteProxy },
-    { "nSetFrameInterval", "(JJ)V", (void*) android_view_ThreadedRenderer_setFrameInterval },
     { "nLoadSystemProperties", "(J)Z", (void*) android_view_ThreadedRenderer_loadSystemProperties },
+    { "nSetName", "(JLjava/lang/String;)V", (void*) android_view_ThreadedRenderer_setName },
     { "nInitialize", "(JLandroid/view/Surface;)Z", (void*) android_view_ThreadedRenderer_initialize },
     { "nUpdateSurface", "(JLandroid/view/Surface;)V", (void*) android_view_ThreadedRenderer_updateSurface },
     { "nPauseSurface", "(JLandroid/view/Surface;)Z", (void*) android_view_ThreadedRenderer_pauseSurface },
-    { "nSetup", "(JIIFFFFIIF)V", (void*) android_view_ThreadedRenderer_setup },
+    { "nSetup", "(JIIFFFFII)V", (void*) android_view_ThreadedRenderer_setup },
     { "nSetOpaque", "(JZ)V", (void*) android_view_ThreadedRenderer_setOpaque },
     { "nSyncAndDrawFrame", "(J[JI)I", (void*) android_view_ThreadedRenderer_syncAndDrawFrame },
     { "nDestroy", "(J)V", (void*) android_view_ThreadedRenderer_destroy },
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 30ce271..15797dd 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -31,8 +31,10 @@
         <attr name="colorForeground" format="color" />
         <!-- Default color of foreground imagery on an inverted background. -->
         <attr name="colorForegroundInverse" format="color" />
-        <!-- Color that matches (as closely as possible) the window background. -->
+        <!-- Default color of background imagery, ex. full-screen windows. -->
         <attr name="colorBackground" format="color" />
+        <!-- Default color of background imagery for floating components, ex. dialogs, popups, and cards. -->
+        <attr name="colorBackgroundFloating" format="color" />
         <!-- This is a hint for a solid color that can be used for caching
              rendered views.  This should be the color of the background when
              there is a solid background color; it should be null when the
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 16f0676..da911b2 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -2642,15 +2642,11 @@
   <public type="style" name="Theme.Material.Light.LightStatusBar" />
   <public type="style" name="ThemeOverlay.Material.Dialog" />
 
-  <!-- Context menu ID for the "Paste as plain text" menu item to to copy the current contents
-          of the clipboard into the text view without formatting. -->
   <public type="id" name="pasteAsPlainText" />
-  <!-- Context menu ID for the "Undo" menu item to undo the last text edit operation. -->
   <public type="id" name="undo" />
-  <!-- Context menu ID for the "Redo" menu item to redo the last text edit operation. -->
   <public type="id" name="redo" />
-
-  <!-- TextView attribute to control undo behavior. -->
   <public type="attr" name="allowUndo" />
 
+  <public type="attr" name="colorBackgroundFloating" />
+
 </resources>
diff --git a/core/res/res/values/themes.xml b/core/res/res/values/themes.xml
index 4ba6c0b..9e87b4d 100644
--- a/core/res/res/values/themes.xml
+++ b/core/res/res/values/themes.xml
@@ -45,6 +45,7 @@
         <item name="colorForeground">@color/bright_foreground_dark</item>
         <item name="colorForegroundInverse">@color/bright_foreground_dark_inverse</item>
         <item name="colorBackground">@color/background_dark</item>
+        <item name="colorBackgroundFloating">?attr/colorBackground</item>
         <item name="colorBackgroundCacheHint">?attr/colorBackground</item>
 
         <item name="colorPressedHighlight">@color/legacy_pressed_highlight</item>
diff --git a/core/res/res/values/themes_holo.xml b/core/res/res/values/themes_holo.xml
index c30b3d5..701d0ef 100644
--- a/core/res/res/values/themes_holo.xml
+++ b/core/res/res/values/themes_holo.xml
@@ -65,6 +65,7 @@
         <item name="colorForeground">@color/bright_foreground_holo_dark</item>
         <item name="colorForegroundInverse">@color/bright_foreground_inverse_holo_dark</item>
         <item name="colorBackground">@color/background_holo_dark</item>
+        <item name="colorBackgroundFloating">@color/background_holo_dark</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_holo_dark</item>
         <item name="disabledAlpha">0.5</item>
         <item name="backgroundDimAmount">0.6</item>
@@ -404,6 +405,7 @@
         <item name="colorForeground">@color/bright_foreground_holo_light</item>
         <item name="colorForegroundInverse">@color/bright_foreground_inverse_holo_light</item>
         <item name="colorBackground">@color/background_holo_light</item>
+        <item name="colorBackgroundFloating">@color/background_holo_light</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_holo_light</item>
         <item name="disabledAlpha">0.5</item>
         <item name="backgroundDimAmount">0.6</item>
diff --git a/core/res/res/values/themes_material.xml b/core/res/res/values/themes_material.xml
index a610d07..38cfecd 100644
--- a/core/res/res/values/themes_material.xml
+++ b/core/res/res/values/themes_material.xml
@@ -45,6 +45,7 @@
         <item name="colorForeground">@color/foreground_material_dark</item>
         <item name="colorForegroundInverse">@color/foreground_material_light</item>
         <item name="colorBackground">@color/background_material_dark</item>
+        <item name="colorBackgroundFloating">@color/background_floating_material_dark</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_material_dark</item>
         <item name="disabledAlpha">@dimen/disabled_alpha_material_dark</item>
         <item name="backgroundDimAmount">0.6</item>
@@ -398,6 +399,7 @@
         <item name="colorForeground">@color/foreground_material_light</item>
         <item name="colorForegroundInverse">@color/foreground_material_dark</item>
         <item name="colorBackground">@color/background_material_light</item>
+        <item name="colorBackgroundFloating">@color/background_floating_material_light</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_material_light</item>
         <item name="disabledAlpha">@dimen/disabled_alpha_material_light</item>
         <item name="backgroundDimAmount">0.6</item>
@@ -770,6 +772,7 @@
         <item name="colorForeground">@color/foreground_material_light</item>
         <item name="colorForegroundInverse">@color/foreground_material_dark</item>
         <item name="colorBackground">@color/background_material_light</item>
+        <item name="colorBackgroundFloating">@color/background_floating_material_light</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_material_light</item>
 
         <item name="textColorPrimary">@color/primary_text_material_light</item>
@@ -806,6 +809,7 @@
         <item name="colorForeground">@color/foreground_material_dark</item>
         <item name="colorForegroundInverse">@color/foreground_material_light</item>
         <item name="colorBackground">@color/background_material_dark</item>
+        <item name="colorBackgroundFloating">@color/background_floating_material_dark</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_material_dark</item>
 
         <item name="textColorPrimary">@color/primary_text_material_dark</item>
@@ -852,7 +856,6 @@
 
     <!-- Theme overlay that overrides window properties to display as a dialog. -->
     <style name="ThemeOverlay.Material.Dialog">
-        <item name="colorBackground">@color/background_floating_material_light</item>
         <item name="colorBackgroundCacheHint">@null</item>
 
         <item name="windowFrame">@null</item>
@@ -1044,7 +1047,7 @@
     <eat-comment />
 
     <style name="Theme.Material.BaseDialog">
-        <item name="colorBackground">@color/background_floating_material_dark</item>
+        <item name="colorBackground">?attr/colorBackgroundFloating</item>
 
         <item name="windowFrame">@null</item>
         <item name="windowTitleStyle">@style/DialogWindowTitle.Material</item>
@@ -1155,7 +1158,7 @@
     <!-- Light material dialog themes -->
 
     <style name="Theme.Material.Light.BaseDialog">
-        <item name="colorBackground">@color/background_floating_material_light</item>
+        <item name="colorBackground">?attr/colorBackgroundFloating</item>
 
         <item name="windowFrame">@null</item>
         <item name="windowTitleStyle">@style/DialogWindowTitle.Material.Light</item>
diff --git a/libs/hwui/JankTracker.cpp b/libs/hwui/JankTracker.cpp
index 46b0945..7df61f27 100644
--- a/libs/hwui/JankTracker.cpp
+++ b/libs/hwui/JankTracker.cpp
@@ -97,8 +97,8 @@
     int64_t totalDuration =
             frame[FrameInfoIndex::kFrameCompleted] - frame[FrameInfoIndex::kIntendedVsync];
     uint32_t framebucket = std::min(
-            static_cast<typeof sizeof(mFrameCounts)>(ns2ms(totalDuration)),
-            sizeof(mFrameCounts) / sizeof(mFrameCounts[0]));
+            static_cast<typeof mFrameCounts.size()>(ns2ms(totalDuration)),
+            mFrameCounts.size());
     // Keep the fast path as fast as possible.
     if (CC_LIKELY(totalDuration < mFrameInterval)) {
         mFrameCounts[framebucket]++;
@@ -137,8 +137,8 @@
 }
 
 void JankTracker::reset() {
-    memset(mBuckets, 0, sizeof(mBuckets));
-    memset(mFrameCounts, 0, sizeof(mFrameCounts));
+    mBuckets.fill({0});
+    mFrameCounts.fill(0);
     mTotalFrameCount = 0;
     mJankFrameCount = 0;
 }
@@ -146,7 +146,7 @@
 uint32_t JankTracker::findPercentile(int percentile) {
     int pos = percentile * mTotalFrameCount / 100;
     int remaining = mTotalFrameCount - pos;
-    for (int i = sizeof(mFrameCounts) / sizeof(mFrameCounts[0]) - 1; i >= 0; i--) {
+    for (int i = mFrameCounts.size() - 1; i >= 0; i--) {
         remaining -= mFrameCounts[i];
         if (remaining <= 0) {
             return i;
diff --git a/libs/hwui/JankTracker.h b/libs/hwui/JankTracker.h
index 3d4929b..ae339ec 100644
--- a/libs/hwui/JankTracker.h
+++ b/libs/hwui/JankTracker.h
@@ -20,6 +20,7 @@
 #include "renderthread/TimeLord.h"
 #include "utils/RingBuffer.h"
 
+#include <array>
 #include <memory>
 
 namespace android {
@@ -56,9 +57,9 @@
 private:
     uint32_t findPercentile(int p);
 
-    JankBucket mBuckets[NUM_BUCKETS];
-    int64_t mThresholds[NUM_BUCKETS];
-    uint32_t mFrameCounts[128];
+    std::array<JankBucket, NUM_BUCKETS> mBuckets;
+    std::array<int64_t, NUM_BUCKETS> mThresholds;
+    std::array<uint32_t, 128> mFrameCounts;
 
     int64_t mFrameInterval;
     uint32_t mTotalFrameCount;
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index fcf6eb2..9456073 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -51,6 +51,7 @@
         , mRootRenderNode(rootRenderNode)
         , mCurrentFrameInfo(nullptr) {
     mRenderThread.renderState().registerCanvasContext(this);
+    mProfiler.setDensity(mRenderThread.mainDisplayInfo().density);
 }
 
 CanvasContext::~CanvasContext() {
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 9a60dc7..c3904c2 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -33,6 +33,7 @@
 #include <utils/Vector.h>
 
 #include <set>
+#include <string>
 
 namespace android {
 namespace uirenderer {
@@ -106,6 +107,9 @@
     void dumpFrames(int fd);
     void resetFrameStats();
 
+    void setName(const std::string&& name) { mName = name; }
+    const std::string& name() { return mName; }
+
 private:
     friend class RegisterFrameCallbackTask;
     // TODO: Replace with something better for layer & other GL object
@@ -139,6 +143,7 @@
     FrameInfo* mCurrentFrameInfo;
     // Ring buffer large enough for 1 second worth of frames
     RingBuffer<FrameInfo, 60> mFrames;
+    std::string mName;
 
     std::set<RenderNode*> mPrefetechedLayers;
 };
diff --git a/libs/hwui/renderthread/DrawFrameTask.cpp b/libs/hwui/renderthread/DrawFrameTask.cpp
index f48ee41..35391b2 100644
--- a/libs/hwui/renderthread/DrawFrameTask.cpp
+++ b/libs/hwui/renderthread/DrawFrameTask.cpp
@@ -34,7 +34,6 @@
 DrawFrameTask::DrawFrameTask()
         : mRenderThread(nullptr)
         , mContext(nullptr)
-        , mDensity(1.0f) // safe enough default
         , mSyncResult(kSync_OK) {
 }
 
@@ -84,7 +83,6 @@
 void DrawFrameTask::run() {
     ATRACE_NAME("DrawFrame");
 
-    mContext->profiler().setDensity(mDensity);
     mContext->profiler().startFrame();
 
     bool canUnblockUiThread;
diff --git a/libs/hwui/renderthread/DrawFrameTask.h b/libs/hwui/renderthread/DrawFrameTask.h
index 0e56bea..8039643 100644
--- a/libs/hwui/renderthread/DrawFrameTask.h
+++ b/libs/hwui/renderthread/DrawFrameTask.h
@@ -62,7 +62,6 @@
     void pushLayerUpdate(DeferredLayerUpdater* layer);
     void removeLayerUpdate(DeferredLayerUpdater* layer);
 
-    void setDensity(float density) { mDensity = density; }
     int drawFrame();
 
     int64_t* frameInfo() { return mFrameInfo; }
@@ -83,7 +82,6 @@
     /*********************************************
      *  Single frame data
      *********************************************/
-    float mDensity;
     std::vector< sp<DeferredLayerUpdater> > mLayers;
 
     int mSyncResult;
diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 0fa2f23..ea4216c 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -97,18 +97,6 @@
     }
 }
 
-CREATE_BRIDGE2(setFrameInterval, RenderThread* thread, nsecs_t frameIntervalNanos) {
-    args->thread->setFrameInterval(args->frameIntervalNanos);
-    return nullptr;
-}
-
-void RenderProxy::setFrameInterval(nsecs_t frameIntervalNanos) {
-    SETUP_TASK(setFrameInterval);
-    args->thread = &mRenderThread;
-    args->frameIntervalNanos = frameIntervalNanos;
-    post(task);
-}
-
 CREATE_BRIDGE2(setSwapBehavior, CanvasContext* context, SwapBehavior swapBehavior) {
     args->context->setSwapBehavior(args->swapBehavior);
     return nullptr;
@@ -138,6 +126,18 @@
     return (bool) postAndWait(task);
 }
 
+CREATE_BRIDGE2(setName, CanvasContext* context, const char* name) {
+    args->context->setName(std::string(args->name));
+    return nullptr;
+}
+
+void RenderProxy::setName(const char* name) {
+    SETUP_TASK(setName);
+    args->context = mContext;
+    args->name = name;
+    post(task);
+}
+
 CREATE_BRIDGE2(initialize, CanvasContext* context, ANativeWindow* window) {
     return (void*) args->context->initialize(args->window);
 }
@@ -181,8 +181,7 @@
 }
 
 void RenderProxy::setup(int width, int height, const Vector3& lightCenter, float lightRadius,
-        uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha, float density) {
-    mDrawFrameTask.setDensity(density);
+        uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) {
     SETUP_TASK(setup);
     args->context = mContext;
     args->width = width;
diff --git a/libs/hwui/renderthread/RenderProxy.h b/libs/hwui/renderthread/RenderProxy.h
index 19e73e5..43cbe07 100644
--- a/libs/hwui/renderthread/RenderProxy.h
+++ b/libs/hwui/renderthread/RenderProxy.h
@@ -62,16 +62,16 @@
     ANDROID_API RenderProxy(bool translucent, RenderNode* rootNode, IContextFactory* contextFactory);
     ANDROID_API virtual ~RenderProxy();
 
-    ANDROID_API void setFrameInterval(nsecs_t frameIntervalNanos);
     // Won't take effect until next EGLSurface creation
     ANDROID_API void setSwapBehavior(SwapBehavior swapBehavior);
     ANDROID_API bool loadSystemProperties();
+    ANDROID_API void setName(const char* name);
 
     ANDROID_API bool initialize(const sp<ANativeWindow>& window);
     ANDROID_API void updateSurface(const sp<ANativeWindow>& window);
     ANDROID_API bool pauseSurface(const sp<ANativeWindow>& window);
     ANDROID_API void setup(int width, int height, const Vector3& lightCenter, float lightRadius,
-            uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha, float density);
+            uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha);
     ANDROID_API void setOpaque(bool opaque);
     ANDROID_API int64_t* frameInfo();
     ANDROID_API int syncAndDrawFrame();
diff --git a/libs/hwui/renderthread/RenderThread.cpp b/libs/hwui/renderthread/RenderThread.cpp
index 2a8baa7..3ac2976 100644
--- a/libs/hwui/renderthread/RenderThread.cpp
+++ b/libs/hwui/renderthread/RenderThread.cpp
@@ -22,6 +22,8 @@
 #include "RenderProxy.h"
 
 #include <gui/DisplayEventReceiver.h>
+#include <gui/ISurfaceComposer.h>
+#include <gui/SurfaceComposerClient.h>
 #include <sys/resource.h>
 #include <utils/Log.h>
 
@@ -151,11 +153,6 @@
     LOG_ALWAYS_FATAL("Can't destroy the render thread");
 }
 
-void RenderThread::setFrameInterval(nsecs_t frameInterval) {
-    mTimeLord.setFrameInterval(frameInterval);
-    mJankTracker->setFrameInterval(frameInterval);
-}
-
 void RenderThread::initializeDisplayEventReceiver() {
     LOG_ALWAYS_FATAL_IF(mDisplayEventReceiver, "Initializing a second DisplayEventReceiver?");
     mDisplayEventReceiver = new DisplayEventReceiver();
@@ -169,10 +166,16 @@
 }
 
 void RenderThread::initThreadLocals() {
+    sp<IBinder> dtoken(SurfaceComposerClient::getBuiltInDisplay(
+            ISurfaceComposer::eDisplayIdMain));
+    status_t status = SurfaceComposerClient::getDisplayInfo(dtoken, &mDisplayInfo);
+    LOG_ALWAYS_FATAL_IF(status, "Failed to get display info\n");
+    nsecs_t frameIntervalNanos = static_cast<nsecs_t>(1000000000 / mDisplayInfo.fps);
+    mTimeLord.setFrameInterval(frameIntervalNanos);
     initializeDisplayEventReceiver();
     mEglManager = new EglManager(*this);
     mRenderState = new RenderState(*this);
-    mJankTracker = new JankTracker(mTimeLord.frameIntervalNanos());
+    mJankTracker = new JankTracker(frameIntervalNanos);
 }
 
 int RenderThread::displayEventReceiverCallback(int fd, int events, void* data) {
diff --git a/libs/hwui/renderthread/RenderThread.h b/libs/hwui/renderthread/RenderThread.h
index f169424..8096099 100644
--- a/libs/hwui/renderthread/RenderThread.h
+++ b/libs/hwui/renderthread/RenderThread.h
@@ -23,6 +23,7 @@
 #include "TimeLord.h"
 
 #include <cutils/compiler.h>
+#include <ui/DisplayInfo.h>
 #include <utils/Looper.h>
 #include <utils/Mutex.h>
 #include <utils/Singleton.h>
@@ -86,13 +87,13 @@
     // the next vsync. If it is not currently registered this does nothing.
     void pushBackFrameCallback(IFrameCallback* callback);
 
-    void setFrameInterval(nsecs_t frameInterval);
-
     TimeLord& timeLord() { return mTimeLord; }
     RenderState& renderState() { return *mRenderState; }
     EglManager& eglManager() { return *mEglManager; }
     JankTracker& jankTracker() { return *mJankTracker; }
 
+    const DisplayInfo& mainDisplayInfo() { return mDisplayInfo; }
+
 protected:
     virtual bool threadLoop() override;
 
@@ -122,6 +123,8 @@
     nsecs_t mNextWakeup;
     TaskQueue mQueue;
 
+    DisplayInfo mDisplayInfo;
+
     DisplayEventReceiver* mDisplayEventReceiver;
     bool mVsyncRequested;
     std::set<IFrameCallback*> mFrameCallbacks;
diff --git a/libs/hwui/tests/main.cpp b/libs/hwui/tests/main.cpp
index 0d1e63e..805989b 100644
--- a/libs/hwui/tests/main.cpp
+++ b/libs/hwui/tests/main.cpp
@@ -85,7 +85,7 @@
         proxy->initialize(surface);
         float lightX = width / 2.0;
         proxy->setup(width, height, (Vector3){lightX, dp(-200.0f), dp(800.0f)},
-                dp(800.0f), 255 * 0.075, 255 * 0.15, gDisplay.density);
+                dp(800.0f), 255 * 0.075, 255 * 0.15);
 
         android::uirenderer::Rect DUMMY;
 
diff --git a/media/java/android/media/midi/IMidiDeviceListener.aidl b/media/java/android/media/midi/IMidiDeviceListener.aidl
index 17d9bfd..31c66e3 100644
--- a/media/java/android/media/midi/IMidiDeviceListener.aidl
+++ b/media/java/android/media/midi/IMidiDeviceListener.aidl
@@ -17,10 +17,12 @@
 package android.media.midi;
 
 import android.media.midi.MidiDeviceInfo;
+import android.media.midi.MidiDeviceStatus;
 
 /** @hide */
 oneway interface IMidiDeviceListener
 {
     void onDeviceAdded(in MidiDeviceInfo device);
     void onDeviceRemoved(in MidiDeviceInfo device);
+    void onDeviceStatusChanged(in MidiDeviceStatus status);
 }
diff --git a/media/java/android/media/midi/IMidiDeviceServer.aidl b/media/java/android/media/midi/IMidiDeviceServer.aidl
index 3331aae..642078a 100644
--- a/media/java/android/media/midi/IMidiDeviceServer.aidl
+++ b/media/java/android/media/midi/IMidiDeviceServer.aidl
@@ -24,4 +24,7 @@
     ParcelFileDescriptor openInputPort(IBinder token, int portNumber);
     ParcelFileDescriptor openOutputPort(IBinder token, int portNumber);
     void closePort(IBinder token);
+
+    // connects the input port pfd to the specified output port
+    void connectPorts(IBinder token, in ParcelFileDescriptor pfd, int outputPortNumber);
 }
diff --git a/media/java/android/media/midi/IMidiManager.aidl b/media/java/android/media/midi/IMidiManager.aidl
index 617b03e..a3b40d6 100644
--- a/media/java/android/media/midi/IMidiManager.aidl
+++ b/media/java/android/media/midi/IMidiManager.aidl
@@ -19,6 +19,7 @@
 import android.media.midi.IMidiDeviceListener;
 import android.media.midi.IMidiDeviceServer;
 import android.media.midi.MidiDeviceInfo;
+import android.media.midi.MidiDeviceStatus;
 import android.os.Bundle;
 import android.os.IBinder;
 
@@ -44,4 +45,11 @@
     // used by MidiDeviceService to access the MidiDeviceInfo that was created based on its
     // manifest's meta-data
     MidiDeviceInfo getServiceDeviceInfo(String packageName, String className);
+
+    // used for client's to retrieve a device's MidiDeviceStatus
+    MidiDeviceStatus getDeviceStatus(in MidiDeviceInfo deviceInfo);
+
+    // used by MIDI devices to report their status
+    // the token is used by MidiService for death notification
+    void setDeviceStatus(IBinder token, in MidiDeviceStatus status);
 }
diff --git a/media/java/android/media/midi/MidiDevice.java b/media/java/android/media/midi/MidiDevice.java
index af0737d..569f7c6 100644
--- a/media/java/android/media/midi/MidiDevice.java
+++ b/media/java/android/media/midi/MidiDevice.java
@@ -26,6 +26,8 @@
 
 import dalvik.system.CloseGuard;
 
+import libcore.io.IoUtils;
+
 import java.io.Closeable;
 import java.io.IOException;
 
@@ -44,8 +46,29 @@
     private Context mContext;
     private ServiceConnection mServiceConnection;
 
+
     private final CloseGuard mGuard = CloseGuard.get();
 
+    public class MidiConnection implements Closeable {
+        private final IBinder mToken;
+        private final MidiInputPort mInputPort;
+
+        MidiConnection(IBinder token, MidiInputPort inputPort) {
+            mToken = token;
+            mInputPort = inputPort;
+        }
+
+        @Override
+        public void close() throws IOException {
+            try {
+                mDeviceServer.closePort(mToken);
+                IoUtils.closeQuietly(mInputPort);
+            } catch (RemoteException e) {
+                Log.e(TAG, "RemoteException in MidiConnection.close");
+            }
+        }
+    }
+
     /* package */ MidiDevice(MidiDeviceInfo deviceInfo, IMidiDeviceServer server) {
         this(deviceInfo, server, null, null);
     }
@@ -108,6 +131,36 @@
         }
     }
 
+    /**
+     * Connects the supplied {@link MidiInputPort} to the output port of this device
+     * with the specified port number. Once the connection is made, the MidiInput port instance
+     * can no longer receive data via its {@link MidiReciever.receive} method.
+     * This method returns a {@link #MidiConnection} object, which can be used to close the connection
+     * @param inputPort the inputPort to connect
+     * @param outputPortNumber the port number of the output port to connect inputPort to.
+     * @return {@link #MidiConnection} object if the connection is successful, or null in case of failure
+     */
+    public MidiConnection connectPorts(MidiInputPort inputPort, int outputPortNumber) {
+        if (outputPortNumber < 0 || outputPortNumber >= mDeviceInfo.getOutputPortCount()) {
+            throw new IllegalArgumentException("outputPortNumber out of range");
+        }
+
+        ParcelFileDescriptor pfd = inputPort.claimFileDescriptor();
+        if (pfd == null) {
+            return null;
+        }
+         try {
+            IBinder token = new Binder();
+            mDeviceServer.connectPorts(token, pfd, outputPortNumber);
+            // close our copy of the file descriptor
+            IoUtils.closeQuietly(pfd);
+            return new MidiConnection(token, inputPort);
+        } catch (RemoteException e) {
+            Log.e(TAG, "RemoteException in connectPorts");
+            return null;
+        }
+    }
+
     @Override
     public void close() throws IOException {
         synchronized (mGuard) {
diff --git a/media/java/android/media/midi/MidiDeviceServer.java b/media/java/android/media/midi/MidiDeviceServer.java
index 3b4b6f0..b3c0e3a 100644
--- a/media/java/android/media/midi/MidiDeviceServer.java
+++ b/media/java/android/media/midi/MidiDeviceServer.java
@@ -16,8 +16,8 @@
 
 package android.media.midi;
 
-import android.os.IBinder;
 import android.os.Binder;
+import android.os.IBinder;
 import android.os.ParcelFileDescriptor;
 import android.os.Process;
 import android.os.RemoteException;
@@ -61,7 +61,25 @@
     private final CopyOnWriteArrayList<MidiInputPort> mInputPorts
             = new CopyOnWriteArrayList<MidiInputPort>();
 
+
+    // for reporting device status
+    private final IBinder mDeviceStatusToken = new Binder();
+    private final boolean[] mInputPortBusy;
+    private final int[] mOutputPortOpenCount;
+
     private final CloseGuard mGuard = CloseGuard.get();
+    private boolean mIsClosed;
+
+    private final Callback mCallback;
+
+    public interface Callback {
+        /**
+         * Called to notify when an our device status has changed
+         * @param server the {@link MidiDeviceServer} that changed
+         * @param status the {@link MidiDeviceStatus} for the device
+         */
+        public void onDeviceStatusChanged(MidiDeviceServer server, MidiDeviceStatus status);
+    }
 
     abstract private class PortClient implements IBinder.DeathRecipient {
         final IBinder mToken;
@@ -96,7 +114,10 @@
         void close() {
             mToken.unlinkToDeath(this, 0);
             synchronized (mInputPortOutputPorts) {
-                mInputPortOutputPorts[mOutputPort.getPortNumber()] = null;
+                int portNumber = mOutputPort.getPortNumber();
+                mInputPortOutputPorts[portNumber] = null;
+                mInputPortBusy[portNumber] = false;
+                updateDeviceStatus();
             }
             IoUtils.closeQuietly(mOutputPort);
         }
@@ -113,7 +134,15 @@
         @Override
         void close() {
             mToken.unlinkToDeath(this, 0);
-            mOutputPortDispatchers[mInputPort.getPortNumber()].getSender().disconnect(mInputPort);
+            int portNumber = mInputPort.getPortNumber();
+            MidiDispatcher dispatcher = mOutputPortDispatchers[portNumber];
+            synchronized (dispatcher) {
+                dispatcher.getSender().disconnect(mInputPort);
+                int openCount = dispatcher.getReceiverCount();
+                mOutputPortOpenCount[portNumber] = openCount;
+                updateDeviceStatus();
+           }
+
             mInputPorts.remove(mInputPort);
             IoUtils.closeQuietly(mInputPort);
         }
@@ -153,6 +182,8 @@
                     synchronized (mPortClients) {
                         mPortClients.put(token, client);
                     }
+                    mInputPortBusy[portNumber] = true;
+                    updateDeviceStatus();
                     return pair[1];
                 } catch (IOException e) {
                     Log.e(TAG, "unable to create ParcelFileDescriptors in openInputPort");
@@ -178,7 +209,14 @@
                 ParcelFileDescriptor[] pair = ParcelFileDescriptor.createSocketPair(
                                                     OsConstants.SOCK_SEQPACKET);
                 MidiInputPort inputPort = new MidiInputPort(pair[0], portNumber);
-                mOutputPortDispatchers[portNumber].getSender().connect(inputPort);
+                MidiDispatcher dispatcher = mOutputPortDispatchers[portNumber];
+                synchronized (dispatcher) {
+                    dispatcher.getSender().connect(inputPort);
+                    int openCount = dispatcher.getReceiverCount();
+                    mOutputPortOpenCount[portNumber] = openCount;
+                    updateDeviceStatus();
+                }
+
                 mInputPorts.add(inputPort);
                 OutputPortClient client = new OutputPortClient(token, inputPort);
                 synchronized (mPortClients) {
@@ -200,14 +238,27 @@
                 }
             }
         }
+
+        @Override
+        public void connectPorts(IBinder token, ParcelFileDescriptor pfd,
+                int outputPortNumber) {
+            MidiInputPort inputPort = new MidiInputPort(pfd, outputPortNumber);
+            mOutputPortDispatchers[outputPortNumber].getSender().connect(inputPort);
+            mInputPorts.add(inputPort);
+            OutputPortClient client = new OutputPortClient(token, inputPort);
+            synchronized (mPortClients) {
+                mPortClients.put(token, client);
+            }
+        }
     };
 
     /* package */ MidiDeviceServer(IMidiManager midiManager, MidiReceiver[] inputPortReceivers,
-            int numOutputPorts) {
+            int numOutputPorts, Callback callback) {
         mMidiManager = midiManager;
         mInputPortReceivers = inputPortReceivers;
         mInputPortCount = inputPortReceivers.length;
         mOutputPortCount = numOutputPorts;
+        mCallback = callback;
 
         mInputPortOutputPorts = new MidiOutputPort[mInputPortCount];
 
@@ -216,6 +267,9 @@
             mOutputPortDispatchers[i] = new MidiDispatcher();
         }
 
+        mInputPortBusy = new boolean[mInputPortCount];
+        mOutputPortOpenCount = new int[numOutputPorts];
+
         mGuard.open("close");
     }
 
@@ -230,9 +284,28 @@
         mDeviceInfo = deviceInfo;
     }
 
+    private void updateDeviceStatus() {
+        // clear calling identity, since we may be in a Binder call from one of our clients
+        long identityToken = Binder.clearCallingIdentity();
+
+        MidiDeviceStatus status = new MidiDeviceStatus(mDeviceInfo, mInputPortBusy,
+                mOutputPortOpenCount);
+        if (mCallback != null) {
+            mCallback.onDeviceStatusChanged(this, status);
+        }
+        try {
+            mMidiManager.setDeviceStatus(mDeviceStatusToken, status);
+        } catch (RemoteException e) {
+            Log.e(TAG, "RemoteException in updateDeviceStatus");
+        } finally {
+            Binder.restoreCallingIdentity(identityToken);
+        }
+    }
+
     @Override
     public void close() throws IOException {
         synchronized (mGuard) {
+            if (mIsClosed) return;
             mGuard.close();
 
             for (int i = 0; i < mInputPortCount; i++) {
@@ -251,6 +324,7 @@
             } catch (RemoteException e) {
                 Log.e(TAG, "RemoteException in unregisterDeviceServer");
             }
+            mIsClosed = true;
         }
     }
 
diff --git a/media/java/android/media/midi/MidiDeviceService.java b/media/java/android/media/midi/MidiDeviceService.java
index 64f69cd..5f55ae2 100644
--- a/media/java/android/media/midi/MidiDeviceService.java
+++ b/media/java/android/media/midi/MidiDeviceService.java
@@ -57,6 +57,13 @@
     private MidiDeviceServer mServer;
     private MidiDeviceInfo mDeviceInfo;
 
+    private final MidiDeviceServer.Callback mCallback = new MidiDeviceServer.Callback() {
+        @Override
+        public void onDeviceStatusChanged(MidiDeviceServer server, MidiDeviceStatus status) {
+            MidiDeviceService.this.onDeviceStatusChanged(status);
+        }
+    };
+
     @Override
     public void onCreate() {
         mMidiManager = IMidiManager.Stub.asInterface(
@@ -75,7 +82,7 @@
                 inputPortReceivers = new MidiReceiver[0];
             }
             server = new MidiDeviceServer(mMidiManager, inputPortReceivers,
-                    deviceInfo.getOutputPortCount());
+                    deviceInfo.getOutputPortCount(), mCallback);
             server.setDeviceInfo(deviceInfo);
         } catch (RemoteException e) {
             Log.e(TAG, "RemoteException in IMidiManager.getServiceDeviceInfo");
@@ -114,6 +121,13 @@
         return mDeviceInfo;
     }
 
+    /**
+     * Called to notify when an our {@link MidiDeviceStatus} has changed
+     * @param status the number of the port that was opened
+     */
+    public void onDeviceStatusChanged(MidiDeviceStatus status) {
+    }
+
     @Override
     public IBinder onBind(Intent intent) {
         if (SERVICE_INTERFACE.equals(intent.getAction()) && mServer != null) {
diff --git a/media/java/android/media/midi/MidiDeviceStatus.aidl b/media/java/android/media/midi/MidiDeviceStatus.aidl
new file mode 100644
index 0000000..1a848c0
--- /dev/null
+++ b/media/java/android/media/midi/MidiDeviceStatus.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media.midi;
+
+parcelable MidiDeviceStatus;
diff --git a/media/java/android/media/midi/MidiDeviceStatus.java b/media/java/android/media/midi/MidiDeviceStatus.java
new file mode 100644
index 0000000..cc04889
--- /dev/null
+++ b/media/java/android/media/midi/MidiDeviceStatus.java
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media.midi;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * This is an immutable class that describes the current status of a MIDI device's ports.
+ *
+ * CANDIDATE FOR PUBLIC API
+ * @hide
+ */
+public final class MidiDeviceStatus implements Parcelable {
+
+    private static final String TAG = "MidiDeviceStatus";
+
+    private final MidiDeviceInfo mDeviceInfo;
+    // true if input ports are busy
+    private final boolean mInputPortBusy[];
+    // open counts for output ports
+    private final int mOutputPortOpenCount[];
+
+    /**
+     * @hide
+     */
+    public MidiDeviceStatus(MidiDeviceInfo deviceInfo, boolean inputPortBusy[],
+            int outputPortOpenCount[]) {
+        // MidiDeviceInfo is immutable so we can share references
+        mDeviceInfo = deviceInfo;
+
+        // make copies of the arrays
+        mInputPortBusy = new boolean[inputPortBusy.length];
+        System.arraycopy(inputPortBusy, 0, mInputPortBusy, 0, inputPortBusy.length);
+        mOutputPortOpenCount = new int[outputPortOpenCount.length];
+        System.arraycopy(outputPortOpenCount, 0, mOutputPortOpenCount, 0,
+                outputPortOpenCount.length);
+    }
+
+    /**
+     * Creates a MidiDeviceStatus with false for all input port busy values
+     * and zero for all output port open counts
+     * @hide
+     */
+    public MidiDeviceStatus(MidiDeviceInfo deviceInfo) {
+        mDeviceInfo = deviceInfo;
+        mInputPortBusy = new boolean[deviceInfo.getInputPortCount()];
+        mOutputPortOpenCount = new int[deviceInfo.getOutputPortCount()];
+    }
+
+    /**
+     * Returns the {@link MidiDeviceInfo} of the device.
+     *
+     * @return the device info
+     */
+    public MidiDeviceInfo getDeviceInfo() {
+        return mDeviceInfo;
+    }
+
+    /**
+     * Returns true if an input port is busy.
+     *
+     * @param input port's port number
+     * @return input port busy status
+     */
+    public boolean isInputPortBusy(int portNumber) {
+        return mInputPortBusy[portNumber];
+    }
+
+    /**
+     * Returns the open count for an output port.
+     *
+     * @param output port's port number
+     * @return output port open count
+     */
+    public int getOutputPortOpenCount(int portNumber) {
+        return mOutputPortOpenCount[portNumber];
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder(mDeviceInfo.toString());
+        int inputPortCount = mDeviceInfo.getInputPortCount();
+        int outputPortCount = mDeviceInfo.getOutputPortCount();
+        builder.append(" mInputPortBusy=[");
+        for (int i = 0; i < inputPortCount; i++) {
+            builder.append(mInputPortBusy[i]);
+            if (i < inputPortCount -1) {
+                builder.append(",");
+            }
+        }
+        builder.append("] mOutputPortOpenCount=[");
+        for (int i = 0; i < outputPortCount; i++) {
+            builder.append(mOutputPortOpenCount[i]);
+            if (i < outputPortCount -1) {
+                builder.append(",");
+            }
+        }
+        builder.append("]");
+        return builder.toString();
+    }
+
+    public static final Parcelable.Creator<MidiDeviceStatus> CREATOR =
+        new Parcelable.Creator<MidiDeviceStatus>() {
+        public MidiDeviceStatus createFromParcel(Parcel in) {
+            ClassLoader classLoader = MidiDeviceInfo.class.getClassLoader();
+            MidiDeviceInfo deviceInfo = in.readParcelable(classLoader);
+            boolean[] inputPortBusy = in.createBooleanArray();
+            int[] outputPortOpenCount = in.createIntArray();
+            return new MidiDeviceStatus(deviceInfo, inputPortBusy, outputPortOpenCount);
+        }
+
+        public MidiDeviceStatus[] newArray(int size) {
+            return new MidiDeviceStatus[size];
+        }
+    };
+
+    public int describeContents() {
+        return 0;
+    }
+
+    public void writeToParcel(Parcel parcel, int flags) {
+        parcel.writeParcelable(mDeviceInfo, flags);
+        parcel.writeBooleanArray(mInputPortBusy);
+        parcel.writeIntArray(mOutputPortOpenCount);
+   }
+}
diff --git a/media/java/android/media/midi/MidiDispatcher.java b/media/java/android/media/midi/MidiDispatcher.java
index 90789e5..d13ca74 100644
--- a/media/java/android/media/midi/MidiDispatcher.java
+++ b/media/java/android/media/midi/MidiDispatcher.java
@@ -55,11 +55,11 @@
     };
 
     /**
-     * Returns whether this dispatcher contains any receivers.
-     * @return true if the receiver list is not empty
+     * Returns the number of {@link MidiReceiver}s this dispatcher contains.
+     * @return the number of receivers
      */
-    public boolean hasReceivers() {
-        return mReceivers.size() > 0;
+    public int getReceiverCount() {
+        return mReceivers.size();
     }
 
     /**
diff --git a/media/java/android/media/midi/MidiInputPort.java b/media/java/android/media/midi/MidiInputPort.java
index 74e1fa4..752075e 100644
--- a/media/java/android/media/midi/MidiInputPort.java
+++ b/media/java/android/media/midi/MidiInputPort.java
@@ -41,7 +41,8 @@
     private IMidiDeviceServer mDeviceServer;
     private final IBinder mToken;
     private final int mPortNumber;
-    private final FileOutputStream mOutputStream;
+    private ParcelFileDescriptor mParcelFileDescriptor;
+    private FileOutputStream mOutputStream;
 
     private final CloseGuard mGuard = CloseGuard.get();
     private boolean mIsClosed;
@@ -53,8 +54,9 @@
             ParcelFileDescriptor pfd, int portNumber) {
         mDeviceServer = server;
         mToken = token;
+        mParcelFileDescriptor = pfd;
         mPortNumber = portNumber;
-        mOutputStream = new ParcelFileDescriptor.AutoCloseOutputStream(pfd);
+        mOutputStream = new FileOutputStream(pfd.getFileDescriptor());
         mGuard.open("close");
     }
 
@@ -89,11 +91,27 @@
         }
 
         synchronized (mBuffer) {
+            if (mOutputStream == null) {
+                throw new IOException("MidiInputPort is closed");
+            }
             int length = MidiPortImpl.packMessage(msg, offset, count, timestamp, mBuffer);
             mOutputStream.write(mBuffer, 0, length);
         }
     }
 
+    // used by MidiDevice.connectInputPort() to connect our socket directly to another device
+    /* package */ ParcelFileDescriptor claimFileDescriptor() {
+        synchronized (mBuffer) {
+            ParcelFileDescriptor pfd = mParcelFileDescriptor;
+            if (pfd != null) {
+                IoUtils.closeQuietly(mOutputStream);
+                mParcelFileDescriptor = null;
+                mOutputStream = null;
+            }
+            return pfd;
+        }
+    }
+
     @Override
     public int getMaxMessageSize() {
         return MidiPortImpl.MAX_PACKET_DATA_SIZE;
@@ -104,7 +122,16 @@
         synchronized (mGuard) {
             if (mIsClosed) return;
             mGuard.close();
-            mOutputStream.close();
+            synchronized (mBuffer) {
+                if (mParcelFileDescriptor != null) {
+                    mParcelFileDescriptor.close();
+                    mParcelFileDescriptor = null;
+                }
+                if (mOutputStream != null) {
+                    mOutputStream.close();
+                    mOutputStream = null;
+                }
+            }
             if (mDeviceServer != null) {
                 try {
                     mDeviceServer.closePort(mToken);
diff --git a/media/java/android/media/midi/MidiManager.java b/media/java/android/media/midi/MidiManager.java
index d7b8c57..bab9064 100644
--- a/media/java/android/media/midi/MidiManager.java
+++ b/media/java/android/media/midi/MidiManager.java
@@ -62,6 +62,7 @@
             mHandler = handler;
         }
 
+        @Override
         public void onDeviceAdded(MidiDeviceInfo device) {
             if (mHandler != null) {
                 final MidiDeviceInfo deviceF = device;
@@ -75,6 +76,7 @@
             }
         }
 
+        @Override
         public void onDeviceRemoved(MidiDeviceInfo device) {
             if (mHandler != null) {
                 final MidiDeviceInfo deviceF = device;
@@ -87,25 +89,49 @@
                 mCallback.onDeviceRemoved(device);
             }
         }
+
+        @Override
+        public void onDeviceStatusChanged(MidiDeviceStatus status) {
+            if (mHandler != null) {
+                final MidiDeviceStatus statusF = status;
+                mHandler.post(new Runnable() {
+                        @Override public void run() {
+                            mCallback.onDeviceStatusChanged(statusF);
+                        }
+                    });
+            } else {
+                mCallback.onDeviceStatusChanged(status);
+            }
+        }
     }
 
     /**
      * Callback class used for clients to receive MIDI device added and removed notifications
      */
-    abstract public static class DeviceCallback {
+    public static class DeviceCallback {
         /**
          * Called to notify when a new MIDI device has been added
          *
          * @param device a {@link MidiDeviceInfo} for the newly added device
          */
-        abstract public void onDeviceAdded(MidiDeviceInfo device);
+        public void onDeviceAdded(MidiDeviceInfo device) {
+        }
 
         /**
          * Called to notify when a MIDI device has been removed
          *
          * @param device a {@link MidiDeviceInfo} for the removed device
          */
-        abstract public void onDeviceRemoved(MidiDeviceInfo device);
+        public void onDeviceRemoved(MidiDeviceInfo device) {
+        }
+
+        /**
+         * Called to notify when the status of a MIDI device has changed
+         *
+         * @param device a {@link MidiDeviceStatus} for the changed device
+         */
+        public void onDeviceStatusChanged(MidiDeviceStatus status) {
+        }
     }
 
     /**
@@ -251,10 +277,10 @@
 
     /** @hide */
     public MidiDeviceServer createDeviceServer(MidiReceiver[] inputPortReceivers,
-            int numOutputPorts, Bundle properties, int type) {
+            int numOutputPorts, Bundle properties, int type, MidiDeviceServer.Callback callback) {
         try {
             MidiDeviceServer server = new MidiDeviceServer(mService, inputPortReceivers,
-                    numOutputPorts);
+                    numOutputPorts, callback);
             MidiDeviceInfo deviceInfo = mService.registerDeviceServer(server.getBinderInterface(),
                     inputPortReceivers.length, numOutputPorts, properties, type);
             if (deviceInfo == null) {
diff --git a/native/graphics/jni/Android.mk b/native/graphics/jni/Android.mk
index 14575ee..b7f0fbd 100644
--- a/native/graphics/jni/Android.mk
+++ b/native/graphics/jni/Android.mk
@@ -31,7 +31,7 @@
 LOCAL_CFLAGS += -Wall -Werror -Wunused -Wunreachable-code
 
 # TODO: This is to work around b/19059885. Remove after root cause is fixed
-LOCAL_LDFLAGS := -Wl,--hash-style=both
+LOCAL_LDFLAGS_arm := -Wl,--hash-style=both
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/services/core/java/com/android/server/MidiService.java b/services/core/java/com/android/server/MidiService.java
index 7f98b30..d534548 100644
--- a/services/core/java/com/android/server/MidiService.java
+++ b/services/core/java/com/android/server/MidiService.java
@@ -29,6 +29,7 @@
 import android.media.midi.IMidiManager;
 import android.media.midi.MidiDeviceInfo;
 import android.media.midi.MidiDeviceService;
+import android.media.midi.MidiDeviceStatus;
 import android.os.Binder;
 import android.os.Bundle;
 import android.os.IBinder;
@@ -147,6 +148,19 @@
             }
         }
 
+        public void deviceStatusChanged(Device device, MidiDeviceStatus status) {
+            // ignore private devices that our client cannot access
+            if (!device.isUidAllowed(mUid)) return;
+
+            try {
+                for (IMidiDeviceListener listener : mListeners) {
+                    listener.onDeviceStatusChanged(status);
+                }
+            } catch (RemoteException e) {
+                Log.e(TAG, "remote exception", e);
+            }
+        }
+
         public void binderDied() {
             removeClient(mToken);
         }
@@ -187,6 +201,8 @@
     private final class Device implements IBinder.DeathRecipient {
         private final IMidiDeviceServer mServer;
         private final MidiDeviceInfo mDeviceInfo;
+        private MidiDeviceStatus mDeviceStatus;
+        private IBinder mDeviceStatusToken;
         // ServiceInfo for the device's MidiDeviceServer implementation (virtual devices only)
         private final ServiceInfo mServiceInfo;
         // UID of device implementation
@@ -204,6 +220,33 @@
             return mDeviceInfo;
         }
 
+        public MidiDeviceStatus getDeviceStatus() {
+            return mDeviceStatus;
+        }
+
+        public void setDeviceStatus(IBinder token, MidiDeviceStatus status) {
+            mDeviceStatus = status;
+
+            if (mDeviceStatusToken == null && token != null) {
+                // register a death recipient so we can clear the status when the device dies
+                try {
+                    token.linkToDeath(new IBinder.DeathRecipient() {
+                        @Override
+                        public void binderDied() {
+                            // reset to default status and clear the token
+                            mDeviceStatus = new MidiDeviceStatus(mDeviceInfo);
+                            mDeviceStatusToken = null;
+                            notifyDeviceStatusChanged(Device.this, mDeviceStatus);
+                        }
+                    }, 0);
+                    mDeviceStatusToken = token;
+                } catch (RemoteException e) {
+                    // reset to default status
+                    mDeviceStatus = new MidiDeviceStatus(mDeviceInfo);
+                }
+            }
+        }
+
         public IMidiDeviceServer getDeviceServer() {
             return mServer;
         }
@@ -216,6 +259,10 @@
             return (mServiceInfo == null ? null : mServiceInfo.packageName);
         }
 
+        public int getUid() {
+            return mUid;
+        }
+
         public boolean isUidAllowed(int uid) {
             return (!mDeviceInfo.isPrivate() || mUid == uid);
         }
@@ -302,13 +349,14 @@
     @Override
     public MidiDeviceInfo registerDeviceServer(IMidiDeviceServer server, int numInputPorts,
             int numOutputPorts, Bundle properties, int type) {
-        if (type != MidiDeviceInfo.TYPE_VIRTUAL && Binder.getCallingUid() != Process.SYSTEM_UID) {
+        int uid = Binder.getCallingUid();
+        if (type != MidiDeviceInfo.TYPE_VIRTUAL && uid != Process.SYSTEM_UID) {
             throw new SecurityException("only system can create non-virtual devices");
         }
 
         synchronized (mDevicesByInfo) {
             return addDeviceLocked(type, numInputPorts, numOutputPorts, properties,
-            server, null, false, -1);
+            server, null, false, uid);
         }
     }
 
@@ -337,6 +385,39 @@
         }
     }
 
+    @Override
+    public MidiDeviceStatus getDeviceStatus(MidiDeviceInfo deviceInfo) {
+        Device device = mDevicesByInfo.get(deviceInfo);
+        if (device == null) {
+            throw new IllegalArgumentException("no such device for " + deviceInfo);
+        }
+        return device.getDeviceStatus();
+    }
+
+    @Override
+    public void setDeviceStatus(IBinder token, MidiDeviceStatus status) {
+        MidiDeviceInfo deviceInfo = status.getDeviceInfo();
+        Device device = mDevicesByInfo.get(deviceInfo);
+        if (device == null) {
+            // Just return quietly here if device no longer exists
+            return;
+        }
+        if (Binder.getCallingUid() != device.getUid()) {
+            throw new SecurityException("setDeviceStatus() caller UID " + Binder.getCallingUid()
+                    + " does not match device's UID " + device.getUid());
+        }
+        device.setDeviceStatus(token, status);
+        notifyDeviceStatusChanged(device, status);
+    }
+
+    private void notifyDeviceStatusChanged(Device device, MidiDeviceStatus status) {
+        synchronized (mClients) {
+            for (Client c : mClients.values()) {
+                c.deviceStatusChanged(device, status);
+            }
+        }
+    }
+
     // synchronize on mDevicesByInfo
     private MidiDeviceInfo addDeviceLocked(int type, int numInputPorts, int numOutputPorts,
             Bundle properties, IMidiDeviceServer server, ServiceInfo serviceInfo,
@@ -469,17 +550,15 @@
                                 continue;
                             }
 
-                            int uid = -1;
-                            if (isPrivate) {
-                                try {
-                                    ApplicationInfo appInfo = mPackageManager.getApplicationInfo(
-                                            serviceInfo.packageName, 0);
-                                    uid = appInfo.uid;
-                                } catch (PackageManager.NameNotFoundException e) {
-                                    Log.e(TAG, "could not fetch ApplicationInfo for "
-                                            + serviceInfo.packageName);
-                                    continue;
-                                }
+                            int uid;
+                            try {
+                                ApplicationInfo appInfo = mPackageManager.getApplicationInfo(
+                                        serviceInfo.packageName, 0);
+                                uid = appInfo.uid;
+                            } catch (PackageManager.NameNotFoundException e) {
+                                Log.e(TAG, "could not fetch ApplicationInfo for "
+                                        + serviceInfo.packageName);
+                                continue;
                             }
 
                             synchronized (mDevicesByInfo) {
diff --git a/services/core/java/com/android/server/policy/BurnInProtectionHelper.java b/services/core/java/com/android/server/policy/BurnInProtectionHelper.java
index b8a3155..b99c436 100644
--- a/services/core/java/com/android/server/policy/BurnInProtectionHelper.java
+++ b/services/core/java/com/android/server/policy/BurnInProtectionHelper.java
@@ -25,7 +25,11 @@
 import android.content.res.Resources;
 import android.hardware.display.DisplayManager;
 import android.hardware.display.DisplayManagerInternal;
+import android.os.Build;
+import android.os.Handler;
 import android.os.SystemClock;
+import android.os.SystemProperties;
+import android.util.Log;
 import android.view.Display;
 
 import com.android.server.LocalServices;
@@ -37,7 +41,7 @@
     private static final String TAG = "BurnInProtection";
 
     // Default value when max burnin radius is not set.
-    public static final int BURN_IN_RADIUS_MAX_DEFAULT = -1;
+    public static final int BURN_IN_MAX_RADIUS_DEFAULT = -1;
 
     private static final long BURNIN_PROTECTION_WAKEUP_INTERVAL_MS = TimeUnit.MINUTES.toMillis(1);
     private static final long BURNIN_PROTECTION_MINIMAL_INTERVAL_MS = TimeUnit.SECONDS.toMillis(10);
@@ -74,23 +78,19 @@
             updateBurnInProtection();
         }
     };
-
-    public BurnInProtectionHelper(Context context) {
+    
+    public BurnInProtectionHelper(Context context, int minHorizontalOffset,
+            int maxHorizontalOffset, int minVerticalOffset, int maxVerticalOffset,
+            int maxOffsetRadius) {
         final Resources resources = context.getResources();
-        mMinHorizontalBurnInOffset = resources.getInteger(
-                com.android.internal.R.integer.config_burnInProtectionMinHorizontalOffset);
-        mMaxHorizontalBurnInOffset = resources.getInteger(
-                com.android.internal.R.integer.config_burnInProtectionMaxHorizontalOffset);
-        mMinVerticalBurnInOffset = resources.getInteger(
-                com.android.internal.R.integer.config_burnInProtectionMinVerticalOffset);
-        mMaxVerticalBurnInOffset = resources.getInteger(
-                com.android.internal.R.integer.config_burnInProtectionMaxVerticalOffset);
-        int burnInRadiusMax = resources.getInteger(
-                com.android.internal.R.integer.config_burnInProtectionMaxRadius);
-        if (burnInRadiusMax != BURN_IN_RADIUS_MAX_DEFAULT) {
-            mBurnInRadiusMaxSquared = burnInRadiusMax * burnInRadiusMax;
+        mMinHorizontalBurnInOffset = minHorizontalOffset;
+        mMaxHorizontalBurnInOffset = maxHorizontalOffset;
+        mMinVerticalBurnInOffset = minVerticalOffset;
+        mMaxVerticalBurnInOffset = maxHorizontalOffset;
+        if (maxOffsetRadius != BURN_IN_MAX_RADIUS_DEFAULT) {
+            mBurnInRadiusMaxSquared = maxOffsetRadius * maxOffsetRadius;
         } else {
-            mBurnInRadiusMaxSquared = BURN_IN_RADIUS_MAX_DEFAULT;
+            mBurnInRadiusMaxSquared = BURN_IN_MAX_RADIUS_DEFAULT;
         }
 
         mDisplayManagerInternal = LocalServices.getService(DisplayManagerInternal.class);
@@ -175,7 +175,7 @@
                 }
             }
             // If we are outside of the radius, let's try again.
-        } while (mBurnInRadiusMaxSquared != BURN_IN_RADIUS_MAX_DEFAULT
+        } while (mBurnInRadiusMaxSquared != BURN_IN_MAX_RADIUS_DEFAULT
                 && mLastBurnInXOffset * mLastBurnInXOffset + mLastBurnInYOffset * mLastBurnInYOffset
                         > mBurnInRadiusMaxSquared);
     }
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 62e7af4..29a7fd3 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -49,6 +49,7 @@
 import android.media.Ringtone;
 import android.media.RingtoneManager;
 import android.media.session.MediaSessionLegacyHelper;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Debug;
 import android.os.FactoryTest;
@@ -94,6 +95,7 @@
 import android.view.Surface;
 import android.view.View;
 import android.view.ViewConfiguration;
+import android.view.ViewRootImpl;
 import android.view.Window;
 import android.view.WindowManager;
 import android.view.WindowManagerGlobal;
@@ -1185,6 +1187,12 @@
         }
     };
 
+    private boolean isRoundWindow() {
+        return mContext.getResources().getBoolean(com.android.internal.R.bool.config_windowIsRound)
+                || (Build.HARDWARE.contains("goldfish")
+                && SystemProperties.getBoolean(ViewRootImpl.PROPERTY_EMULATOR_CIRCULAR, false));
+    }
+
     /** {@inheritDoc} */
     @Override
     public void init(Context context, IWindowManager windowManager,
@@ -1194,9 +1202,40 @@
         mWindowManagerFuncs = windowManagerFuncs;
         mWindowManagerInternal = LocalServices.getService(WindowManagerInternal.class);
         mDreamManagerInternal = LocalServices.getService(DreamManagerInternal.class);
-        if (context.getResources().getBoolean(
-                com.android.internal.R.bool.config_enableBurnInProtection)){
-            mBurnInProtectionHelper = new BurnInProtectionHelper(context);
+
+        // Init display burn-in protection
+        boolean burnInProtectionEnabled = context.getResources().getBoolean(
+                com.android.internal.R.bool.config_enableBurnInProtection);
+        // Allow a system property to override this. Used by developer settings.
+        boolean burnInProtectionDevMode =
+                SystemProperties.getBoolean("persist.debug.force_burn_in", false);
+        if (burnInProtectionEnabled || burnInProtectionDevMode) {
+            final int minHorizontal;
+            final int maxHorizontal;
+            final int minVertical;
+            final int maxVertical;
+            final int maxRadius;
+            if (burnInProtectionDevMode) {
+                minHorizontal = -8;
+                maxHorizontal = 8;
+                minVertical = -8;
+                maxVertical = -4;
+                maxRadius = (isRoundWindow()) ? 6 : -1;
+            } else {
+                Resources resources = context.getResources();
+                minHorizontal = resources.getInteger(
+                        com.android.internal.R.integer.config_burnInProtectionMinHorizontalOffset);
+                maxHorizontal = resources.getInteger(
+                        com.android.internal.R.integer.config_burnInProtectionMaxHorizontalOffset);
+                minVertical = resources.getInteger(
+                        com.android.internal.R.integer.config_burnInProtectionMinVerticalOffset);
+                maxVertical = resources.getInteger(
+                        com.android.internal.R.integer.config_burnInProtectionMaxVerticalOffset);
+                maxRadius = resources.getInteger(
+                        com.android.internal.R.integer.config_burnInProtectionMaxRadius);
+            }
+            mBurnInProtectionHelper = new BurnInProtectionHelper(
+                    context, minHorizontal, maxHorizontal, minVertical, maxVertical, maxRadius);
         }
 
         mHandler = new PolicyHandler();
diff --git a/services/core/java/com/android/server/wm/AppTransition.java b/services/core/java/com/android/server/wm/AppTransition.java
index ef70895..4c06cbe 100644
--- a/services/core/java/com/android/server/wm/AppTransition.java
+++ b/services/core/java/com/android/server/wm/AppTransition.java
@@ -977,7 +977,9 @@
                             + " anim=" + a + " nextAppTransition=ANIM_CUSTOM_IN_PLACE"
                             + " transit=" + transit + " Callers=" + Debug.getCallers(3));
         } else if (mNextAppTransitionType == NEXT_TRANSIT_TYPE_CLIP_REVEAL) {
-            a = createClipRevealAnimationLocked(transit, enter, appWidth, appHeight);
+            a = createClipRevealAnimationLocked(transit, enter,
+                    containingFrame.right - containingFrame.left,
+                    containingFrame.bottom - containingFrame.top);
             if (DEBUG_APP_TRANSITIONS || DEBUG_ANIM) Slog.v(TAG,
                     "applyAnimation:"
                             + " anim=" + a + " nextAppTransition=ANIM_CLIP_REVEAL"
diff --git a/services/core/java/com/android/server/wm/WindowStateAnimator.java b/services/core/java/com/android/server/wm/WindowStateAnimator.java
index 89ed5b7..ac1b0f1 100644
--- a/services/core/java/com/android/server/wm/WindowStateAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowStateAnimator.java
@@ -1139,6 +1139,8 @@
                     mShownAlpha *= appTransformation.getAlpha();
                     if (appTransformation.hasClipRect()) {
                         mClipRect.set(appTransformation.getClipRect());
+                        // Account for non-fullscreen windows
+                        mClipRect.offset(frame.left, frame.top);
                         if (mWin.mHScale > 0) {
                             mClipRect.left /= mWin.mHScale;
                             mClipRect.right /= mWin.mHScale;
diff --git a/services/usb/java/com/android/server/usb/UsbMidiDevice.java b/services/usb/java/com/android/server/usb/UsbMidiDevice.java
index f927965..725f393 100644
--- a/services/usb/java/com/android/server/usb/UsbMidiDevice.java
+++ b/services/usb/java/com/android/server/usb/UsbMidiDevice.java
@@ -121,7 +121,7 @@
 
         int outputCount = mOutputStreams.length;
         mServer = midiManager.createDeviceServer(mInputPortReceivers, outputCount,
-                properties, MidiDeviceInfo.TYPE_USB);
+                properties, MidiDeviceInfo.TYPE_USB, null);
         if (mServer == null) {
             return false;
         }