Merge "Avoid NDC deadlock when re-arming network alert."
diff --git a/api/current.txt b/api/current.txt
index 051ea66..9e94a0d 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -17583,6 +17583,7 @@
     field public static final java.lang.String ALARM_ALERT = "alarm_alert";
     field public static final java.lang.String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";
     field public static final deprecated java.lang.String ANDROID_ID = "android_id";
+    field public static final java.lang.String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
     field public static final java.lang.String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
     field public static final java.lang.String AUTO_TIME = "auto_time";
     field public static final java.lang.String AUTO_TIME_ZONE = "auto_time_zone";
diff --git a/core/java/android/animation/ValueAnimator.java b/core/java/android/animation/ValueAnimator.java
index 3f28e67..cc1efb9 100755
--- a/core/java/android/animation/ValueAnimator.java
+++ b/core/java/android/animation/ValueAnimator.java
@@ -54,7 +54,6 @@
      * Internal constants
      */
     private static float sDurationScale = 1.0f;
-    private static boolean sDurationScaleInitialized = false;
 
     /**
      * Messages sent to timing handler: START is sent when an animation first begins.
@@ -161,7 +160,7 @@
     //
 
     // How long the animation should last in ms
-    private long mDuration = 300;
+    private long mDuration = (long)(300 * sDurationScale);
     private long mUnscaledDuration = 300;
 
     // The amount of time in ms to delay starting the animation after start() is called
@@ -222,21 +221,20 @@
      */
     public static final int INFINITE = -1;
 
+
+    /**
+     * @hide
+     */
+    public static void setDurationScale(float durationScale) {
+        sDurationScale = durationScale;
+    }
+
     /**
      * Creates a new ValueAnimator object. This default constructor is primarily for
      * use internally; the factory methods which take parameters are more generally
      * useful.
      */
     public ValueAnimator() {
-        if (!sDurationScaleInitialized) {
-            // Scale value initialized per-process when first animator is constructed
-            String scaleString = SystemProperties.get("persist.sys.ui.animation");
-            if (!scaleString.isEmpty()) {
-                sDurationScale = Float.parseFloat(scaleString);
-            }
-            sDurationScaleInitialized = true;
-        }
-        mDuration *= sDurationScale;
     }
 
     /**
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index f14d27e..207810c 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -1678,6 +1678,13 @@
         public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
 
         /**
+         * Scaling factor for Animator-based animations. This affects both the start delay and
+         * duration of all such animations. Setting to 0 will cause animations to end immediately.
+         * The default value is 1.
+         */
+        public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
+
+        /**
          * Scaling factor for normal window animations. Setting to 0 will disable window
          * animations.
          * @hide
diff --git a/core/java/android/view/Choreographer.java b/core/java/android/view/Choreographer.java
index 63de128..c86ea77 100644
--- a/core/java/android/view/Choreographer.java
+++ b/core/java/android/view/Choreographer.java
@@ -26,7 +26,7 @@
 import android.util.Log;
 
 /**
- * Coodinates animations and drawing for UI on a particular thread.
+ * Coordinates animations and drawing for UI on a particular thread.
  * @hide
  */
 public final class Choreographer extends Handler {
@@ -94,8 +94,8 @@
     }
 
     /**
-     * Gets the choreographer for this thread.
-     * Must be called on the UI thread.
+     * Gets the choreographer for the calling thread.  Must be called from
+     * a thread that already has a {@link android.os.Looper} associated with it.
      *
      * @return The choreographer for this thread.
      * @throws IllegalStateException if the thread does not have a looper.
@@ -163,6 +163,15 @@
     }
 
     /**
+     * Return true if {@link #scheduleAnimation()} has been called but
+     * {@link OnAnimateListener#onAnimate() OnAnimateListener.onAnimate()} has
+     * not yet been called.
+     */
+    public boolean isAnimationScheduled() {
+        return mAnimationScheduled;
+    }
+
+    /**
      * Schedules drawing to occur on the next frame synchronization boundary.
      * Must be called on the UI thread.
      */
@@ -180,6 +189,15 @@
         }
     }
 
+    /**
+     * Return true if {@link #scheduleDraw()} has been called but
+     * {@link OnDrawListener#onDraw() OnDrawListener.onDraw()} has
+     * not yet been called.
+     */
+    public boolean isDrawScheduled() {
+        return mDrawScheduled;
+    }
+
     @Override
     public void handleMessage(Message msg) {
         switch (msg.what) {
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index d80d080..cf4cff9 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -3761,8 +3761,14 @@
     }
 
     /**
-     * Called when this view wants to give up focus. This will cause
-     * {@link #onFocusChanged(boolean, int, android.graphics.Rect)} to be called.
+     * Called when this view wants to give up focus. If focus is cleared
+     * {@link #onFocusChanged(boolean, int, android.graphics.Rect)} is called.
+     * <p>
+     * <strong>Note:</strong> When a View clears focus the framework is trying
+     * to give focus to the first focusable View from the top. Hence, if this
+     * View is the first from the top that can take focus, then its focus will
+     * not be cleared nor will the focus change callback be invoked.
+     * </p>
      */
     public void clearFocus() {
         if (DBG) {
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index eefebd5..cbf4b5a 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -18,6 +18,7 @@
 
 import android.Manifest;
 import android.animation.LayoutTransition;
+import android.animation.ValueAnimator;
 import android.app.ActivityManagerNative;
 import android.content.ClipDescription;
 import android.content.ComponentCallbacks;
@@ -323,8 +324,11 @@
             if (!mInitialized) {
                 try {
                     InputMethodManager imm = InputMethodManager.getInstance(mainLooper);
-                    sWindowSession = Display.getWindowManager().openSession(
+                    IWindowManager windowManager = Display.getWindowManager();
+                    sWindowSession = windowManager.openSession(
                             imm.getClient(), imm.getInputContext());
+                    float animatorScale = windowManager.getAnimationScale(2);
+                    ValueAnimator.setDurationScale(animatorScale);
                     mInitialized = true;
                 } catch (RemoteException e) {
                 }
diff --git a/core/java/android/widget/ListView.java b/core/java/android/widget/ListView.java
index e20d12a..67fd059 100644
--- a/core/java/android/widget/ListView.java
+++ b/core/java/android/widget/ListView.java
@@ -1651,6 +1651,7 @@
                 // are focusable
                 if (mItemsCanFocus && hasFocus() && !sel.hasFocus()) {
                     final boolean focusWasTaken = (sel == focusLayoutRestoreDirectChild &&
+                            focusLayoutRestoreView != null &&
                             focusLayoutRestoreView.requestFocus()) || sel.requestFocus();
                     if (!focusWasTaken) {
                         // selected item didn't take focus, fine, but still want
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index b514bf5..16b7ff3 100755
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -2061,7 +2061,7 @@
         </attr>
         <!-- Direction of the text. A heuristic is used to determine the resolved text direction
              of paragraphs. -->
-        <attr name="textDirection" format="integer">
+         <attr name="textDirection" format="integer">
             <!-- Default -->
             <enum name="inherit" value="0" />
             <!-- Default for the root view. The first strong directional character determines the
@@ -2072,16 +2072,12 @@
                  it is LTR if it contains any strong LTR characters.  If there are neither, the
                  paragraph direction is the view’s resolved layout direction. -->
             <enum name="anyRtl" value="2" />
-            <!-- The paragraph direction is the same as the one held by a 60% majority of the
-                 characters. If there is no majority then the paragraph direction is the resolved
-                 layout direction of the View. -->
-            <enum name="charCount" value="3" />
             <!-- The paragraph direction is left to right. -->
-            <enum name="ltr" value="4" />
+            <enum name="ltr" value="3" />
             <!-- The paragraph direction is right to left. -->
-            <enum name="rtl" value="5" />
+            <enum name="rtl" value="4" />
             <!-- The paragraph direction is coming from the system Locale. -->
-            <enum name="locale" value="6" />
+            <enum name="locale" value="5" />
         </attr>
     </declare-styleable>
 
diff --git a/docs/html/index.jd b/docs/html/index.jd
index fdf860a..b9d6758 100644
--- a/docs/html/index.jd
+++ b/docs/html/index.jd
@@ -1,5 +1,5 @@
 home=true
-metaDescription=The official site for Android developers. Provides the Android SDK and documentation for app developers and designers.
+page.metaDescription=The official site for Android developers. Provides the Android SDK and documentation for app developers and designers.
 @jd:body
 
 
diff --git a/libs/rs/rsScriptC.cpp b/libs/rs/rsScriptC.cpp
index afc8ba0..929dd68 100644
--- a/libs/rs/rsScriptC.cpp
+++ b/libs/rs/rsScriptC.cpp
@@ -206,7 +206,6 @@
         return false;
     }
 
-    rsAssert(bcWrapper.getHeaderVersion() == 0);
     if (bcWrapper.getBCFileType() == bcinfo::BC_WRAPPER) {
         sdkVersion = bcWrapper.getTargetAPI();
     }
diff --git a/media/java/android/media/MediaScanner.java b/media/java/android/media/MediaScanner.java
index b640e9a..1c13fff 100644
--- a/media/java/android/media/MediaScanner.java
+++ b/media/java/android/media/MediaScanner.java
@@ -314,10 +314,8 @@
 
     private final String mExternalStoragePath;
 
-    // WARNING: Bulk inserts sounded like a great idea and gave us a good performance improvement,
-    // but unfortunately it also introduced a number of bugs. All the known bugs were fixed,
-    // but we need more testing before enabling.
-    private static final boolean ENABLE_BULK_INSERTS = false;
+    /** whether to use bulk inserts or individual inserts for each item */
+    private static final boolean ENABLE_BULK_INSERTS = true;
 
     // used when scanning the image database so we know whether we have to prune
     // old thumbnail files
diff --git a/media/libeffects/preprocessing/Android.mk b/media/libeffects/preprocessing/Android.mk
index 77d40b6..7f7c7e1 100755
--- a/media/libeffects/preprocessing/Android.mk
+++ b/media/libeffects/preprocessing/Android.mk
@@ -13,7 +13,7 @@
 LOCAL_C_INCLUDES += \
     external/webrtc/src \
     external/webrtc/src/modules/interface \
-    external/webrtc/src/modules/audio_processing/main/interface \
+    external/webrtc/src/modules/audio_processing/interface \
     system/media/audio_effects/include
 
 LOCAL_C_INCLUDES += $(call include-path-for, speex)
diff --git a/media/libeffects/preprocessing/PreProcessing.cpp b/media/libeffects/preprocessing/PreProcessing.cpp
index e988e06..9fd6764 100755
--- a/media/libeffects/preprocessing/PreProcessing.cpp
+++ b/media/libeffects/preprocessing/PreProcessing.cpp
@@ -24,8 +24,8 @@
 #include <audio_effects/effect_aec.h>
 #include <audio_effects/effect_agc.h>
 #include <audio_effects/effect_ns.h>
-#include "modules/interface/module_common_types.h"
-#include "modules/audio_processing/main/interface/audio_processing.h"
+#include <module_common_types.h>
+#include <audio_processing.h>
 #include "speex/speex_resampler.h"
 
 
@@ -220,8 +220,8 @@
 // Automatic Gain Control (AGC)
 //------------------------------------------------------------------------------
 
-static const int kAgcDefaultTargetLevel = 0;
-static const int kAgcDefaultCompGain = 90;
+static const int kAgcDefaultTargetLevel = 3;
+static const int kAgcDefaultCompGain = 9;
 static const bool kAgcDefaultLimiter = true;
 
 int  AgcInit (preproc_effect_t *effect)
diff --git a/media/libstagefright/colorconversion/ColorConverter.cpp b/media/libstagefright/colorconversion/ColorConverter.cpp
index 5cc3f78..f3ef3de 100644
--- a/media/libstagefright/colorconversion/ColorConverter.cpp
+++ b/media/libstagefright/colorconversion/ColorConverter.cpp
@@ -144,8 +144,8 @@
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_ptr = (const uint8_t *)src.mBits
         + (src.mCropTop * dst.mWidth + src.mCropLeft) * 2;
@@ -182,11 +182,15 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[b2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_ptr += src.mWidth * 2;
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
@@ -290,15 +294,14 @@
         const BitmapParams &src, const BitmapParams &dst) {
     uint8_t *kAdjustedClip = initClip();
 
-    if (!((dst.mWidth & 3) == 0
-            && (src.mCropLeft & 1) == 0
+    if (!((src.mCropLeft & 1) == 0
             && src.cropWidth() == dst.cropWidth()
             && src.cropHeight() == dst.cropHeight())) {
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_y =
         (const uint8_t *)src.mBits + src.mCropTop * src.mWidth + src.mCropLeft;
@@ -340,7 +343,11 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[r2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_y += src.mWidth;
@@ -349,7 +356,7 @@
             src_u += src.mWidth;
         }
 
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
@@ -361,15 +368,14 @@
 
     uint8_t *kAdjustedClip = initClip();
 
-    if (!((dst.mWidth & 3) == 0
-            && (src.mCropLeft & 1) == 0
+    if (!((src.mCropLeft & 1) == 0
             && src.cropWidth() == dst.cropWidth()
             && src.cropHeight() == dst.cropHeight())) {
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_y =
         (const uint8_t *)src.mBits + src.mCropTop * src.mWidth + src.mCropLeft;
@@ -411,7 +417,11 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[r2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_y += src.mWidth;
@@ -420,7 +430,7 @@
             src_u += src.mWidth;
         }
 
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
@@ -430,15 +440,14 @@
         const BitmapParams &src, const BitmapParams &dst) {
     uint8_t *kAdjustedClip = initClip();
 
-    if (!((dst.mWidth & 3) == 0
-            && (src.mCropLeft & 1) == 0
+    if (!((src.mCropLeft & 1) == 0
             && src.cropWidth() == dst.cropWidth()
             && src.cropHeight() == dst.cropHeight())) {
         return ERROR_UNSUPPORTED;
     }
 
-    uint32_t *dst_ptr = (uint32_t *)dst.mBits
-        + (dst.mCropTop * dst.mWidth + dst.mCropLeft) / 2;
+    uint16_t *dst_ptr = (uint16_t *)dst.mBits
+        + dst.mCropTop * dst.mWidth + dst.mCropLeft;
 
     const uint8_t *src_y = (const uint8_t *)src.mBits;
 
@@ -478,7 +487,11 @@
                 | ((kAdjustedClip[g2] >> 2) << 5)
                 | (kAdjustedClip[b2] >> 3);
 
-            dst_ptr[x / 2] = (rgb2 << 16) | rgb1;
+            if (x + 1 < src.cropWidth()) {
+                *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
+            } else {
+                dst_ptr[x] = rgb1;
+            }
         }
 
         src_y += src.mWidth;
@@ -487,7 +500,7 @@
             src_u += src.mWidth;
         }
 
-        dst_ptr += dst.mWidth / 2;
+        dst_ptr += dst.mWidth;
     }
 
     return OK;
diff --git a/services/java/com/android/server/wm/WindowManagerService.java b/services/java/com/android/server/wm/WindowManagerService.java
index 19d94a1..620d74c 100644
--- a/services/java/com/android/server/wm/WindowManagerService.java
+++ b/services/java/com/android/server/wm/WindowManagerService.java
@@ -95,6 +95,7 @@
 import android.util.Slog;
 import android.util.SparseIntArray;
 import android.util.TypedValue;
+import android.view.Choreographer;
 import android.view.Display;
 import android.view.Gravity;
 import android.view.IApplicationToken;
@@ -141,7 +142,8 @@
 
 /** {@hide} */
 public class WindowManagerService extends IWindowManager.Stub
-        implements Watchdog.Monitor, WindowManagerPolicy.WindowManagerFuncs {
+        implements Watchdog.Monitor, WindowManagerPolicy.WindowManagerFuncs,
+        Choreographer.OnAnimateListener {
     static final String TAG = "WindowManager";
     static final boolean DEBUG = false;
     static final boolean DEBUG_ADD_REMOVE = false;
@@ -456,7 +458,7 @@
     int mDeferredRotationPauseCount;
 
     boolean mLayoutNeeded = true;
-    boolean mAnimationPending = false;
+    boolean mTraversalScheduled = false;
     boolean mDisplayFrozen = false;
     boolean mWaitingForConfig = false;
     boolean mWindowsFreezingScreen = false;
@@ -503,7 +505,9 @@
     final DisplayMetrics mTmpDisplayMetrics = new DisplayMetrics();
     final DisplayMetrics mCompatDisplayMetrics = new DisplayMetrics();
 
-    H mH = new H();
+    final H mH = new H();
+
+    final Choreographer mChoreographer = Choreographer.getInstance();
 
     WindowState mCurrentFocus = null;
     WindowState mLastFocus = null;
@@ -559,6 +563,7 @@
 
     float mWindowAnimationScale = 1.0f;
     float mTransitionAnimationScale = 1.0f;
+    float mAnimatorDurationScale = 1.0f;
 
     final InputManager mInputManager;
 
@@ -691,6 +696,7 @@
             Looper.prepare();
             WindowManagerService s = new WindowManagerService(mContext, mPM,
                     mHaveInputMethods, mAllowBootMessages);
+            s.mChoreographer.addOnAnimateListener(s);
             android.os.Process.setThreadPriority(
                     android.os.Process.THREAD_PRIORITY_DISPLAY);
             android.os.Process.setCanSelfBackground(false);
@@ -774,6 +780,8 @@
                 Settings.System.WINDOW_ANIMATION_SCALE, mWindowAnimationScale);
         mTransitionAnimationScale = Settings.System.getFloat(context.getContentResolver(),
                 Settings.System.TRANSITION_ANIMATION_SCALE, mTransitionAnimationScale);
+        mAnimatorDurationScale = Settings.System.getFloat(context.getContentResolver(),
+                Settings.System.ANIMATOR_DURATION_SCALE, mTransitionAnimationScale);
 
         // Track changes to DevicePolicyManager state so we can enable/disable keyguard.
         IntentFilter filter = new IntentFilter();
@@ -4657,6 +4665,7 @@
         switch (which) {
             case 0: mWindowAnimationScale = fixScale(scale); break;
             case 1: mTransitionAnimationScale = fixScale(scale); break;
+            case 2: mAnimatorDurationScale = fixScale(scale); break;
         }
 
         // Persist setting
@@ -4676,6 +4685,9 @@
             if (scales.length >= 2) {
                 mTransitionAnimationScale = fixScale(scales[1]);
             }
+            if (scales.length >= 3) {
+                mAnimatorDurationScale = fixScale(scales[2]);
+            }
         }
 
         // Persist setting
@@ -4686,12 +4698,14 @@
         switch (which) {
             case 0: return mWindowAnimationScale;
             case 1: return mTransitionAnimationScale;
+            case 2: return mAnimatorDurationScale;
         }
         return 0;
     }
 
     public float[] getAnimationScales() {
-        return new float[] { mWindowAnimationScale, mTransitionAnimationScale };
+        return new float[] { mWindowAnimationScale, mTransitionAnimationScale,
+                mAnimatorDurationScale };
     }
 
     public int getSwitchState(int sw) {
@@ -5390,7 +5404,7 @@
                 if (mScreenRotationAnimation.setRotation(rotation, mFxSession,
                         MAX_ANIMATION_DURATION, mTransitionAnimationScale,
                         mCurDisplayWidth, mCurDisplayHeight)) {
-                    requestAnimationLocked(0);
+                    mChoreographer.scheduleAnimation();
                 }
             }
             Surface.setOrientation(0, rotation);
@@ -6513,7 +6527,7 @@
     final class H extends Handler {
         public static final int REPORT_FOCUS_CHANGE = 2;
         public static final int REPORT_LOSING_FOCUS = 3;
-        public static final int ANIMATE = 4;
+        public static final int DO_TRAVERSAL = 4;
         public static final int ADD_STARTING = 5;
         public static final int REMOVE_STARTING = 6;
         public static final int FINISHED_STARTING = 7;
@@ -6607,9 +6621,9 @@
                     }
                 } break;
 
-                case ANIMATE: {
+                case DO_TRAVERSAL: {
                     synchronized(mWindowMap) {
-                        mAnimationPending = false;
+                        mTraversalScheduled = false;
                         performLayoutAndPlaceSurfacesLocked();
                     }
                 } break;
@@ -6825,12 +6839,14 @@
                             Settings.System.WINDOW_ANIMATION_SCALE, mWindowAnimationScale);
                     Settings.System.putFloat(mContext.getContentResolver(),
                             Settings.System.TRANSITION_ANIMATION_SCALE, mTransitionAnimationScale);
+                    Settings.System.putFloat(mContext.getContentResolver(),
+                            Settings.System.ANIMATOR_DURATION_SCALE, mAnimatorDurationScale);
                     break;
                 }
 
                 case FORCE_GC: {
                     synchronized(mWindowMap) {
-                        if (mAnimationPending) {
+                        if (mChoreographer.isAnimationScheduled()) {
                             // If we are animating, don't do the gc now but
                             // delay a bit so we don't interrupt the animation.
                             mH.sendMessageDelayed(mH.obtainMessage(H.FORCE_GC),
@@ -7389,7 +7405,7 @@
             } else {
                 mInLayout = false;
                 if (mLayoutNeeded) {
-                    requestAnimationLocked(0);
+                    requestTraversalLocked();
                 }
             }
             if (mWindowsChanged && !mWindowChangeListeners.isEmpty()) {
@@ -8822,10 +8838,9 @@
             needRelayout = adjustWallpaperWindowsLocked() != 0;
         }
         if (needRelayout) {
-            requestAnimationLocked(0);
+            requestTraversalLocked();
         } else if (animating) {
-            final int refreshTimeUs = (int)(1000 / mDisplay.getRefreshRate());
-            requestAnimationLocked(currentTime + refreshTimeUs - SystemClock.uptimeMillis());
+            mChoreographer.scheduleAnimation();
         }
 
         // Finally update all input windows now that the window changes have stabilized.
@@ -8944,10 +8959,17 @@
         }
     }
 
-    void requestAnimationLocked(long delay) {
-        if (!mAnimationPending) {
-            mAnimationPending = true;
-            mH.sendMessageDelayed(mH.obtainMessage(H.ANIMATE), delay);
+    void requestTraversalLocked() {
+        if (!mTraversalScheduled) {
+            mTraversalScheduled = true;
+            mH.sendEmptyMessage(H.DO_TRAVERSAL);
+        }
+    }
+
+    @Override
+    public void onAnimate() {
+        synchronized(mWindowMap) {
+            performLayoutAndPlaceSurfacesLocked();
         }
     }
 
@@ -9267,7 +9289,7 @@
             if (DEBUG_ORIENTATION) Slog.i(TAG, "**** Dismissing screen rotation animation");
             if (mScreenRotationAnimation.dismiss(mFxSession, MAX_ANIMATION_DURATION,
                     mTransitionAnimationScale, mCurDisplayWidth, mCurDisplayHeight)) {
-                requestAnimationLocked(0);
+                mChoreographer.scheduleAnimation();
             } else {
                 mScreenRotationAnimation = null;
                 updateRotation = true;
@@ -9759,9 +9781,10 @@
             pw.print("  mLastWindowForcedOrientation"); pw.print(mLastWindowForcedOrientation);
                     pw.print(" mForcedAppOrientation="); pw.println(mForcedAppOrientation);
             pw.print("  mDeferredRotationPauseCount="); pw.println(mDeferredRotationPauseCount);
-            pw.print("  mAnimationPending="); pw.print(mAnimationPending);
+            pw.print("  mTraversalScheduled="); pw.print(mTraversalScheduled);
                     pw.print(" mWindowAnimationScale="); pw.print(mWindowAnimationScale);
                     pw.print(" mTransitionWindowAnimationScale="); pw.println(mTransitionAnimationScale);
+                    pw.print(" mAnimatorDurationScale="); pw.println(mAnimatorDurationScale);
             pw.print("  mNextAppTransition=0x");
                     pw.print(Integer.toHexString(mNextAppTransition));
                     pw.print(" mAppTransitionReady="); pw.println(mAppTransitionReady);
diff --git a/services/java/com/android/server/wm/WindowState.java b/services/java/com/android/server/wm/WindowState.java
index 1067cad..6868cf6 100644
--- a/services/java/com/android/server/wm/WindowState.java
+++ b/services/java/com/android/server/wm/WindowState.java
@@ -1593,7 +1593,7 @@
             mService.applyAnimationLocked(this, WindowManagerPolicy.TRANSIT_ENTER, true);
         }
         if (requestAnim) {
-            mService.requestAnimationLocked(0);
+            mService.mChoreographer.scheduleAnimation();
         }
         return true;
     }
@@ -1634,7 +1634,7 @@
             }
         }
         if (requestAnim) {
-            mService.requestAnimationLocked(0);
+            mService.mChoreographer.scheduleAnimation();
         }
         return true;
     }