Bug 1039159 - Ensure we don't touch the velocity queue from the compositor thread. Thanks to :jerry for finding this. r=botond

gfx/layers/apz/src/AsyncPanZoomController.cpp

@@ -2359,9 +2359,7 @@ void AsyncPanZoomController::NotifyLayersUpdated(const FrameMetrics& aLayerMetri
     mPaintThrottler.ClearHistory();
     mPaintThrottler.SetMaxDurations(gfxPrefs::APZNumPaintDurationSamples());
 
-    mX.CancelTouch();
-    mY.CancelTouch();
-    SetState(NOTHING);
+    CancelAnimation();
 
     mFrameMetrics = aLayerMetrics;
     mLastDispatchedPaintMetrics = aLayerMetrics;