Don't PushProperties every commit for animating layers

cc/test/animation_test_common.h

Index: cc/test/animation_test_common.h
diff --git a/cc/test/animation_test_common.h b/cc/test/animation_test_common.h
index a686b467cada9f98d794618d3b8b976e9c58335f..008af87d0db3142745a7695e9680e6e2860f61eb 100644
--- a/cc/test/animation_test_common.h
+++ b/cc/test/animation_test_common.h
@@ -73,16 +73,22 @@ class FakeLayerAnimationValueObserver : public LayerAnimationValueObserver {
   virtual void OnFilterAnimated(const FilterOperations& filters) OVERRIDE;
   virtual void OnOpacityAnimated(float opacity) OVERRIDE;
   virtual void OnTransformAnimated(const gfx::Transform& transform) OVERRIDE;
+  virtual void OnAnimationWaitingForDeletion() OVERRIDE;
   virtual bool IsActive() const OVERRIDE;
 
   const FilterOperations& filters() const { return filters_; }
   float opacity() const  { return opacity_; }
   const gfx::Transform& transform() const { return transform_; }
 
+  bool animation_waiting_for_deletion() {
+    return animation_waiting_for_deletion_;
+  }
+
  private:
   FilterOperations filters_;
   float opacity_;
   gfx::Transform transform_;
+  bool animation_waiting_for_deletion_;
 };
 
 class FakeInactiveLayerAnimationValueObserver