cc: Use Element Id to Record Animation Changes

cc/layers/layer_impl.h

Index: cc/layers/layer_impl.h
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index d8010996ec46a58563110a985c8fc02b22c91cfa..c977c56e2ff04c76895a80f830e1d22fa82af492 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -85,8 +85,6 @@ class CC_EXPORT LayerImpl {
 
   // Interactions with attached animations.
   gfx::ScrollOffset ScrollOffsetForAnimation() const;
-  void OnIsAnimatingChanged(const PropertyAnimationState& mask,
-                            const PropertyAnimationState& state);
   bool IsActive() const;
 
   void set_property_tree_sequence_number(int sequence_number) {}
@@ -120,7 +118,6 @@ class CC_EXPORT LayerImpl {
 
   bool is_clipped() const { return draw_properties_.is_clipped; }
 
-  void UpdatePropertyTreeTransformIsAnimated(bool is_animated);
   void UpdatePropertyTreeScrollOffset();
 
   LayerTreeImpl* layer_tree_impl() const { return layer_tree_impl_; }