cc : Use transform node data to determine which transform wins at commit

cc/layers/layer_impl.cc

Index: cc/layers/layer_impl.cc
diff --git a/cc/layers/layer_impl.cc b/cc/layers/layer_impl.cc
index 1f09776d36c15e72ee3dbbda3c76b37808c57ba0..d5e2c9c7fa88b935f57c849d3b07fab74dc1dffd 100644
--- a/cc/layers/layer_impl.cc
+++ b/cc/layers/layer_impl.cc
@@ -644,7 +644,6 @@ void LayerImpl::UpdatePropertyTreeForScrollingAndAnimationIfNeeded() {
     UpdatePropertyTreeScrollOffset();
 
   if (HasAnyAnimationTargetingProperty(TargetProperty::TRANSFORM)) {
-    UpdatePropertyTreeTransform();
     UpdatePropertyTreeTransformIsAnimated(
         HasPotentiallyRunningTransformAnimation());
   }
@@ -682,6 +681,7 @@ void LayerImpl::OnTransformAnimated(const gfx::Transform& transform) {
   SetTransform(transform);
   UpdatePropertyTreeTransform();
   was_ever_ready_since_last_transform_animation_ = false;
+  layer_tree_impl()->AddToTransformAnimationsMap(id(), transform);
   if (old_transform != transform) {
     SetNeedsPushProperties();
     layer_tree_impl()->set_needs_update_draw_properties();