LayerTreeHost::SetAnimationEvents should use AnimationRegistrar

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 34334b19ca84c6b7dfaa8b8beb7e344b3e5346e0..2d5f449a8ba322d47bfed875fb18a9140e404669 100644
--- a/cc/layers/layer_impl.cc
+++ b/cc/layers/layer_impl.cc
@@ -63,7 +63,7 @@ LayerImpl::LayerImpl(LayerTreeImpl* tree_impl, int id)
   AnimationRegistrar* registrar = layer_tree_impl_->animationRegistrar();
   layer_animation_controller_ =
       registrar->GetAnimationControllerForId(layer_id_);
-  layer_animation_controller_->AddObserver(this);
+  layer_animation_controller_->AddValueObserver(this);
 }
 
 LayerImpl::~LayerImpl() {
@@ -71,7 +71,7 @@ LayerImpl::~LayerImpl() {
   DCHECK(!between_will_draw_and_did_draw_);
 #endif
   layer_tree_impl_->UnregisterLayer(this);
-  layer_animation_controller_->RemoveObserver(this);
+  layer_animation_controller_->RemoveValueObserver(this);
 }
 
 void LayerImpl::AddChild(scoped_ptr<LayerImpl> child) {
@@ -363,9 +363,6 @@ void LayerImpl::PushPropertiesTo(LayerImpl* layer) {
 
   layer->SetStackingOrderChanged(stacking_order_changed_);
 
-  layer_animation_controller_->PushAnimationUpdatesTo(
-      layer->layer_animation_controller());
-
   // Reset any state that should be cleared for the next update.
   stacking_order_changed_ = false;
   update_rect_ = gfx::RectF();