Ref count layer animation controllers.

cc/layer_tree_impl.cc

Index: cc/layer_tree_impl.cc
diff --git a/cc/layer_tree_impl.cc b/cc/layer_tree_impl.cc
index 0c68bb9a6c765779d90dcf30bf5fe0e5bb97b320..ddbe2edb9936dc72a834f5f4c3af754c1f5d5b98 100644
--- a/cc/layer_tree_impl.cc
+++ b/cc/layer_tree_impl.cc
@@ -160,5 +160,32 @@ DebugRectHistory* LayerTreeImpl::debug_rect_history() const {
   return layer_tree_host_impl_->debugRectHistory();
 }
 
+scoped_refptr<LayerAnimationController> LayerTreeImpl::GetAnimationControllerForId(int id) {
+  AnimationRegistrar* registrar = layer_tree_host_impl_;
+  return registrar->GetAnimationControllerForId(id);
+}
+void LayerTreeImpl::DidActivateAnimationController(
+    LayerAnimationController* controller) {
+  AnimationRegistrar* registrar = layer_tree_host_impl_;
+  registrar->DidActivateAnimationController(controller);
+}
+
+void LayerTreeImpl::DidDeactivateAnimationController(
+    LayerAnimationController* controller) {
+  AnimationRegistrar* registrar = layer_tree_host_impl_;
+  registrar->DidDeactivateAnimationController(controller);
+}
+
+void LayerTreeImpl::RegisterAnimationController(
+    LayerAnimationController* controller) {
+  AnimationRegistrar* registrar = layer_tree_host_impl_;
+  registrar->RegisterAnimationController(controller);
+}
+
+void LayerTreeImpl::UnregisterAnimationController(
+    LayerAnimationController* controller) {
+  AnimationRegistrar* registrar = layer_tree_host_impl_;
+  registrar->UnregisterAnimationController(controller);
+}
 
 } // namespace cc