Remove owning_id from EffectNode and replace it by an opaque stable_id

cc/input/scrollbar_animation_controller.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_
 #define CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_
 
 #include "base/cancelable_callback.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
@@ skipping 105 matching lines @@
 
   void StartAnimation();
   void StopAnimation();
 
   void Show();
 
   void PostDelayedAnimation(AnimationChange animation_change);
 
   bool Captured() const;
 
+  void NotifyScrollbarLayersOfOpacityAnimation(float opacity);
   void ApplyOpacityToScrollbars(float opacity);
 
   ScrollbarAnimationControllerClient* client_;
 
   base::TimeTicks last_awaken_time_;
 
   base::TimeDelta fade_delay_;
 
   base::TimeDelta fade_duration_;
 
@@ skipping 17 matching lines @@
       vertical_controller_;
   std::unique_ptr<SingleScrollbarAnimationControllerThinning>
       horizontal_controller_;
 
   base::WeakPtrFactory<ScrollbarAnimationController> weak_factory_;
 };
 
 }  // namespace cc
 
 #endif  // CC_INPUT_SCROLLBAR_ANIMATION_CONTROLLER_H_