Remove top controls layer from cc/.

cc/top_controls_manager.h

 // Copyright 2013 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_TOP_CONTROLS_MANAGER_H_
 #define CC_TOP_CONTROLS_MANAGER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "cc/layer_impl.h"
@@ skipping 10 matching lines @@
 class LayerTreeImpl;
 class TopControlsManagerClient;
 
 // Manages the position of the top controls.
 class CC_EXPORT TopControlsManager {
  public:
   static scoped_ptr<TopControlsManager> Create(TopControlsManagerClient* client,
                                                float top_controls_height);
   virtual ~TopControlsManager();
 
-  void set_content_layer_id(int id) { content_layer_id_ = id; }
   float controls_top_offset() { return controls_top_offset_; }
   float content_top_offset() { return content_top_offset_; }
   float is_overlay_mode() { return is_overlay_mode_; }
   KeyframedFloatAnimationCurve* animation() {
     return top_controls_animation_.get();
   }
 
   void UpdateDrawPositions();
 
   void ScrollBegin();
@@ skipping 11 matching lines @@
   void ResetAnimations();
   LayerImpl* RootScrollLayer();
   float RootScrollLayerTotalScrollY();
   void SetupAnimation(bool show_controls);
   void StartAnimationIfNecessary();
 
   TopControlsManagerClient* client_;  // The client manages the lifecycle of
                                       // this.
 
   scoped_ptr<KeyframedFloatAnimationCurve> top_controls_animation_;
-  int content_layer_id_;
   bool is_showing_animation_;
   bool is_overlay_mode_;
   float controls_top_offset_;
   float content_top_offset_;
   float top_controls_height_;
   bool scroll_readjustment_enabled_;
   float previous_root_scroll_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(TopControlsManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_TOP_CONTROLS_MANAGER_H_