Move page scale animation from LayerTreeHostImpl to LayerTreeImpl

cc/trees/layer_tree_host_impl.h

 // Copyright 2011 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_TREES_LAYER_TREE_HOST_IMPL_H_
 #define CC_TREES_LAYER_TREE_HOST_IMPL_H_
 
 #include <list>
 #include <set>
 #include <string>
@@ skipping 131 matching lines @@
   virtual void SetRootLayerScrollOffsetDelegate(
       LayerScrollOffsetDelegate* root_layer_scroll_offset_delegate) OVERRIDE;
   virtual void OnRootLayerDelegatedScrollOffsetChanged() OVERRIDE;
   virtual void ScrollEnd() OVERRIDE;
   virtual InputHandler::ScrollStatus FlingScrollBegin() OVERRIDE;
   virtual void MouseMoveAt(const gfx::Point& viewport_point) OVERRIDE;
   virtual void PinchGestureBegin() OVERRIDE;
   virtual void PinchGestureUpdate(float magnify_delta,
                                   const gfx::Point& anchor) OVERRIDE;
   virtual void PinchGestureEnd() OVERRIDE;
-  virtual void StartPageScaleAnimation(const gfx::Vector2d& target_offset,
-                                       bool anchor_point,
-                                       float page_scale,
-                                       base::TimeDelta duration) OVERRIDE;
   virtual void SetNeedsAnimate() OVERRIDE;
   virtual bool IsCurrentlyScrollingLayerAt(
       const gfx::Point& viewport_point,
       InputHandler::ScrollInputType type) OVERRIDE;
   virtual bool HaveTouchEventHandlersAt(
       const gfx::Point& viewport_port) OVERRIDE;
   virtual scoped_ptr<SwapPromiseMonitor> CreateLatencyInfoSwapPromiseMonitor(
       ui::LatencyInfo* latency) OVERRIDE;
 
   // TopControlsManagerClient implementation.
@@ skipping 540 matching lines @@
 
   std::vector<PictureLayerImpl*> picture_layers_;
   std::vector<PictureLayerImpl::Pair> picture_layer_pairs_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_IMPL_H_