cc: Switch RenderingStats collection in Layer::Update() to RenderingStatsInstrumentation

cc/trees/layer_tree_host.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_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 234 matching lines @@
 
  private:
   typedef std::vector<scoped_refptr<Layer> > LayerList;
 
   bool InitializeProxy(scoped_ptr<Proxy> proxy);
   void InitializeRenderer();
 
   bool PaintLayerContents(const LayerList& render_surface_layer_list,
                           ResourceUpdateQueue* quue);
   bool PaintMasksForRenderSurface(Layer* render_surface_layer,
-                                  ResourceUpdateQueue* queue,
-                                  RenderingStats* stats);
+                                  ResourceUpdateQueue* queue);
 
   void UpdateLayers(Layer* root_layer, ResourceUpdateQueue* queue);
   void UpdateHudLayer();
   void TriggerPrepaint();
 
   void PrioritizeTextures(const LayerList& render_surface_layer_list,
                           OverdrawMetrics* metrics); 
   void SetPrioritiesForSurfaces(size_t surface_memory_bytes);
   void SetPrioritiesForLayers(const LayerList& update_list);
   size_t CalculateMemoryForRenderSurfaces(const LayerList& update_list);
@@ skipping 55 matching lines @@
   size_t partial_texture_update_requests_;
 
   scoped_ptr<AnimationRegistrar> animation_registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_