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

cc/layers/content_layer.h

 // Copyright 2010 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_LAYERS_CONTENT_LAYER_H_
 #define CC_LAYERS_CONTENT_LAYER_H_
 
 #include "base/basictypes.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/tiled_layer.h"
@@ skipping 26 matching lines @@
 class CC_EXPORT ContentLayer : public TiledLayer {
  public:
   static scoped_refptr<ContentLayer> Create(ContentLayerClient* client);
 
   void ClearClient() { client_ = NULL; }
 
   virtual bool DrawsContent() const OVERRIDE;
   virtual void SetTexturePriorities(const PriorityCalculator& priority_calc)
       OVERRIDE;
   virtual void Update(ResourceUpdateQueue* queue,
-                      const OcclusionTracker* occlusion,
-                      RenderingStats* stats) OVERRIDE;
+                      const OcclusionTracker* occlusion) OVERRIDE;
   virtual bool NeedMoreUpdates() OVERRIDE;
 
   virtual void SetContentsOpaque(bool contents_opaque) OVERRIDE;
 
  protected:
   explicit ContentLayer(ContentLayerClient* client);
   virtual ~ContentLayer();
 
  private:
   // TiledLayer implementation.
   virtual LayerUpdater* Updater() const OVERRIDE;
   virtual void CreateUpdaterIfNeeded() OVERRIDE;
 
   ContentLayerClient* client_;
   scoped_refptr<LayerUpdater> updater_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentLayer);
 };
 
 }
 #endif  // CC_LAYERS_CONTENT_LAYER_H_