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

cc/layers/scrollbar_layer.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_LAYERS_SCROLLBAR_LAYER_H_
 #define CC_LAYERS_SCROLLBAR_LAYER_H_
 
 #include "cc/base/cc_export.h"
 #include "cc/layers/contents_scaling_layer.h"
 #include "cc/layers/scrollbar_theme_painter.h"
@@ skipping 22 matching lines @@
   void SetScrollLayerId(int id);
 
   virtual bool OpacityCanAnimateOnImplThread() const OVERRIDE;
 
   WebKit::WebScrollbar::Orientation Orientation() const;
 
   // Layer interface
   virtual void SetTexturePriorities(const PriorityCalculator& priority_calc)
       OVERRIDE;
   virtual void Update(ResourceUpdateQueue* queue,
-                      const OcclusionTracker* occlusion,
-                      RenderingStats* stats) OVERRIDE;
+                      const OcclusionTracker* occlusion) OVERRIDE;
   virtual void SetLayerTreeHost(LayerTreeHost* host) OVERRIDE;
   virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
   virtual void CalculateContentsScale(float ideal_contents_scale,
                                       bool animating_transform_to_screen,
                                       float* contents_scale_x,
                                       float* contents_scale_y,
                                       gfx::Size* contentBounds) OVERRIDE;
 
   virtual ScrollbarLayer* ToScrollbarLayer() OVERRIDE;
 
  protected:
   ScrollbarLayer(
       scoped_ptr<WebKit::WebScrollbar>,
       scoped_ptr<ScrollbarThemePainter>,
       scoped_ptr<WebKit::WebScrollbarThemeGeometry>,
       int scrollLayerId);
   virtual ~ScrollbarLayer();
 
  private:
   void UpdatePart(CachingBitmapContentLayerUpdater* painter,
                   LayerUpdater::Resource* resource,
                   gfx::Rect rect,
-                  ResourceUpdateQueue* queue,
-                  RenderingStats* stats);
+                  ResourceUpdateQueue* queue);
   void CreateUpdaterIfNeeded();
   gfx::Rect ScrollbarLayerRectToContentRect(gfx::Rect layer_rect) const;
 
   bool is_dirty() const { return !dirty_rect_.IsEmpty(); }
 
   int MaxTextureSize();
   float ClampScaleToMaxTextureSize(float scale);
 
   scoped_ptr<WebKit::WebScrollbar> scrollbar_;
   scoped_ptr<ScrollbarThemePainter> painter_;
@@ skipping 11 matching lines @@
 
   // All the parts of the scrollbar except the thumb
   scoped_ptr<LayerUpdater::Resource> back_track_;
   scoped_ptr<LayerUpdater::Resource> fore_track_;
   scoped_ptr<LayerUpdater::Resource> thumb_;
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_SCROLLBAR_LAYER_H_