cc: Avoid expensive RenderingStats collection.

cc/image_layer_updater.cc

 // 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.
 
 #include "cc/image_layer_updater.h"
 #include "cc/prioritized_resource.h"
 #include "cc/resource_update_queue.h"
 
 namespace cc {
 
 ImageLayerUpdater::Resource::Resource(ImageLayerUpdater* updater, scoped_ptr<PrioritizedResource> texture)
     : LayerUpdater::Resource(texture.Pass())
     , m_updater(updater)
 {
 }
 
 ImageLayerUpdater::Resource::~Resource()
 {
 }
 
-void ImageLayerUpdater::Resource::update(ResourceUpdateQueue& queue, const gfx::Rect& sourceRect, const gfx::Vector2d& destOffset, bool partialUpdate, RenderingStats&)
+void ImageLayerUpdater::Resource::update(ResourceUpdateQueue& queue, const gfx::Rect& sourceRect, const gfx::Vector2d& destOffset, bool partialUpdate, RenderingStats*)
 {
     m_updater->updateTexture(queue, texture(), sourceRect, destOffset, partialUpdate);
 }
 
 // static
 scoped_refptr<ImageLayerUpdater> ImageLayerUpdater::create()
 {
     return make_scoped_refptr(new ImageLayerUpdater());
 }
 
@@ skipping 23 matching lines @@
     else
         queue.appendFullUpload(upload);
 }
 
 void ImageLayerUpdater::setBitmap(const SkBitmap& bitmap)
 {
     m_bitmap = bitmap;
 }
 
 }