cc: Avoid expensive RenderingStats collection.

cc/nine_patch_layer.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/nine_patch_layer.h"
 
 #include "cc/layer_tree_host.h"
 #include "cc/nine_patch_layer_impl.h"
 #include "cc/prioritized_resource.h"
 #include "cc/resource_update.h"
@@ skipping 39 matching lines @@
     }
 }
 
 void NinePatchLayer::setBitmap(const SkBitmap& bitmap, const gfx::Rect& aperture) {
     m_bitmap = bitmap;
     m_imageAperture = aperture;
     m_bitmapDirty = true;
     setNeedsDisplay();
 }
 
-void NinePatchLayer::update(ResourceUpdateQueue& queue, const OcclusionTracker* occlusion, RenderingStats& stats)
+void NinePatchLayer::update(ResourceUpdateQueue& queue, const OcclusionTracker* occlusion, RenderingStats* stats)
 {
     createUpdaterIfNeeded();
 
     if (m_resource && (m_bitmapDirty || m_resource->texture()->resourceId() == 0)) {
         gfx::Rect contentRect(gfx::Point(), gfx::Size(m_bitmap.width(), m_bitmap.height()));
         ResourceUpdate upload = ResourceUpdate::Create(m_resource->texture(), &m_bitmap, contentRect, contentRect, gfx::Vector2d());
         queue.appendFullUpload(upload);
         m_bitmapDirty = false;
     }
 }
@@ skipping 29 matching lines @@
     NinePatchLayerImpl* layerImpl = static_cast<NinePatchLayerImpl*>(layer);
 
     if (m_resource) {
         DCHECK(!m_bitmap.isNull());
         layerImpl->setResourceId(m_resource->texture()->resourceId());
         layerImpl->setLayout(gfx::Size(m_bitmap.width(), m_bitmap.height()), m_imageAperture);
     }
 }
 
 }