cc: Avoid expensive RenderingStats collection.

cc/texture_layer.cc

 // 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.
 
 #include "cc/texture_layer.h"
 
 #include "cc/layer_tree_host.h"
 #include "cc/texture_layer_client.h"
 #include "cc/texture_layer_impl.h"
 #include "cc/thread.h"
@@ skipping 144 matching lines @@
     if (m_textureId && layerTreeHost() && host != layerTreeHost())
         layerTreeHost()->acquireLayerTextures();
     Layer::setLayerTreeHost(host);
 }
 
 bool TextureLayer::drawsContent() const
 {
     return (m_client || m_textureId || !m_textureMailbox.IsEmpty()) && !m_contextLost && Layer::drawsContent();
 }
 
-void TextureLayer::update(ResourceUpdateQueue& queue, const OcclusionTracker*, RenderingStats&)
+void TextureLayer::update(ResourceUpdateQueue& queue, const OcclusionTracker*, RenderingStats*)
 {
     if (m_client) {
         m_textureId = m_client->prepareTexture(queue);
         m_contextLost = m_client->context()->getGraphicsResetStatusARB() != GL_NO_ERROR;
     }
 
     m_needsDisplay = false;
 }
 
 void TextureLayer::pushPropertiesTo(LayerImpl* layer)
@@ skipping 25 matching lines @@
     // can block too for simplicity.
     return drawsContent();
 }
 
 bool TextureLayer::canClipSelf() const
 {
     return true;
 }
 
 }  // namespace cc