Add average commit time to perf tests.

cc/CCLayerTreeHostImpl.cpp

 // Copyright 2011 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 "config.h"
 
 #include "CCLayerTreeHostImpl.h"
 
 #include "CCAppendQuadsData.h"
 #include "CCDamageTracker.h"
@@ skipping 1266 matching lines @@
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         dumpRenderSurfaces(str, indent, layer->children()[i]);
 }
 
 int CCLayerTreeHostImpl::sourceAnimationFrameNumber() const
 {
     return fpsCounter()->currentFrameNumber();
 }
 
-void CCLayerTreeHostImpl::renderingStats(CCRenderingStats& stats) const
+void CCLayerTreeHostImpl::renderingStats(CCRenderingStats* stats) const
 {
-    stats.numFramesSentToScreen = fpsCounter()->currentFrameNumber();
-    stats.droppedFrameCount = fpsCounter()->droppedFrameCount();
+    stats->numFramesSentToScreen = fpsCounter()->currentFrameNumber();
+    stats->droppedFrameCount = fpsCounter()->droppedFrameCount();
 }
 
 void CCLayerTreeHostImpl::animateScrollbars(double monotonicTime)
 {
     animateScrollbarsRecursive(m_rootLayerImpl.get(), monotonicTime);
 }
 
 void CCLayerTreeHostImpl::animateScrollbarsRecursive(CCLayerImpl* layer, double monotonicTime)
 {
     if (!layer)
         return;
 
     CCScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], monotonicTime);
 }
 
 } // namespace cc