GPU benchmarks should track the frequency of impl-thread vs. main-thread scrolls

webkit/compositor_bindings/WebLayerTreeViewImpl.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 "WebLayerTreeViewImpl.h"
 
 #include "CCFontAtlas.h"
 #include "CCInputHandler.h"
 #include "CCLayerTreeHost.h"
@@ skipping 159 matching lines @@
     CCRenderingStats ccStats;
     m_layerTreeHost->renderingStats(&ccStats);
 
     stats.numAnimationFrames = ccStats.numAnimationFrames;
     stats.numFramesSentToScreen = ccStats.numFramesSentToScreen;
     stats.droppedFrameCount = ccStats.droppedFrameCount;
     stats.totalPaintTimeInSeconds = ccStats.totalPaintTimeInSeconds;
     stats.totalRasterizeTimeInSeconds = ccStats.totalRasterizeTimeInSeconds;
     stats.totalCommitTimeInSeconds = ccStats.totalCommitTimeInSeconds;
     stats.totalCommitCount = ccStats.totalCommitCount;
+    stats.numImplThreadScrolls = ccStats.numImplThreadScrolls;
+    stats.numMainThreadScrolls = ccStats.numMainThreadScrolls;
 }
 
 void WebLayerTreeViewImpl::setFontAtlas(SkBitmap bitmap, WebRect asciiToWebRectTable[128], int fontHeight)
 {
     IntRect asciiToRectTable[128];
     for (int i = 0; i < 128; ++i)
         asciiToRectTable[i] = convert(asciiToWebRectTable[i]);
     OwnPtr<CCFontAtlas> fontAtlas = CCFontAtlas::create(bitmap, asciiToRectTable, fontHeight);
     m_layerTreeHost->setFontAtlas(fontAtlas.release());
 }
@@ skipping 65 matching lines @@
 {
     m_client->didCompleteSwapBuffers();
 }
 
 void WebLayerTreeViewImpl::scheduleComposite()
 {
     m_client->scheduleComposite();
 }
 
 } // namespace WebKit