Update cc snapshot to r127918

cc/CCSingleThreadProxy.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 "CCSingleThreadProxy.h"
 
 #include "CCDrawQuad.h"
 #include "CCGraphicsContext.h"
 #include "CCLayerTreeHost.h"
 #include "CCTextureUpdateController.h"
 #include "CCTimer.h"
 #include "TraceEvent.h"
 #include <wtf/CurrentTime.h>
 
 using namespace WTF;
 
 namespace WebCore {
 
 PassOwnPtr<CCProxy> CCSingleThreadProxy::create(CCLayerTreeHost* layerTreeHost)
 {
     return adoptPtr(new CCSingleThreadProxy(layerTreeHost));
 }
 
 CCSingleThreadProxy::CCSingleThreadProxy(CCLayerTreeHost* layerTreeHost)
     : m_layerTreeHost(layerTreeHost)
     , m_contextLost(false)
-    , m_compositorIdentifier(-1)
     , m_rendererInitialized(false)
     , m_nextFrameIsNewlyCommittedFrame(false)
 {
     TRACE_EVENT0("cc", "CCSingleThreadProxy::CCSingleThreadProxy");
     ASSERT(CCProxy::isMainThread());
 }
 
 void CCSingleThreadProxy::start()
 {
     DebugScopedSetImplThread impl;
@@ skipping 291 matching lines @@
 
 void CCSingleThreadProxy::didSwapFrame()
 {
     if (m_nextFrameIsNewlyCommittedFrame) {
         m_nextFrameIsNewlyCommittedFrame = false;
         m_layerTreeHost->didCommitAndDrawFrame();
     }
 }
 
 }