cc: Improve frame/commit accounting

cc/CCSingleThreadProxy.h

 // 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.
 
 #ifndef CCSingleThreadProxy_h
 #define CCSingleThreadProxy_h
 
 #include "CCAnimationEvents.h"
 #include "CCLayerTreeHostImpl.h"
 #include "CCProxy.h"
@@ skipping 64 matching lines @@
     OwnPtr<CCGraphicsContext> m_contextBeforeInitialization;
 
     // Used on the CCThread, but checked on main thread during initialization/shutdown.
     OwnPtr<CCLayerTreeHostImpl> m_layerTreeHostImpl;
     bool m_rendererInitialized;
     RendererCapabilities m_RendererCapabilitiesForMainThread;
 
     bool m_nextFrameIsNewlyCommittedFrame;
 
     base::TimeDelta m_totalCommitTime;
-    size_t m_totalCommitCount;
+    uint64_t m_totalCommitCount;
 };
 
 // For use in the single-threaded case. In debug builds, it pretends that the
 // code is running on the impl thread to satisfy assertion checks.
 class DebugScopedSetImplThread {
 public:
     DebugScopedSetImplThread()
     {
 #if !ASSERT_DISABLED
         CCProxy::setCurrentThreadIsImplThread(true);
@@ skipping 30 matching lines @@
 // satisfy assertion checks
 class DebugScopedSetImplThreadAndMainThreadBlocked {
 private:
     DebugScopedSetImplThread m_implThread;
     DebugScopedSetMainThreadBlocked m_mainThreadBlocked;
 };
 
 } // namespace cc
 
 #endif