cc: Improve frame/commit accounting

cc/single_thread_proxy.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 29 matching lines @@
     virtual void didAddAnimation() OVERRIDE;
     virtual void start() OVERRIDE;
     virtual void stop() OVERRIDE;
     virtual size_t maxPartialTextureUpdates() const OVERRIDE;
     virtual void acquireLayerTextures() OVERRIDE { }
     virtual void forceSerializeOnSwapBuffers() OVERRIDE;
 
     // CCLayerTreeHostImplClient implementation
     virtual void didLoseContextOnImplThread() OVERRIDE { }
     virtual void onSwapBuffersCompleteOnImplThread() OVERRIDE;
-    virtual void onVSyncParametersChanged(double monotonicTimebase, double intervalInSeconds) OVERRIDE { }
+    virtual void onVSyncParametersChanged(double monotonicTimebase, double intervalInSeconds) OVERRIDE;
     virtual void onCanDrawStateChanged(bool canDraw) OVERRIDE { }
     virtual void setNeedsRedrawOnImplThread() OVERRIDE;
     virtual void setNeedsCommitOnImplThread() OVERRIDE;
     virtual void postAnimationEventsToMainThreadOnImplThread(scoped_ptr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE;
     virtual bool reduceContentsTextureMemoryOnImplThread(size_t limitBytes) OVERRIDE;
 
     // Called by the legacy path where RenderWidget does the scheduling.
     void compositeImmediately();
 
 private:
@@ skipping 13 matching lines @@
     scoped_ptr<CCGraphicsContext> m_contextBeforeInitialization;
 
     // Used on the CCThread, but checked on main thread during initialization/shutdown.
     scoped_ptr<CCLayerTreeHostImpl> m_layerTreeHostImpl;
     bool m_rendererInitialized;
     RendererCapabilities m_RendererCapabilitiesForMainThread;
 
     bool m_nextFrameIsNewlyCommittedFrame;
 
     base::TimeDelta m_totalCommitTime;
-    size_t m_totalCommitCount;
+    int64_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