Adaptively throttle texture uploads

cc/CCSingleThreadProxy.h

Index: cc/CCSingleThreadProxy.h
diff --git a/cc/CCSingleThreadProxy.h b/cc/CCSingleThreadProxy.h
index acdf4cfaee5338a2aad5fcb4622f721433014726..35fd98021bdff1e038184f3457f75689874b2db4 100644
--- a/cc/CCSingleThreadProxy.h
+++ b/cc/CCSingleThreadProxy.h
@@ -30,7 +30,7 @@ public:
     virtual void setVisible(bool) OVERRIDE;
     virtual bool initializeRenderer() OVERRIDE;
     virtual bool recreateContext() OVERRIDE;
-    virtual void implSideRenderingStats(CCRenderingStats&) OVERRIDE;
+    virtual void renderingStats(CCRenderingStats&) OVERRIDE;
     virtual const RendererCapabilities& rendererCapabilities() const OVERRIDE;
     virtual void loseContext() OVERRIDE;
     virtual void setNeedsAnimate() OVERRIDE;
@@ -40,7 +40,6 @@ public:
     virtual void didAddAnimation() OVERRIDE;
     virtual void start() OVERRIDE;
     virtual void stop() OVERRIDE;
-    virtual size_t maxPartialTextureUpdates() const OVERRIDE { return std::numeric_limits<size_t>::max(); }
     virtual void acquireLayerTextures() OVERRIDE { }
     virtual void forceSerializeOnSwapBuffers() OVERRIDE;
 
@@ -78,6 +77,10 @@ private:
     RendererCapabilities m_RendererCapabilitiesForMainThread;
 
     bool m_nextFrameIsNewlyCommittedFrame;
+
+    // Statistics
+    double m_totalCommitTime;
+    size_t m_totalCommitCount;
 };
 
 // For use in the single-threaded case. In debug builds, it pretends that the