cc: Redraw incomplete frames when new texture uploads finish

cc/single_thread_proxy.h

Index: cc/single_thread_proxy.h
diff --git a/cc/single_thread_proxy.h b/cc/single_thread_proxy.h
index b4e1ad9d567750f249f85d8904ee7f4ff3ddd1da..155730c00dbfa8c221982544994ffa3ba9a3735f 100644
--- a/cc/single_thread_proxy.h
+++ b/cc/single_thread_proxy.h
@@ -54,11 +54,14 @@ public:
     virtual void onCanDrawStateChanged(bool canDraw) OVERRIDE { }
     virtual void onHasPendingTreeStateChanged(bool havePendingTree) OVERRIDE;
     virtual void setNeedsRedrawOnImplThread() OVERRIDE;
+    virtual void didSwapUseIncompleteTextureOnImplThread() OVERRIDE;
+    virtual void didUploadVisibleHighResolutionTileOnImplTread() OVERRIDE;
     virtual void setNeedsCommitOnImplThread() OVERRIDE;
     virtual void setNeedsManageTilesOnImplThread() OVERRIDE;
     virtual void postAnimationEventsToMainThreadOnImplThread(scoped_ptr<AnimationEventsVector>, base::Time wallClockTime) OVERRIDE;
     virtual bool reduceContentsTextureMemoryOnImplThread(size_t limitBytes, int priorityCutoff) OVERRIDE;
     virtual void sendManagedMemoryStats() OVERRIDE;
+    virtual bool isInsideDraw() OVERRIDE;
 
     // Called by the legacy path where RenderWidget does the scheduling.
     void compositeImmediately();
@@ -86,6 +89,8 @@ private:
 
     bool m_nextFrameIsNewlyCommittedFrame;
 
+    bool m_insideDraw;
+
     base::TimeDelta m_totalCommitTime;
     size_t m_totalCommitCount;
 };