Refactoring the way begin frame sources inside scheduler work.

cc/trees/thread_proxy.h

Index: cc/trees/thread_proxy.h
diff --git a/cc/trees/thread_proxy.h b/cc/trees/thread_proxy.h
index ff7325c4291032cbd263309fa278ed7d3e1f060d..2f91ec6ccfcaed81506c4f704afc585c7ad03bcf 100644
--- a/cc/trees/thread_proxy.h
+++ b/cc/trees/thread_proxy.h
@@ -180,7 +180,6 @@ class CC_EXPORT ThreadProxy : public Proxy,
   virtual void CommitVSyncParameters(base::TimeTicks timebase,
                                      base::TimeDelta interval) OVERRIDE;
   virtual void SetEstimatedParentDrawTime(base::TimeDelta draw_time) OVERRIDE;
-  virtual void BeginFrame(const BeginFrameArgs& args) OVERRIDE;
   virtual void SetMaxSwapsPendingOnImplThread(int max) OVERRIDE;
   virtual void DidSwapBuffersOnImplThread() OVERRIDE;
   virtual void DidSwapBuffersCompleteOnImplThread() OVERRIDE;
@@ -210,7 +209,7 @@ class CC_EXPORT ThreadProxy : public Proxy,
   virtual void DidManageTiles() OVERRIDE;
 
   // SchedulerClient implementation
-  virtual void SetNeedsBeginFrame(bool enable) OVERRIDE;
+  virtual BeginFrameSource* GetExternalBeginFrameSource() OVERRIDE;

[Sami, 2014/09/18 13:55:09]

nit: Drop the |Get|, it's cleaner :)

[mithro-old, 2014/09/19 02:45:39]

Done.

   virtual void WillBeginImplFrame(const BeginFrameArgs& args) OVERRIDE;
   virtual void ScheduledActionSendBeginMainFrame() OVERRIDE;
   virtual DrawResult ScheduledActionDrawAndSwapIfPossible() OVERRIDE;