cc: Use BeginFrameArgs

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 94fcee5b7c4e7655f3d2a55747886edacfc91da7..5921331e6281f97e3a040b798a160d839fef60e3 100644
--- a/cc/trees/thread_proxy.h
+++ b/cc/trees/thread_proxy.h
@@ -71,6 +71,7 @@ class ThreadProxy : public Proxy,
   virtual void DidLoseOutputSurfaceOnImplThread() OVERRIDE;
   virtual void OnSwapBuffersCompleteOnImplThread() OVERRIDE;
   virtual void BeginFrameOnImplThread(const BeginFrameArgs& args) OVERRIDE;
+  virtual void DidFinishBeginFrameOnImplThread() OVERRIDE;
   virtual void OnCanDrawStateChanged(bool can_draw) OVERRIDE;
   virtual void OnHasPendingTreeStateChanged(bool has_pending_tree) OVERRIDE;
   virtual void SetNeedsRedrawOnImplThread() OVERRIDE;
@@ -105,6 +106,8 @@ class ThreadProxy : public Proxy,
   virtual void ScheduledActionAcquireLayerTexturesForMainThread() OVERRIDE;
   virtual void DidAnticipatedDrawTimeChange(base::TimeTicks time) OVERRIDE;
   virtual base::TimeDelta DrawDurationEstimate() OVERRIDE;
+  virtual void PostBeginFrameDeadline(const base::Closure& closure,
+                                      base::TimeTicks deadline) OVERRIDE;
 
   // ResourceUpdateControllerClient implementation
   virtual void ReadyToFinalizeTextureUpdates() OVERRIDE;
@@ -211,12 +214,16 @@ class ThreadProxy : public Proxy,
   scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl_;
 
   scoped_ptr<Scheduler> scheduler_on_impl_thread_;
+  bool previous_frame_had_checkerboard_;
 
   // Set when the main thread is waiting on a
   // ScheduledActionSendBeginFrameToMainThread to be issued.
   CompletionEvent*
       begin_frame_sent_to_main_thread_completion_event_on_impl_thread_;
 
+  // Set when there is a pending tree on a commit.
+  base::Closure deffered_start_commit_on_impl_thread_;
+
   // Set when the main thread is waiting on a readback.
   ReadbackRequest* readback_request_on_impl_thread_;