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 2150d8286f46f5eb809c9548806f4ae50ac82748..2c9aefe9c20a3bf63442fe7909d2911868fd96e2 100644
--- a/cc/trees/thread_proxy.h
+++ b/cc/trees/thread_proxy.h
@@ -70,6 +70,7 @@ class ThreadProxy : public Proxy,
   virtual void DidLoseOutputSurfaceOnImplThread() OVERRIDE;
   virtual void OnSwapBuffersCompleteOnImplThread() OVERRIDE;
   virtual void BeginFrameOnImplThread(const BeginFrameArgs& args) OVERRIDE;
+  virtual void DidBeginFrameDeadlineOnImplThread() OVERRIDE;
   virtual void OnCanDrawStateChanged(bool can_draw) OVERRIDE;
   virtual void OnHasPendingTreeStateChanged(bool has_pending_tree) OVERRIDE;
   virtual void SetNeedsRedrawOnImplThread() OVERRIDE;
@@ -93,10 +94,12 @@ class ThreadProxy : public Proxy,
   // SchedulerClient implementation
   virtual void SetNeedsBeginFrameOnImplThread(bool enable) OVERRIDE;
   virtual void ScheduledActionSendBeginFrameToMainThread() OVERRIDE;
-  virtual ScheduledActionDrawAndSwapResult
+  virtual DrawSwapReadbackResult
       ScheduledActionDrawAndSwapIfPossible() OVERRIDE;
-  virtual ScheduledActionDrawAndSwapResult ScheduledActionDrawAndSwapForced()
-      OVERRIDE;
+  virtual DrawSwapReadbackResult
+      ScheduledActionDrawAndSwapForced() OVERRIDE;
+  virtual DrawSwapReadbackResult
+      ScheduledActionDrawAndReadback() OVERRIDE;
   virtual void ScheduledActionCommit() OVERRIDE;
   virtual void ScheduledActionCheckForCompletedTileUploads() OVERRIDE;
   virtual void ScheduledActionActivatePendingTreeIfNeeded() OVERRIDE;
@@ -106,6 +109,8 @@ class ThreadProxy : public Proxy,
   virtual base::TimeDelta DrawDurationEstimate() OVERRIDE;
   virtual base::TimeDelta BeginFrameToCommitDurationEstimate() OVERRIDE;
   virtual base::TimeDelta CommitToActivateDurationEstimate() OVERRIDE;
+  virtual void PostBeginFrameDeadline(const base::Closure& closure,
+                                      base::TimeTicks deadline) OVERRIDE;
 
   // ResourceUpdateControllerClient implementation
   virtual void ReadyToFinalizeTextureUpdates() OVERRIDE;
@@ -141,13 +146,14 @@ class ThreadProxy : public Proxy,
   struct CommitPendingRequest;
   struct SchedulerStateRequest;
 
-  void ForceCommitOnImplThread(CompletionEvent* completion);
+  void ForceCommitForReadbackOnImplThread(
+      CompletionEvent* completion,
+      ReadbackRequest *request);
   void StartCommitOnImplThread(
       CompletionEvent* completion,
       ResourceUpdateQueue* queue,
       scoped_refptr<cc::ContextProvider> offscreen_context_provider);
   void BeginFrameAbortedByMainThreadOnImplThread();
-  void RequestReadbackOnImplThread(ReadbackRequest* request);
   void FinishAllRenderingOnImplThread(CompletionEvent* completion);
   void InitializeImplOnImplThread(CompletionEvent* completion);
   void SetLayerTreeHostClientReadyOnImplThread();
@@ -165,8 +171,8 @@ class ThreadProxy : public Proxy,
   void LayerTreeHostClosedOnImplThread(CompletionEvent* completion);
   void AcquireLayerTexturesForMainThreadOnImplThread(
       CompletionEvent* completion);
-  ScheduledActionDrawAndSwapResult ScheduledActionDrawAndSwapInternal(
-      bool forced_draw);
+  DrawSwapReadbackResult ScheduledActionDrawSwapReadbackInternal(
+      bool forced_draw, bool swap_requested, bool readback_requested);
   void ForceSerializeOnSwapBuffersOnImplThread(CompletionEvent* completion);
   void CheckOutputSurfaceStatusOnImplThread();
   void CommitPendingOnImplThreadForTesting(CommitPendingRequest* request);
@@ -210,12 +216,16 @@ class ThreadProxy : public Proxy,
   scoped_ptr<LayerTreeHostImpl> layer_tree_host_impl_;
 
   scoped_ptr<Scheduler> scheduler_on_impl_thread_;
+  bool frame_did_draw_;
 
   // 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 deferred_start_commit_on_impl_thread_;
+
   // Set when the main thread is waiting on a readback.
   ReadbackRequest* readback_request_on_impl_thread_;