Unified BeginFrame scheduling

cc/scheduler/scheduler.h

Index: cc/scheduler/scheduler.h
diff --git a/cc/scheduler/scheduler.h b/cc/scheduler/scheduler.h
index 311a71d4b0a66135b84cd0f5f0e1ea9279548d4c..d276403012313461e91b62d4d5281b0c7940c125 100644
--- a/cc/scheduler/scheduler.h
+++ b/cc/scheduler/scheduler.h
@@ -46,6 +46,7 @@ class SchedulerClient {
   virtual base::TimeDelta BeginMainFrameToCommitDurationEstimate() = 0;
   virtual base::TimeDelta CommitToActivateDurationEstimate() = 0;
   virtual void DidBeginImplFrameDeadline() = 0;
+  virtual void SendBeginFrame(const BeginFrameArgs& args) = 0;
 
  protected:
   virtual ~SchedulerClient() {}
@@ -143,6 +144,8 @@ class CC_EXPORT Scheduler {
     state_machine_.SetContinuousPainting(continuous_painting);
   }
 
+  void BeginFrameRequested();
+
  protected:
   class CC_EXPORT SyntheticBeginFrameSource : public TimeSourceClient {
    public:
@@ -208,6 +211,8 @@ class CC_EXPORT Scheduler {
   bool inside_process_scheduled_actions_;
   SchedulerStateMachine::Action inside_action_;
 
+  bool begin_frame_requested_;

[brianderson, 2014/08/21 00:13:59]

Store this in the state machine as children_need_begin_frames_ instead.

[simonhong, 2014/08/26 08:24:47]

Done.

+
  private:
   base::TimeTicks AdjustedBeginImplFrameDeadline(
       const BeginFrameArgs& args,