cc: Allow sending BeginMainFrame before draw or activation

cc/scheduler/scheduler.cc

Index: cc/scheduler/scheduler.cc
diff --git a/cc/scheduler/scheduler.cc b/cc/scheduler/scheduler.cc
index d31f042e76180bc872aa2aa336614306b13ef39a..125a06a2dd6afaa97bddc02009c27cd82d6e074d 100644
--- a/cc/scheduler/scheduler.cc
+++ b/cc/scheduler/scheduler.cc
@@ -372,7 +372,10 @@ void Scheduler::ProcessScheduledActions() {
   } while (action != SchedulerStateMachine::ACTION_NONE);
 
   SetupNextBeginImplFrameIfNeeded();
-  client_->DidAnticipatedDrawTimeChange(AnticipatedDrawTime());
+
+  if (SchedulerStateMachine::COMMIT_STATE_FRAME_IN_PROGRESS ==

[enne (OOO), 2014/01/23 21:51:55]

Why do you only update the anticipated draw time during commit?

[brianderson, 2014/01/23 23:31:35]

It avoided a PostTask storm of some sort. I'll see if there is a better
solution.

+      state_machine_.commit_state())
+    client_->DidAnticipatedDrawTimeChange(AnticipatedDrawTime());
 
   if (state_machine_.ShouldTriggerBeginImplFrameDeadlineEarly())
     PostBeginImplFrameDeadline(base::TimeTicks());