cc: Measure compositor timing with finer granularity

components/view_manager/surfaces/surfaces_scheduler.h

Index: components/view_manager/surfaces/surfaces_scheduler.h
diff --git a/components/view_manager/surfaces/surfaces_scheduler.h b/components/view_manager/surfaces/surfaces_scheduler.h
index 7f069ad5e39c101b178e5bc1f2d9d9bbeedb6a9c..286e82010669142638f45b2d7825445891f6759f 100644
--- a/components/view_manager/surfaces/surfaces_scheduler.h
+++ b/components/view_manager/surfaces/surfaces_scheduler.h
@@ -11,6 +11,7 @@
 
 namespace cc {
 class Display;
+class RenderingStatsInstrumentation;
 }
 
 namespace surfaces {
@@ -42,15 +43,13 @@ class SurfacesScheduler : public cc::SchedulerClient {
   void ScheduledActionPrepareTiles() override;
   void ScheduledActionInvalidateOutputSurface() override;
   void DidAnticipatedDrawTimeChange(base::TimeTicks time) override;
-  base::TimeDelta DrawDurationEstimate() override;
-  base::TimeDelta BeginMainFrameToCommitDurationEstimate() override;
-  base::TimeDelta CommitToActivateDurationEstimate() override;
   void SendBeginFramesToChildren(const cc::BeginFrameArgs& args) override;
   void SendBeginMainFrameNotExpectedSoon() override;
 
   std::set<cc::Display*> displays_;
   scoped_ptr<cc::Scheduler> scheduler_;
-  base::TimeDelta draw_estimate_;
+  scoped_ptr<cc::RenderingStatsInstrumentation>
+      rendering_stats_instrumentation_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfacesScheduler);
 };