Replace CompositorFrameSinkSupport::WillDrawSurface With RepeatingCallback

content/browser/renderer_host/delegated_frame_host.cc

Index: content/browser/renderer_host/delegated_frame_host.cc
diff --git a/content/browser/renderer_host/delegated_frame_host.cc b/content/browser/renderer_host/delegated_frame_host.cc
index 2db813487f12ff86f0473fb0bb74568365a24df5..c88afcb235eede4113ba5db615d1f33492086702 100644
--- a/content/browser/renderer_host/delegated_frame_host.cc
+++ b/content/browser/renderer_host/delegated_frame_host.cc
@@ -509,7 +509,7 @@ void DelegatedFrameHost::WillDrawSurface(const cc::LocalSurfaceId& id,
   // do not attempt capture if |damage_rect| is empty.  This prevents the draws

[danakj, 2017/04/20 17:56:45]

This comment no longer works

[Alex Z., 2017/04/20 18:10:21]

Done.

   // of parent surfaces from triggering extra frame captures, which can affect
   // smoothness.
-  if (id != local_surface_id_ || damage_rect.IsEmpty())
+  if (id != local_surface_id_)
     return;
   AttemptFrameSubscriberCapture(damage_rect);
 }