[cc]Replace use of SurfaceFactory with CompositorFrameSinkSupport in tests

cc/surfaces/compositor_frame_sink_support.h

Index: cc/surfaces/compositor_frame_sink_support.h
diff --git a/cc/surfaces/compositor_frame_sink_support.h b/cc/surfaces/compositor_frame_sink_support.h
index bdafb4933e6c0f752edc1fde38a9d63fd003d6b5..99d0f0b305abc24d2c4310835a181a94fea31bdd 100644
--- a/cc/surfaces/compositor_frame_sink_support.h
+++ b/cc/surfaces/compositor_frame_sink_support.h
@@ -56,6 +56,8 @@ class CC_SURFACES_EXPORT CompositorFrameSinkSupport
   void ForceReclaimResources();
   void ClaimTemporaryReference(const SurfaceId& surface_id);
 
+  BeginFrameSource* begin_frame_source() { return begin_frame_source_; }

[Fady Samuel, 2017/04/04 22:48:16]

BeginFrameSourceForTesting() const

[Alex Z., 2017/04/05 14:38:55]

Done.

+
  private:
   // Update surface references with SurfaceManager for current CompositorFrame
   // that has |local_surface_id|. UpdateReferences() must be called on