Switching to CompositorFrameSinkSupport in android_webview::SurfacesInstance

cc/surfaces/compositor_frame_sink_support_client.h

Index: cc/surfaces/compositor_frame_sink_support_client.h
diff --git a/cc/surfaces/compositor_frame_sink_support_client.h b/cc/surfaces/compositor_frame_sink_support_client.h
index e3f6dab23e141af7ecbce53857713369cd04b3dc..1a67b7b33881bd5bce8113237c243e29de27362b 100644
--- a/cc/surfaces/compositor_frame_sink_support_client.h
+++ b/cc/surfaces/compositor_frame_sink_support_client.h
@@ -6,6 +6,7 @@
 #define CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_
 
 #include "cc/resources/returned_resource.h"
+#include "cc/surfaces/display_client.h"
 
 namespace cc {
 
@@ -31,6 +32,12 @@ class CompositorFrameSinkSupportClient {
   // Called when surface is being scheduled for a draw.
   virtual void WillDrawSurface() = 0;
 
+  // DisplayClient methods.

[danakj, 2017/01/24 18:23:06]

Hm this is weird too. Why is the CompositorFrameSinkSupport a DisplayClient if
its just going to pass things thru?

+  virtual void DisplayOutputSurfaceLost() {}
+  virtual void DisplayWillDrawAndSwap(bool will_draw_and_swap,
+                                      const RenderPassList& render_passes) {}
+  virtual void DisplayDidDrawAndSwap() {}
+
  protected:
   virtual ~CompositorFrameSinkSupportClient() {}
 };