Change exo::SurfaceFactoryOwner to exo::ExoCompositorFrameSink

cc/ipc/mojo_compositor_frame_sink.mojom

Index: cc/ipc/mojo_compositor_frame_sink.mojom
diff --git a/cc/ipc/mojo_compositor_frame_sink.mojom b/cc/ipc/mojo_compositor_frame_sink.mojom
index cedd96615e4edc5190470ac314d472cb60c4fd94..f1bad770eedbd41b79585767712b72e51979861c 100644
--- a/cc/ipc/mojo_compositor_frame_sink.mojom
+++ b/cc/ipc/mojo_compositor_frame_sink.mojom
@@ -31,6 +31,8 @@ interface MojoCompositorFrameSink {
   SubmitCompositorFrame(cc.mojom.LocalFrameId local_frame_id,
                         cc.mojom.CompositorFrame frame);
 
+  EvictFrame();

[Fady Samuel, 2016/12/01 20:38:46]

Add a comment explaining what this does.

[Alex Z., 2016/12/06 20:10:40]

This is done is the separate CL.

+
   // TODO(fsamuel): ReadbackBitmap API would be useful here.
 };
 
@@ -49,6 +51,8 @@ interface MojoCompositorFrameSinkClient {
 
   // Returns resources sent to SubmitCompositorFrame to be reused or freed.
   ReclaimResources(ReturnedResourceArray resources);
+
+  WillDrawSurface();

[Fady Samuel, 2016/12/01 20:38:46]

Add a comment explaining when this is called.

[Alex Z., 2016/12/06 20:10:41]

This is done is the separate CL.

 };
 
 // MojoCompositorFrameSinkPrivate is used by the display compositor host to set