Mandoline: Support transforms and clipping of OOPIFs and events

components/mus/surfaces/top_level_display_client.h

Index: components/mus/surfaces/top_level_display_client.h
diff --git a/components/mus/surfaces/top_level_display_client.h b/components/mus/surfaces/top_level_display_client.h
index f8e15ad63e920ad4e1ba9046821b5329c3d9858b..8ff860ca4333c0e4482b1b233cd427f9f3b1dc9d 100644
--- a/components/mus/surfaces/top_level_display_client.h
+++ b/components/mus/surfaces/top_level_display_client.h
@@ -45,6 +45,9 @@ class TopLevelDisplayClient : public cc::DisplayClient,
   void SubmitCompositorFrame(scoped_ptr<cc::CompositorFrame> frame,
                              const base::Closure& callback);
 
+  const cc::CompositorFrame* GetLastCompositorFrame() const;
+
+  const cc::SurfaceId& surface_id() const { return cc_id_; }
  private:
   // DisplayClient implementation.
   // TODO(rjkroege, fsamuel): This won't work correctly with multiple displays.