Add way to mark other Surface a predecessor for a Surface.

cc/surfaces/surface.h

Index: cc/surfaces/surface.h
diff --git a/cc/surfaces/surface.h b/cc/surfaces/surface.h
index 957d9f8c0b5adbe7c6d0f6439b9785084604ff45..e6aeb84f7f5659f0b466e2fcc0f1626428c19aa0 100644
--- a/cc/surfaces/surface.h
+++ b/cc/surfaces/surface.h
@@ -44,6 +44,11 @@ class CC_SURFACES_EXPORT Surface {
   ~Surface();
 
   SurfaceId surface_id() const { return surface_id_; }
+  SurfaceId previous_frame_surface_id() const {
+    return previous_frame_surface_id_;
+  }
+
+  void SetPreviousFrameSurface(Surface* surface);
 
   void QueueFrame(std::unique_ptr<CompositorFrame> frame,
                   const DrawCallback& draw_callback);
@@ -88,6 +93,7 @@ class CC_SURFACES_EXPORT Surface {
   void ClearCopyRequests();
 
   SurfaceId surface_id_;
+  SurfaceId previous_frame_surface_id_;
   base::WeakPtr<SurfaceFactory> factory_;
   // TODO(jamesr): Support multiple frames in flight.
   std::unique_ptr<CompositorFrame> current_frame_;