Getting rid of DelegatedFrameData

cc/surfaces/surface_factory.h

Index: cc/surfaces/surface_factory.h
diff --git a/cc/surfaces/surface_factory.h b/cc/surfaces/surface_factory.h
index 3a6431596bc9cc470e8ef4fdbae1520988543e14..c24ab9b5cf7f14d5881f374744fcfec016ea1f7e 100644
--- a/cc/surfaces/surface_factory.h
+++ b/cc/surfaces/surface_factory.h
@@ -71,6 +71,10 @@ class CC_SURFACES_EXPORT SurfaceFactory {
   void RequestCopyOfSurface(const LocalFrameId& local_frame_id,
                             std::unique_ptr<CopyOutputRequest> copy_request);
 
+  // Evicts the current frame on the surface, forcing all the resources
+  // to be released.
+  void ClearSurface(const LocalFrameId& local_frame_id);
+
   void WillDrawSurface(const LocalFrameId& id, const gfx::Rect& damage_rect);
 
   SurfaceFactoryClient* client() { return client_; }