cc: Move copy requests from layers to the effect tree

cc/layers/render_surface_impl.h

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_LAYERS_RENDER_SURFACE_IMPL_H_
 #define CC_LAYERS_RENDER_SURFACE_IMPL_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 124 matching lines @@
     occlusion_in_content_space_ = occlusion;
   }
 
   LayerImplList& layer_list() { return layer_list_; }
   void ClearLayerLists();
 
   int OwningLayerId() const;
   bool HasReplica() const;
   const LayerImpl* ReplicaLayer() const;
 
+  bool HasCopyRequest() const;
+
   void ResetPropertyChangedFlag() { surface_property_changed_ = false; }
   bool SurfacePropertyChanged() const;
   bool SurfacePropertyChangedOnlyFromDescendant() const;
 
   DamageTracker* damage_tracker() const { return damage_tracker_.get(); }
 
   RenderPassId GetRenderPassId();
 
   void AppendRenderPasses(RenderPassSink* pass_sink);
   void AppendQuads(RenderPass* render_pass,
@@ skipping 65 matching lines @@
   int target_render_surface_layer_index_history_;
   size_t current_layer_index_history_;
 
   friend class LayerIterator;
 
   DISALLOW_COPY_AND_ASSIGN(RenderSurfaceImpl);
 };
 
 }  // namespace cc
 #endif  // CC_LAYERS_RENDER_SURFACE_IMPL_H_