cc: Unused resources should be given back to the child compositor

cc/delegated_renderer_layer_impl.h

 // Copyright 2012 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_DELEGATED_RENDERER_LAYER_IMPL_H_
 #define CC_DELEGATED_RENDERER_LAYER_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/cc_export.h"
 #include "cc/layer_impl.h"
@@ skipping 33 matching lines @@
 
   void SetDisplaySize(gfx::Size size);
 
  protected:
   DelegatedRendererLayerImpl(LayerTreeImpl* tree_impl, int id);
 
   int ChildIdForTesting() const { return child_id_; }
   const ScopedPtrVector<RenderPass>& RenderPassesInDrawOrderForTesting() const {
     return render_passes_in_draw_order_;
   }
-  const ResourceProvider::ResourceIdSet& ResourcesForTesting() const {
-    return resources_;
-  }
 
  private:
   // Creates an ID with the resource provider for the child renderer
   // that will be sending quads to the layer.
   void CreateChildIdIfNeeded();
   void ClearChildId();
 
   RenderPass::Id ConvertDelegatedRenderPassId(
       RenderPass::Id delegated_render_pass_id) const;
 
   gfx::Transform DelegatedFrameToLayerSpaceTransform(gfx::Size frame_size)
       const;
 
   void AppendRenderPassQuads(
       QuadSink* quad_sink,
       AppendQuadsData* append_quads_data,
       const RenderPass* delegated_render_pass,
       gfx::Size frame_size) const;
 
   // LayerImpl overrides.
   virtual const char* layerTypeAsString() const OVERRIDE;
 
   ScopedPtrVector<RenderPass> render_passes_in_draw_order_;
   base::hash_map<RenderPass::Id, int> render_passes_index_by_id_;
-  ResourceProvider::ResourceIdSet resources_;
 
   gfx::Size display_size_;
   int child_id_;
 };
 
 }
 
 #endif  // CC_DELEGATED_RENDERER_LAYER_IMPL_H_