cc: Return resources to child compositor via a Callback.

cc/test/fake_delegated_renderer_layer_impl.h

 // Copyright 2013 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_TEST_FAKE_DELEGATED_RENDERER_LAYER_IMPL_H_
 #define CC_TEST_FAKE_DELEGATED_RENDERER_LAYER_IMPL_H_
 
 #include "cc/layers/delegated_renderer_layer_impl.h"
 
 namespace cc {
 
 class FakeDelegatedRendererLayerImpl : public DelegatedRendererLayerImpl {
  public:
   static scoped_ptr<FakeDelegatedRendererLayerImpl> Create(
       LayerTreeImpl* tree_impl, int id) {
     return make_scoped_ptr(new FakeDelegatedRendererLayerImpl(tree_impl, id));
   }
   virtual ~FakeDelegatedRendererLayerImpl();
 
   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
       OVERRIDE;
 
   int ChildId() const { return ChildIdForTesting(); }
   const ScopedPtrVector<RenderPass>& RenderPassesInDrawOrder() const {
     return RenderPassesInDrawOrderForTesting();
   }
-  const ResourceProvider::ResourceIdSet& Resources() const {
-    return ResourcesForTesting();
-  }
+  ResourceProvider::ResourceIdSet Resources() const;
 
   void SetFrameDataForRenderPasses(ScopedPtrVector<RenderPass>* pass_list);
 
  protected:
   FakeDelegatedRendererLayerImpl(LayerTreeImpl* tree_impl, int id);
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_DELEGATED_RENDERER_LAYER_IMPL_H_