Cleanup: Removing unused code in DelegatedRendererLayer

cc/layers/delegated_renderer_layer.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_LAYERS_DELEGATED_RENDERER_LAYER_H_
 #define CC_LAYERS_DELEGATED_RENDERER_LAYER_H_
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/lock.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/layer.h"
 #include "cc/resources/returned_resource.h"
 
 namespace cc {
-class BlockingTaskRunner;
 
 class CC_EXPORT DelegatedRendererLayer : public Layer {
  public:
   static scoped_refptr<DelegatedRendererLayer> Create(
       const scoped_refptr<DelegatedFrameProvider>& frame_provider);
 
   virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
       OVERRIDE;
   virtual void SetLayerTreeHost(LayerTreeHost* host) OVERRIDE;
   virtual bool Update(ResourceUpdateQueue* queue,
@@ skipping 19 matching lines @@
   gfx::RectF frame_damage_;
 
   base::WeakPtrFactory<DelegatedRendererLayer> weak_ptrs_;
 
   DISALLOW_COPY_AND_ASSIGN(DelegatedRendererLayer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_DELEGATED_RENDERER_LAYER_H_