Remove parts of //cc we aren't using

cc/layers/texture_layer_client.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_TEXTURE_LAYER_CLIENT_H_
-#define CC_LAYERS_TEXTURE_LAYER_CLIENT_H_
-
-#include "cc/resources/single_release_callback.h"
-
-namespace cc {
-class ResourceUpdateQueue;
-class TextureMailbox;
-
-class TextureLayerClient {
- public:
-  // Returns true and provides a mailbox if a new frame is available.
-  // Returns false if no new data is available
-  // and the old mailbox is to be reused.
-  virtual bool PrepareTextureMailbox(
-      TextureMailbox* mailbox,
-      scoped_ptr<SingleReleaseCallback>* release_callback,
-      bool use_shared_memory) = 0;
-
- protected:
-  virtual ~TextureLayerClient() {}
-};
-
-}  // namespace cc
-
-#endif  // CC_LAYERS_TEXTURE_LAYER_CLIENT_H_