cc: Move GpuMemoryBufferManager interface to gpu namespace.

cc/resources/gpu_memory_buffer_manager.h

-// Copyright 2014 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_RESOURCES_GPU_MEMORY_BUFFER_MANAGER_H_
-#define CC_RESOURCES_GPU_MEMORY_BUFFER_MANAGER_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "cc/base/cc_export.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gfx/gpu_memory_buffer.h"
-
-namespace cc {
-
-class CC_EXPORT GpuMemoryBufferManager {
- public:
-  // Allocates a GpuMemoryBuffer that can be shared with another process.
-  virtual scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
-      const gfx::Size& size,
-      gfx::GpuMemoryBuffer::Format format,
-      gfx::GpuMemoryBuffer::Usage usage) = 0;
-
-  // Returns a GpuMemoryBuffer instance given a ClientBuffer. Returns NULL on
-  // failure.
-  virtual gfx::GpuMemoryBuffer* GpuMemoryBufferFromClientBuffer(
-      ClientBuffer buffer) = 0;
-
- protected:
-  virtual ~GpuMemoryBufferManager() {}
-};
-
-}  // namespace cc
-
-#endif  // CC_RESOURCES_GPU_MEMORY_BUFFER_MANAGER_H_