gpu: Refactor GpuMemoryBuffer framework for multi-process support.

android_webview/browser/gpu_memory_buffer_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 ANDROID_WEBVIEW_BROWSER_GPU_MEMORY_BUFFER_IMPL_H_
-#define ANDROID_WEBVIEW_BROWSER_GPU_MEMORY_BUFFER_IMPL_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "gpu/command_buffer/client/gpu_memory_buffer.h"
-#include "ui/gfx/size.h"
-
-struct AwDrawGLFunctionTable;
-
-namespace android_webview {
-
-class GpuMemoryBufferImpl : public gpu::GpuMemoryBuffer {
- public:
-  static scoped_ptr<gpu::GpuMemoryBuffer> CreateGpuMemoryBuffer(int width,
-                                                                int height);
-  static void SetAwDrawGLFunctionTable(AwDrawGLFunctionTable* table);
-  GpuMemoryBufferImpl(gfx::Size size);
-  virtual ~GpuMemoryBufferImpl();
-
-  // methods from GpuMemoryBuffer
-  virtual void Map(gpu::GpuMemoryBuffer::AccessMode mode,
-      void** vaddr) OVERRIDE;
-  virtual void Unmap() OVERRIDE;
-  virtual bool IsMapped() OVERRIDE;
-  virtual void* GetNativeBuffer() OVERRIDE;
-  virtual uint32 GetStride() OVERRIDE;
-
- private:
-  // Returns true iff the buffer was allocated successfully.
-  bool InitCheck();
-
-  int buffer_id_;
-  gfx::Size size_;
-  bool mapped_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl);
-};
-
-}  // namespace android_webview
-
-#endif  // ANDROID_WEBVIEW_BROWSER_GPU_MEMORY_BUFFER_IMPL_H_