gpu: Compositor management of GpuMemoryBuffer instances.

gpu/command_buffer/client/gpu_memory_buffer_tracker.h

-// Copyright (c) 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 GPU_COMMAND_BUFFER_CLIENT_GPU_MEMORY_BUFFER_TRACKER_H_
-#define GPU_COMMAND_BUFFER_CLIENT_GPU_MEMORY_BUFFER_TRACKER_H_
-
-#include "base/basictypes.h"
-#include "base/containers/hash_tables.h"
-#include "gles2_impl_export.h"
-
-namespace gfx {
-class GpuMemoryBuffer;
-}
-
-namespace gpu {
-class GpuControl;
-
-namespace gles2 {
-
-// Tracks GPU memory buffer objects on the client side.
-class GLES2_IMPL_EXPORT GpuMemoryBufferTracker {
- public:
-  explicit GpuMemoryBufferTracker(GpuControl* gpu_control);
-  virtual ~GpuMemoryBufferTracker();
-
-  int32 CreateBuffer(size_t width,
-                     size_t height,
-                     int32 internalformat,
-                     int32 usage);
-  gfx::GpuMemoryBuffer* GetBuffer(int32 image_id);
-  void RemoveBuffer(int32 image_id);
-
- private:
-  typedef base::hash_map<int32, gfx::GpuMemoryBuffer*> BufferMap;
-  BufferMap buffers_;
-  GpuControl* gpu_control_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferTracker);
-};
-
-}  // namespace gles2
-}  // namespace gpu
-
-#endif  // GPU_COMMAND_BUFFER_CLIENT_GPU_MEMORY_BUFFER_TRACKER_H_