gpu: Refactor GpuMemoryBuffer framework for multi-process support.

gpu/command_buffer/service/gpu_memory_buffer_manager.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_SERVICE_GPU_MEMORY_BUFFER_MANAGER_H_
+#define GPU_COMMAND_BUFFER_SERVICE_GPU_MEMORY_BUFFER_MANAGER_H_
+
+#include "base/basictypes.h"
+#include "gpu/gpu_export.h"
+#include "ui/gfx/gpu_memory_buffer.h"
+
+namespace gpu {
+
+class GPU_EXPORT GpuMemoryBufferManagerInterface {
+ public:
+  virtual ~GpuMemoryBufferManagerInterface() {}
+
+  virtual bool RegisterGpuMemoryBuffer(int32 id,
+                                       gfx::GpuMemoryBufferHandle buffer,
+                                       size_t width,
+                                       size_t height,
+                                       unsigned internalformat) = 0;
+  virtual void DestroyGpuMemoryBuffer(int32 id) = 0;
+};
+
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_SERVICE_GPU_MEMORY_BUFFER_MANAGER_H_