GPU client side changes for GpuMemoryBuffers

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 <GLES2/gl2.h>
+
+#include "../common/gles2_cmd_format.h"
+#include "gles2_impl_export.h"
+
+namespace gpu {
+class GpuMemoryBuffer;
+
+namespace gles2 {
+
+// Interface for tracking GpuMemoryBuffers.
+class GLES2_IMPL_EXPORT GpuMemoryBufferTracker {
+ public:
+  virtual ~GpuMemoryBufferTracker() {}
+
+  virtual GLuint CreateBuffer(GLsizei width, GLsizei height) = 0;
+  virtual GpuMemoryBuffer* GetBuffer(GLuint image_id) = 0;
+  virtual void RemoveBuffer(GLuint image_id) = 0;
+};
+
+}  // namespace gles2
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_CLIENT_GPU_MEMORY_BUFFER_TRACKER_H_