android_webview: changes to support Android GraphicBuffers

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 "ui/gfx/size.h"
+#include "ui/gl/gpu_memory_buffer.h"
+
+struct AwDrawGLFunctionTable;
+
+namespace android_webview {
+
+class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
+ public:
+  static void SetAwDrawGLFunctionTable(AwDrawGLFunctionTable* table);
+  GpuMemoryBufferImpl(const gfx::Size& size);
+  virtual ~GpuMemoryBufferImpl();
+
+  // methods from GpuMemoryBuffer
+  virtual void MapForWrite(void** vaddr) OVERRIDE;
+  virtual void Unmap() OVERRIDE;
+  virtual void* GetNativeBuffer() OVERRIDE;
+  virtual uint32 GetStride() OVERRIDE;
+
+ private:
+  int buffer_id_;
+  gfx::Size size_;
+
+  DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl);
+};
+
+}  // namespace android_webview
+
+#endif  // ANDROID_WEBVIEW_BROWSER_GPU_MEMORY_BUFFER_IMPL_H_