android_webview: changes to support Android GraphicBuffers

android_webview/browser/graphic_buffer_impl.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 ANDROID_WEBVIEW_BROWSER_GRAPHIC_BUFFER_IMPL_H_
+#define ANDROID_WEBVIEW_BROWSER_GRAPHIC_BUFFER_IMPL_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "cc/resources/graphic_buffer.h"
+#include "ui/gfx/size.h"
+
+struct AwDrawGLFunctionTable;
+
+namespace android_webview {
+
+class GraphicBufferImpl : public cc::GraphicBuffer {
+ public:
+  static void SetAwDrawGLFunctionTable(AwDrawGLFunctionTable* table);
+  GraphicBufferImpl(const gfx::Size& size);
+  virtual ~GraphicBufferImpl();
+
+  // methods from GraphicBuffer
+  virtual bool LockForRead(void** vaddr) OVERRIDE;
+  virtual bool LockForWrite(void** vaddr) OVERRIDE;
+  virtual bool Unlock() OVERRIDE;
+  virtual gfx::Size GetSize() OVERRIDE;
+  virtual void* GetNativeBuffer() OVERRIDE;
+  virtual uint32 GetStride() OVERRIDE;
+
+ private:
+  int buffer_id_;
+  gfx::Size size_;
+
+  DISALLOW_COPY_AND_ASSIGN(GraphicBufferImpl);
+};
+
+}  // namespace android_webview
+
+#endif  // ANDROID_WEBVIEW_BROWSER_GRAPHIC_BUFFER_IMPL_H_