Added Pepper 3D render context that instantiates the GPU plugin....

chrome/renderer/command_buffer_proxy.h

 // Copyright (c) 2009 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 CHROME_RENDERER_COMMAND_BUFFER_PROXY_H_
 #define CHROME_RENDERER_COMMAND_BUFFER_PROXY_H_
 
 #if defined(ENABLE_GPU)
 
 #include <map>
@@ skipping 15 matching lines @@
  public:
   explicit CommandBufferProxy(
       PluginChannelHost* channel,
       int route_id);
   virtual ~CommandBufferProxy();
 
   // IPC::Message::Sender implementation:
   virtual bool Send(IPC::Message* msg);
 
   // CommandBuffer implementation:
-  virtual base::SharedMemory* Initialize(int32 size);
-  virtual base::SharedMemory* GetRingBuffer();
+  virtual bool Initialize(int32 size);
+  virtual gpu::Buffer GetRingBuffer();
   virtual int32 GetSize();
   virtual int32 SyncOffsets(int32 put_offset);
   virtual int32 GetGetOffset();
   virtual void SetGetOffset(int32 get_offset);
   virtual int32 GetPutOffset();
   virtual void SetPutOffsetChangeCallback(Callback0::Type* callback);
   virtual int32 CreateTransferBuffer(size_t size);
   virtual void DestroyTransferBuffer(int32 id);
-  virtual base::SharedMemory* GetTransferBuffer(int32 handle);
+  virtual gpu::Buffer GetTransferBuffer(int32 handle);
   virtual int32 GetToken();
   virtual void SetToken(int32 token);
   virtual int32 ResetParseError();
   virtual void SetParseError(int32 parse_error);
   virtual bool GetErrorStatus();
   virtual void RaiseErrorStatus();
 
  private:
   // As with the service, the client takes ownership of the ring buffer.
   int32 size_;
   scoped_ptr<base::SharedMemory> ring_buffer_;
 
   // Local cache of id to transfer buffer mapping.
-  typedef std::map<int32, linked_ptr<base::SharedMemory> > TransferBufferMap;
+  typedef std::map<int32, gpu::Buffer> TransferBufferMap;
   TransferBufferMap transfer_buffers_;
 
   scoped_refptr<PluginChannelHost> channel_;
   int route_id_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandBufferProxy);
 };
 
 #endif  // ENABLE_GPU
 
 #endif  // CHROME_RENDERER_COMMAND_BUFFER_PROXY_H_