Implemented shared memory as an NPObject.

o3d/gpu_plugin/command_buffer.h

 // Copyright (c) 2006-2008 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 O3D_GPU_PLUGIN_COMMAND_BUFFER_H_
 #define O3D_GPU_PLUGIN_COMMAND_BUFFER_H_
 
 #include "o3d/gpu_plugin/np_utils/default_np_object.h"
 #include "o3d/gpu_plugin/np_utils/np_dispatcher.h"
+#include "o3d/gpu_plugin/system_services/shared_memory_public.h"
 
 namespace o3d {
 namespace gpu_plugin {
 
 // An NPObject that implements a shared memory command buffer and a synchronous
 // API to manage the put and get pointers.
 class CommandBuffer : public DefaultNPObject<NPObject> {
  public:
   explicit CommandBuffer(NPP npp);
   virtual ~CommandBuffer();
 
   // Create a shared memory buffer of the given size.
   virtual bool Initialize(int32 size);
 
   // Gets the shared memory object for the command buffer.
-  virtual NPObjectPointer<NPObject> GetBuffer();
+  virtual NPObjectPointer<NPObject> GetSharedMemory();
 
   // The client calls this to update its put offset.
   virtual void SetPutOffset(int32 offset);
 
   // The client calls this to get the servers current get offset.
   virtual int32 GetGetOffset();
 
   NP_UTILS_BEGIN_DISPATCHER_CHAIN(CommandBuffer, DefaultNPObject<NPObject>)
     NP_UTILS_DISPATCHER(Initialize, bool(int32))
     NP_UTILS_DISPATCHER(SetPutOffset, void(int32))
     NP_UTILS_DISPATCHER(GetGetOffset, int32())
-    NP_UTILS_DISPATCHER(GetBuffer, NPObjectPointer<NPObject>())
+    NP_UTILS_DISPATCHER(GetSharedMemory, NPObjectPointer<NPObject>())
   NP_UTILS_END_DISPATCHER_CHAIN
 
  private:
   NPP npp_;
-  NPObjectPointer<NPObject> buffer_object_;
-  NPSharedMemory* shared_memory_;
+  NPObjectPointer<CHRSharedMemory> shared_memory_;
 };
 
 }  // namespace gpu_plugin
 }  // namespace o3d
 
 #endif  // O3D_GPU_PLUGIN_COMMAND_BUFFER_H_