Convert ppapi/shared to use TrackedCallback.

ppapi/proxy/ppb_graphics_3d_proxy.h

 // Copyright (c) 2011 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 PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_
 #define PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_
 
 #include <vector>
 
 #include "base/shared_memory.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "ppapi/c/pp_graphics_3d.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/proxy_non_thread_safe_ref_count.h"
 #include "ppapi/shared_impl/ppb_graphics_3d_shared.h"
 #include "ppapi/shared_impl/resource.h"
 
 namespace ppapi {
 
 class HostResource;
 
 namespace proxy {
 
-class Graphics3D : public Resource, public PPB_Graphics3D_Shared {
+class Graphics3D : public PPB_Graphics3D_Shared {
  public:
   explicit Graphics3D(const HostResource& resource);
   virtual ~Graphics3D();
 
   bool Init();
 
-  // Resource overrides.
-  virtual thunk::PPB_Graphics3D_API* AsPPB_Graphics3D_API() OVERRIDE {
-    return this;
-  }
-
   // Graphics3DTrusted API. These are not implemented in the proxy.
   virtual PP_Bool InitCommandBuffer() OVERRIDE;
   virtual PP_Bool SetGetBuffer(int32_t shm_id) OVERRIDE;
   virtual PP_Graphics3DTrustedState GetState() OVERRIDE;
   virtual PP_Bool Flush(int32_t put_offset) OVERRIDE;
   virtual PP_Graphics3DTrustedState FlushSync(int32_t put_offset) OVERRIDE;
   virtual int32_t CreateTransferBuffer(uint32_t size) OVERRIDE;
   virtual PP_Bool DestroyTransferBuffer(int32_t id) OVERRIDE;
   virtual PP_Bool GetTransferBuffer(int32_t id,
                                     int* shm_handle,
@@ skipping 63 matching lines @@
                                 ProxyNonThreadSafeRefCount> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_