Add support for threadsafe completion callback factory.

ppapi/proxy/ppb_audio_proxy.h

 // Copyright (c) 2012 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_AUDIO_PROXY_H_
 #define PPAPI_PROXY_PPB_AUDIO_PROXY_H_
 
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/shared_memory.h"
 #include "base/sync_socket.h"
 #include "ipc/ipc_platform_file.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/c/ppb_audio_config.h"
 #include "ppapi/proxy/interface_proxy.h"
-#include "ppapi/proxy/proxy_non_thread_safe_ref_count.h"
+#include "ppapi/proxy/proxy_completion_callback_factory.h"
 #include "ppapi/utility/completion_callback_factory.h"
 
 namespace ppapi {
 
 class HostResource;
 
 namespace proxy {
 
 class PPB_Audio_Proxy : public InterfaceProxy {
  public:
@@ skipping 37 matching lines @@
   // The input arguments should be initialized to 0 or -1, depending on the
   // platform's default invalid handle values. On error, some of these
   // arguments may be written to, and others may be untouched, depending on
   // where the error occurred.
   int32_t GetAudioConnectedHandles(
       const ppapi::HostResource& resource,
       IPC::PlatformFileForTransit* foreign_socket_handle,
       base::SharedMemoryHandle* foreign_shared_memory_handle,
       uint32_t* shared_memory_length);
 
-  pp::CompletionCallbackFactory<PPB_Audio_Proxy,
-                                ProxyNonThreadSafeRefCount> callback_factory_;
+  ProxyCompletionCallbackFactory<PPB_Audio_Proxy> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_AUDIO_PROXY_H_