PPAPI: Get TrackedCallback ready for running on non-main threads.

ppapi/proxy/ppb_tcp_server_socket_private_proxy.cc

 // 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.
 
 #include "ppapi/proxy/ppb_tcp_server_socket_private_proxy.h"
 
 #include <cstddef>
 
 #include "base/logging.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 60 matching lines @@
   if (succeeded) {
     *tcp_socket_buffer_ =
         PPB_TCPSocket_Private_Proxy::CreateProxyResourceForConnectedSocket(
             pp_instance(),
             accepted_socket_id,
             local_addr,
             remote_addr);
   }
   tcp_socket_buffer_ = NULL;
 
-  TrackedCallback::ClearAndRun(&accept_callback_,
-                               succeeded ? PP_OK : PP_ERROR_FAILED);
+  accept_callback_->Run(succeeded ? PP_OK : PP_ERROR_FAILED);
 }
 
 void TCPServerSocket::SendListen(const PP_NetAddress_Private& addr,
                                  int32_t backlog) {
   SendToBrowser(new PpapiHostMsg_PPBTCPServerSocket_Listen(
       API_ID_PPB_TCPSERVERSOCKET_PRIVATE,
       plugin_dispatcher_id_,
       pp_resource(),
       addr,
       backlog));
@@ skipping 98 matching lines @@
                                   local_addr,
                                   remote_addr);
   } else if (accepted_socket_id != 0) {
     PluginGlobals::Get()->plugin_proxy_delegate()->SendToBrowser(
         new PpapiHostMsg_PPBTCPSocket_Disconnect(accepted_socket_id));
   }
 }
 
 }  // namespace proxy
 }  // namespace ppapi