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

ppapi/shared_impl/private/ppb_tcp_server_socket_shared.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/shared_impl/private/ppb_tcp_server_socket_shared.h"
 
 #include <cstddef>
 
 #include "base/logging.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 60 matching lines @@
 
 void PPB_TCPServerSocket_Shared::StopListening() {
   if (state_ == CLOSED)
     return;
 
   state_ = CLOSED;
 
   SendStopListening();
   socket_id_ = 0;
 
-  if (listen_callback_.get())
+  if (TrackedCallback::IsPending(listen_callback_))
     listen_callback_->PostAbort();
-  if (accept_callback_.get())
+  if (TrackedCallback::IsPending(accept_callback_))
     accept_callback_->PostAbort();
   tcp_socket_buffer_ = NULL;
 }
 
 void PPB_TCPServerSocket_Shared::OnListenCompleted(uint32 socket_id,
                                                    int32_t status) {
   if (state_ != BEFORE_LISTENING ||
       !TrackedCallback::IsPending(listen_callback_)) {
     NOTREACHED();
     return;
   }
 
   if (status == PP_OK) {
     socket_id_ = socket_id;
     state_ = LISTENING;
   }
 
-  TrackedCallback::ClearAndRun(&listen_callback_, status);
+  listen_callback_->Run(status);
 }
 
 }  // namespace ppapi