Fix LibjingleTransportFactory to refresh STUN/Relay.

remoting/protocol/transport_config.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 REMOTING_PROTOCOL_TRANSPORT_CONFIG_H_
-#define REMOTING_PROTOCOL_TRANSPORT_CONFIG_H_
-
-#include <string>
-
-namespace remoting {
-namespace protocol {
-
-struct TransportConfig {
-  TransportConfig();
-  ~TransportConfig();
-
-  std::string stun_server;
-  std::string relay_server;
-  std::string relay_token;
-};
-
-}  // namespace protocol
-}  // namespace remoting
-
-#endif  // REMOTING_PROTOCOL_TRANSPORT_CONFIG_H_