Move PortAllocator creation out of LibjingleTransportFactory.

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();
 
-  enum NatTraversalMode {
-    // Don't use STUN or relay servers. Accept incoming P2P connection
-    // attempts, but don't initiate any. This ensures that the peer is
-    // on the same network. Note that connection will always fail if
-    // both ends use this mode.
-    NAT_TRAVERSAL_DISABLED,
-
-    // Don't use STUN or relay servers but make outgoing connections.
-    NAT_TRAVERSAL_OUTGOING,
-
-    // Active NAT traversal using STUN and relay servers.
-    NAT_TRAVERSAL_ENABLED,
-  };
-
-  NatTraversalMode nat_traversal_mode;
   std::string stun_server;
   std::string relay_server;
   std::string relay_token;
-
-  // |min_port| and |max_port| specify range (inclusive) of ports used by
-  // P2P sessions. Any port can be used when both values are set to 0.
-  int min_port;
-  int max_port;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_TRANSPORT_CONFIG_H_