Bind a socket to a network if the network handle is set.

webrtc/p2p/base/basicpacketsocketfactory.h

 /*
  *  Copyright 2011 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_P2P_BASE_BASICPACKETSOCKETFACTORY_H_
 #define WEBRTC_P2P_BASE_BASICPACKETSOCKETFACTORY_H_
 
 #include "webrtc/p2p/base/packetsocketfactory.h"
 
 namespace rtc {
 
 class AsyncSocket;
+class Network;
 class SocketFactory;
 class Thread;
 
 class BasicPacketSocketFactory : public PacketSocketFactory {
  public:
   BasicPacketSocketFactory();
   explicit BasicPacketSocketFactory(Thread* thread);
   explicit BasicPacketSocketFactory(SocketFactory* socket_factory);
   ~BasicPacketSocketFactory() override;
 
   AsyncPacketSocket* CreateUdpSocket(const SocketAddress& local_address,
                                      uint16_t min_port,
                                      uint16_t max_port) override;
+  AsyncPacketSocket* CreateUdpSocketOnNetwork(
+      const SocketAddress& local_address,
+      uint16_t min_port,
+      uint16_t max_port,
+      const Network* network) override;
   AsyncPacketSocket* CreateServerTcpSocket(const SocketAddress& local_address,
                                            uint16_t min_port,
                                            uint16_t max_port,
                                            int opts) override;
   AsyncPacketSocket* CreateClientTcpSocket(const SocketAddress& local_address,
                                            const SocketAddress& remote_address,
                                            const ProxyInfo& proxy_info,
                                            const std::string& user_agent,
                                            int opts) override;
 
   AsyncResolverInterface* CreateAsyncResolver() override;
 
  private:
   int BindSocket(AsyncSocket* socket,
                  const SocketAddress& local_address,
                  uint16_t min_port,
                  uint16_t max_port);
 
   SocketFactory* socket_factory();
 
   Thread* thread_;
   SocketFactory* socket_factory_;
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_P2P_BASE_BASICPACKETSOCKETFACTORY_H_