Use continual gathering to restore backup connections

webrtc/p2p/base/port.h

 /*
  *  Copyright 2004 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.
  */
 
@@ skipping 124 matching lines @@
        const rtc::IPAddress& ip,
        uint16_t min_port,
        uint16_t max_port,
        const std::string& username_fragment,
        const std::string& password);
   virtual ~Port();
 
   virtual const std::string& Type() const { return type_; }
   virtual rtc::Network* Network() const { return network_; }
 
+  virtual void FailAndDestroyConnections();
+
   // Methods to set/get ICE role and tiebreaker values.
   IceRole GetIceRole() const { return ice_role_; }
   void SetIceRole(IceRole role) { ice_role_ = role; }
 
   void SetIceTiebreaker(uint64_t tiebreaker) { tiebreaker_ = tiebreaker; }
   uint64_t IceTiebreaker() const { return tiebreaker_; }
 
   virtual bool SharedSocket() const { return shared_socket_; }
   void ResetSharedSocket() { shared_socket_ = false; }
 
@@ skipping 510 matching lines @@
            const rtc::PacketOptions& options) override;
   int GetError() override { return error_; }
 
  private:
   int error_ = 0;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_PORT_H_