Prepare for ICE-renomination

webrtc/p2p/base/p2ptransportchannel.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 385 matching lines @@
   uint64_t tiebreaker_;
   IceGatheringState gathering_state_;
 
   int check_receiving_interval_;
   int64_t last_ping_sent_ms_ = 0;
   int weak_ping_interval_ = WEAK_PING_INTERVAL;
   TransportChannelState state_ = TransportChannelState::STATE_INIT;
   IceConfig config_;
   int last_sent_packet_id_ = -1;  // -1 indicates no packet was sent before.
   bool started_pinging_ = false;
+  bool peer_supports_renomination_ = false;

[Taylor Brandstetter, 2016/07/22 17:36:00]

Where is this variable set?

[honghaiz3, 2016/07/22 22:50:11]

That will be in a subsequent CL and from signaling negotiation. 

+  int nomination_value_ = 0;

[Taylor Brandstetter, 2016/07/22 17:36:00]

Could add a comment explaining that this is the value put in the "nomination"
attribute for the next nominated pair when using renomination. Also, based on
the terminology you're using (where "nominating" = something we nominate,
"nominated" = something the peer nominates), should this be called
"nominating_value_"?

[honghaiz3, 2016/07/22 22:50:11]

Done.

+  // Used in the controlling side to remember the last connection we have
+  // nominated.
+  Connection* last_nominating_connection_ = nullptr;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(P2PTransportChannel);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_P2PTRANSPORTCHANNEL_H_