Increase the stun ping interval.

webrtc/p2p/base/port.cc

 /*
  *  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 57 matching lines @@
 // Computes our estimate of the RTT given the current estimate.
 inline int ConservativeRTTEstimate(int rtt) {
   return std::max(MINIMUM_RTT, std::min(MAXIMUM_RTT, 2 * rtt));
 }
 
 // Weighting of the old rtt value to new data.
 const int RTT_RATIO = 3;  // 3 : 1
 
 // The delay before we begin checking if this port is useless.
 const int kPortTimeoutDelay = 30 * 1000;  // 30 seconds
+

[honghaiz3, 2016/06/02 00:03:57]

please remove this change.

 }  // namespace
 
 namespace cricket {
 
 // TODO(ronghuawu): Use "host", "srflx", "prflx" and "relay". But this requires
 // the signaling part be updated correspondingly as well.
 const char LOCAL_PORT_TYPE[] = "local";
 const char STUN_PORT_TYPE[] = "stun";
 const char PRFLX_PORT_TYPE[] = "prflx";
 const char RELAY_PORT_TYPE[] = "relay";
@@ skipping 1417 matching lines @@
     ASSERT(sent < 0);
     error_ = port_->GetError();
     sent_packets_discarded_++;
   } else {
     send_rate_tracker_.AddSamples(sent);
   }
   return sent;
 }
 
 }  // namespace cricket