Adding logs to track potential cause of not starting port allocation.

webrtc/p2p/base/transportcontroller.cc

 /*
  *  Copyright 2015 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 456 matching lines @@
   // enough population.
   if (redetermine_role_on_ice_restart_ && transport->local_description() &&
       IceCredentialsChanged(transport->local_description()->ice_ufrag,
                             transport->local_description()->ice_pwd,
                             tdesc.ice_ufrag, tdesc.ice_pwd)) {
     IceRole new_ice_role =
         (action == CA_OFFER) ? ICEROLE_CONTROLLING : ICEROLE_CONTROLLED;
     SetIceRole(new_ice_role);
   }
 
+  LOG(LS_INFO) << "Set local transport description on " << transport_name;
   return transport->SetLocalTransportDescription(tdesc, action, err);
 }
 
 bool TransportController::SetRemoteTransportDescription_n(
     const std::string& transport_name,
     const TransportDescription& tdesc,
     ContentAction action,
     std::string* err) {
   RTC_DCHECK(network_thread_->IsCurrent());
 
   Transport* transport = GetTransport_n(transport_name);
   if (!transport) {
     // If we didn't find a transport, that's not an error;
     // it could have been deleted as a result of bundling.
     // TODO(deadbeef): Make callers smarter so they won't attempt to set a
     // description on a deleted transport.
     return true;
   }
 
+  LOG(LS_INFO) << "Set remote transport description on " << transport_name;
   return transport->SetRemoteTransportDescription(tdesc, action, err);
 }
 
 void TransportController::MaybeStartGathering_n() {
   for (const auto& kv : transports_) {
     kv.second->MaybeStartGathering();
   }
 }
 
 bool TransportController::AddRemoteCandidates_n(
@@ skipping 190 matching lines @@
         RTC_FROM_HERE, this, MSG_ICEGATHERINGSTATE,
         new rtc::TypedMessageData<IceGatheringState>(new_gathering_state));
   }
 }
 
 void TransportController::OnDtlsHandshakeError(rtc::SSLHandshakeError error) {
   SignalDtlsHandshakeError(error);
 }
 
 }  // namespace cricket