Making candidate pool size behave as decided in JSEP.

webrtc/p2p/client/basicportallocator.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 151 matching lines @@
       return;
     }
   }
 
   metrics_observer()->IncrementEnumCounter(
       webrtc::kEnumCounterIceRegathering, static_cast<int>(reason),
       static_cast<int>(IceRegatheringReason::MAX_VALUE));
 }
 
 BasicPortAllocator::~BasicPortAllocator() {
+  // Our created port allocator sessions depend on us, so destroy our remaining
+  // pooled sessions before anything else.
+  DiscardCandidatePool();
 }
 
 PortAllocatorSession* BasicPortAllocator::CreateSessionInternal(
     const std::string& content_name, int component,
     const std::string& ice_ufrag, const std::string& ice_pwd) {
   PortAllocatorSession* session = new BasicPortAllocatorSession(
       this, content_name, component, ice_ufrag, ice_pwd);
   session->SignalIceRegathering.connect(this,
                                         &BasicPortAllocator::OnIceRegathering);
   return session;
@@ skipping 1333 matching lines @@
   ServerAddresses servers;
   for (size_t i = 0; i < relays.size(); ++i) {
     if (relays[i].type == turn_type && SupportsProtocol(relays[i], type)) {
       servers.insert(relays[i].ports.front().address);
     }
   }
   return servers;
 }
 
 }  // namespace cricket