Add a Preference to allow WebRTC only bind to "any address" (all 0s)

content/renderer/p2p/port_allocator.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/p2p/port_allocator.h"
 
 namespace content {
 
 P2PPortAllocator::Config::Config()
     : disable_tcp_transport(false) {
@@ skipping 13 matching lines @@
     P2PSocketDispatcher* socket_dispatcher,
     rtc::NetworkManager* network_manager,
     rtc::PacketSocketFactory* socket_factory,
     const Config& config)
     : cricket::BasicPortAllocator(network_manager, socket_factory),
       socket_dispatcher_(socket_dispatcher),
       config_(config) {
   uint32 flags = 0;
   if (config_.disable_tcp_transport)
     flags |= cricket::PORTALLOCATOR_DISABLE_TCP;
+  if (!config_.enable_multiple_routes)
+    flags |= cricket::PORTALLOCATOR_DISABLE_ADAPTER_ENUMERATION;
   set_flags(flags);
   set_allow_tcp_listen(false);
 }
 
 P2PPortAllocator::~P2PPortAllocator() {
 }
 
 cricket::PortAllocatorSession* P2PPortAllocator::CreateSessionInternal(
     const std::string& content_name,
     int component,
@@ skipping 45 matching lines @@
                                  config.relays[i].port),
         protocol,
         config.relays[i].secure));
     relay_server.credentials = credentials;
     port_config->AddRelay(relay_server);
   }
   ConfigReady(port_config);
 }
 
 }  // namespace content