First step in providing a UdpTransportChannel.

webrtc/base/virtualsocketserver.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 1149 matching lines @@
   if (local_ip.family() == AF_INET && !remote_v6_only && IPIsAny(remote_ip)) {
     return true;
   }
   // Same check, backwards.
   int local_v6_only = 0;
   local->GetOption(Socket::OPT_IPV6_V6ONLY, &local_v6_only);
   if (remote_ip.family() == AF_INET && !local_v6_only && IPIsAny(local_ip)) {
     return true;
   }
 
+  if (local->was_any()) {
+    return true;
+  }
+  if (remote->was_any()) {
+    return true;
+  }

[Taylor Brandstetter, 2016/11/04 17:51:07]

I don't think this is necessary, is it?

   // Check to see if either socket was explicitly bound to IPv6-any.
   // These sockets can talk with anyone.
   if (local_ip.family() == AF_INET6 && local->was_any()) {
     return true;
   }
   if (remote_ip.family() == AF_INET6 && remote->was_any()) {
     return true;
   }
 
   return false;
@@ skipping 11 matching lines @@
 void VirtualSocketServer::SetDefaultRoute(const IPAddress& from_addr) {
   RTC_DCHECK(!IPIsAny(from_addr));
   if (from_addr.family() == AF_INET) {
     default_route_v4_ = from_addr;
   } else if (from_addr.family() == AF_INET6) {
     default_route_v6_ = from_addr;
   }
 }
 
 }  // namespace rtc