Adding IceConfig option to assume TURN/TURN candidate pairs will work.

webrtc/p2p/base/stunport.cc

Index: webrtc/p2p/base/stunport.cc
diff --git a/webrtc/p2p/base/stunport.cc b/webrtc/p2p/base/stunport.cc
index e56d454b80139f22dd9fb2672e101d90c3cfb10b..c1b902e5fe076e1e06d30567c90f59137297a60b 100644
--- a/webrtc/p2p/base/stunport.cc
+++ b/webrtc/p2p/base/stunport.cc
@@ -253,7 +253,8 @@ void UDPPort::MaybePrepareStunCandidate() {
 }
 
 Connection* UDPPort::CreateConnection(const Candidate& address,
-                                      CandidateOrigin origin) {
+                                      CandidateOrigin origin,
+                                      const IceConfig& config) {
   if (!SupportsProtocol(address.protocol())) {
     return NULL;
   }
@@ -267,7 +268,7 @@ Connection* UDPPort::CreateConnection(const Candidate& address,
     return NULL;
   }
 
-  Connection* conn = new ProxyConnection(this, 0, address);
+  Connection* conn = new ProxyConnection(this, 0, address, config);
   AddOrReplaceConnection(conn);
   return conn;
 }