Enable TURN on the host when using WebRTC.

remoting/protocol/webrtc_transport.cc

 // Copyright 2015 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 "remoting/protocol/webrtc_transport.h"
 
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/macros.h"
@@ skipping 101 matching lines @@
     EventHandler* event_handler)
     : worker_thread_(worker_thread),
       transport_context_(transport_context),
       event_handler_(event_handler),
       outgoing_data_stream_adapter_(
           true,
           base::Bind(&WebrtcTransport::Close, base::Unretained(this))),
       incoming_data_stream_adapter_(
           false,
           base::Bind(&WebrtcTransport::Close, base::Unretained(this))),
-      weak_factory_(this) {}
+      weak_factory_(this) {
+  transport_context_->set_relay_mode(TransportContext::RelayMode::TURN);
+}
 
 WebrtcTransport::~WebrtcTransport() {}
 
 void WebrtcTransport::Start(
     Authenticator* authenticator,
     SendTransportInfoCallback send_transport_info_callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(send_transport_info_callback_.is_null());
 
   jingle_glue::JingleThreadWrapper::EnsureForCurrentMessageLoop();
@@ skipping 356 matching lines @@
   peer_connection_->Close();
   peer_connection_ = nullptr;
   peer_connection_factory_ = nullptr;
 
   if (error != OK)
     event_handler_->OnWebrtcTransportError(error);
 }
 
 }  // namespace protocol
 }  // namespace remoting