Enable TURN on the host when using WebRTC.

remoting/host/chromoting_host.h

Index: remoting/host/chromoting_host.h
diff --git a/remoting/host/chromoting_host.h b/remoting/host/chromoting_host.h
index 78ae1e40fb6d7af14ec330b216e90efe47d14ab6..062a17d952b66975bd6481148042f582158dd0e5 100644
--- a/remoting/host/chromoting_host.h
+++ b/remoting/host/chromoting_host.h
@@ -70,7 +70,8 @@ class ChromotingHost : public base::NonThreadSafe,
   ChromotingHost(
       DesktopEnvironmentFactory* desktop_environment_factory,
       scoped_ptr<protocol::SessionManager> session_manager,
-      scoped_refptr<protocol::TransportContext> transport_context,
+      scoped_refptr<protocol::TransportContext> ice_transport_context,
+      scoped_refptr<protocol::TransportContext> webrtc_transport_context,
       scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> video_encode_task_runner);
   ~ChromotingHost() override;
@@ -154,7 +155,8 @@ class ChromotingHost : public base::NonThreadSafe,
   // Parameters specified when the host was created.
   DesktopEnvironmentFactory* desktop_environment_factory_;
   scoped_ptr<protocol::SessionManager> session_manager_;
-  scoped_refptr<protocol::TransportContext> transport_context_;
+  scoped_refptr<protocol::TransportContext> ice_transport_context_;
+  scoped_refptr<protocol::TransportContext> webrtc_transport_context_;
   scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> video_encode_task_runner_;