Remove RTCIceTransportPolicy "none".

third_party/WebKit/public/platform/WebRTCConfiguration.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 30 matching lines @@
 namespace blink {
 
 class WebString;
 
 struct WebRTCIceServer {
   WebURL url;
   WebString username;
   WebString credential;
 };
 
-enum class WebRTCIceTransportPolicy { kNone, kRelay, kAll };
+enum class WebRTCIceTransportPolicy { kRelay, kAll };
 
 enum class WebRTCBundlePolicy { kBalanced, kMaxCompat, kMaxBundle };
 
 enum class WebRTCRtcpMuxPolicy { kNegotiate, kRequire };
 
 struct WebRTCConfiguration {
   WebVector<WebRTCIceServer> ice_servers;
   WebRTCIceTransportPolicy ice_transport_policy =
       WebRTCIceTransportPolicy::kAll;
   WebRTCBundlePolicy bundle_policy = WebRTCBundlePolicy::kBalanced;
   WebRTCRtcpMuxPolicy rtcp_mux_policy = WebRTCRtcpMuxPolicy::kRequire;
   WebVector<std::unique_ptr<WebRTCCertificate>> certificates;
   int ice_candidate_pool_size = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebRTCConfiguration_h