Add DOMAIN_MISMATCH message end to end

remoting/protocol/errors.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/errors.h"
 
 #include "base/logging.h"
 
 namespace remoting {
 namespace protocol {
 
 #define RETURN_STRING_LITERAL(x) \
 case x: \
 return #x;
 
 const char* ErrorCodeToString(ErrorCode error) {
   switch (error) {
     RETURN_STRING_LITERAL(OK);
     RETURN_STRING_LITERAL(PEER_IS_OFFLINE);
     RETURN_STRING_LITERAL(SESSION_REJECTED);
     RETURN_STRING_LITERAL(INCOMPATIBLE_PROTOCOL);
     RETURN_STRING_LITERAL(AUTHENTICATION_FAILED);
+    RETURN_STRING_LITERAL(DOMAIN_MISMATCH);
     RETURN_STRING_LITERAL(CHANNEL_CONNECTION_ERROR);
     RETURN_STRING_LITERAL(SIGNALING_ERROR);
     RETURN_STRING_LITERAL(SIGNALING_TIMEOUT);
     RETURN_STRING_LITERAL(HOST_OVERLOAD);
     RETURN_STRING_LITERAL(MAX_SESSION_LENGTH);
     RETURN_STRING_LITERAL(HOST_CONFIGURATION_ERROR);
     RETURN_STRING_LITERAL(UNKNOWN_ERROR);
   }
   NOTREACHED();
   return nullptr;
 }
 
 }  // namespace protocol
 }  // namespace remoting