| // Copyright 2020 The Chromium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #include "net/quic/web_transport_error.h" | 
 |  | 
 | #include "base/strings/strcat.h" | 
 |  | 
 | namespace net { | 
 |  | 
 | std::string WebTransportErrorToString(const WebTransportError& error) { | 
 |   std::string message = | 
 |       ExtendedErrorToString(error.net_error, error.quic_error); | 
 |   if (error.details == message) | 
 |     return message; | 
 |   return base::StrCat({message, " (", error.details, ")"}); | 
 | } | 
 |  | 
 | std::ostream& operator<<(std::ostream& os, const WebTransportError& error) { | 
 |   os << WebTransportErrorToString(error); | 
 |   return os; | 
 | } | 
 |  | 
 | }  // namespace net |