| /* | 
 |  *  Copyright 2015 The WebRTC Project Authors. All rights reserved. | 
 |  * | 
 |  *  Use of this source code is governed by a BSD-style license | 
 |  *  that can be found in the LICENSE file in the root of the source | 
 |  *  tree. An additional intellectual property rights grant can be found | 
 |  *  in the file PATENTS.  All contributing project authors may | 
 |  *  be found in the AUTHORS file in the root of the source tree. | 
 |  */ | 
 |  | 
 | #include "rtc_base/network_monitor.h" | 
 |  | 
 | #include "rtc_base/checks.h" | 
 |  | 
 | namespace webrtc { | 
 |  | 
 | const char* NetworkPreferenceToString(NetworkPreference preference) { | 
 |   switch (preference) { | 
 |     case NetworkPreference::NEUTRAL: | 
 |       return "NEUTRAL"; | 
 |     case NetworkPreference::NOT_PREFERRED: | 
 |       return "NOT_PREFERRED"; | 
 |   } | 
 |   RTC_CHECK_NOTREACHED(); | 
 | } | 
 |  | 
 | NetworkMonitorInterface::NetworkMonitorInterface() {} | 
 | NetworkMonitorInterface::~NetworkMonitorInterface() {} | 
 |  | 
 | }  // namespace webrtc |