Add logging of host lookups made by TurnPort to the RtcEventLog.

webrtc/logging/rtc_event_log/rtc_event_log2stats.cc

 /*
  *  Copyright (c) 2017 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.
  */
 
@@ skipping 142 matching lines @@
     case webrtc::rtclog::Event::AUDIO_RECEIVER_CONFIG_EVENT:
       return "AUDIO_RECV_CONFIG";
     case webrtc::rtclog::Event::AUDIO_SENDER_CONFIG_EVENT:
       return "AUDIO_SEND_CONFIG";
     case webrtc::rtclog::Event::AUDIO_NETWORK_ADAPTATION_EVENT:
       return "AUDIO_NETWORK_ADAPTATION";
     case webrtc::rtclog::Event::BWE_PROBE_CLUSTER_CREATED_EVENT:
       return "BWE_PROBE_CREATED";
     case webrtc::rtclog::Event::BWE_PROBE_RESULT_EVENT:
       return "BWE_PROBE_RESULT";
+    case webrtc::rtclog::Event::HOST_LOOKUP_EVENT:
+      return "HOST_LOOKUP";
   }
   RTC_NOTREACHED();
   return "UNKNOWN_EVENT";
 }
 
 }  // namespace
 
 // This utility will print basic information about each packet to stdout.
 // Note that parser will assert if the protobuf event is missing some required
 // fields and we attempt to access them. We don't handle this at the moment.
@@ skipping 71 matching lines @@
            static_cast<double>(malformed_event_size) / malformed_events,
            static_cast<double>(malformed_event_size) / file_size * 100);
   }
   if (file_size - accumulated_event_size != 0) {
     printf("WARNING: %" PRId64 " bytes not accounted for\n",
            file_size - accumulated_event_size);
   }
 
   return 0;
 }