添加用户追踪事件

src/Common/config.cpp

@@ -58,6 +58,7 @@ const string kBroadcastMediaChanged = "kBroadcastMediaChanged";
 const string kBroadcastRecordMP4 = "kBroadcastRecordMP4";
 const string kBroadcastHttpRequest = "kBroadcastHttpRequest";
 const string kBroadcastHttpAccess = "kBroadcastHttpAccess";
+const string kBroadcastTrackHttpClient = "kBroadcastTrackHttpClient";
 const string kBroadcastOnGetRtspRealm = "kBroadcastOnGetRtspRealm";
 const string kBroadcastOnRtspAuth = "kBroadcastOnRtspAuth";
 const string kBroadcastMediaPlayed = "kBroadcastMediaPlayed";