Transform JitsiTrackError into format acceptable by callstats

JitsiTrackError.js

             case "PermissionDeniedError":
             case "SecurityError":
                 this.name = JitsiTrackErrors.PERMISSION_DENIED;
-                this.message = error.message
-                    || TRACK_ERROR_TO_MESSAGE_MAP[
+                this.message = TRACK_ERROR_TO_MESSAGE_MAP[
                         JitsiTrackErrors.PERMISSION_DENIED]
                         + (this.gum.devices || []).join(", ");
                 break;
                         constraintName === "width" ||
                         constraintName === "height")) {
                     this.name = JitsiTrackErrors.UNSUPPORTED_RESOLUTION;
-                    this.message = error.message ||
-                        TRACK_ERROR_TO_MESSAGE_MAP[
+                    this.message = TRACK_ERROR_TO_MESSAGE_MAP[
                             JitsiTrackErrors.UNSUPPORTED_RESOLUTION] +
                         getResolutionFromFailedConstraint(constraintName,
                             options);
                 } else {
                     this.name = JitsiTrackErrors.CONSTRAINT_FAILED;
-                    this.message = error.message ||
-                        TRACK_ERROR_TO_MESSAGE_MAP[
+                    this.message = TRACK_ERROR_TO_MESSAGE_MAP[
                             JitsiTrackErrors.CONSTRAINT_FAILED] +
                         error.constraintName;
                 }

modules/statistics/statistics.js

 var StatisticsEvents = require("../../service/statistics/Events");
 var CallStats = require("./CallStats");
 var ScriptUtil = require('../util/ScriptUtil');
+var JitsiTrackError = require("../../JitsiTrackError");
 
 // Since callstats.io is a third party, we cannot guarantee the quality of their
 // service. More specifically, their server may take noticeably long time to
  * @param {Error} e error to send
  */
 Statistics.prototype.sendGetUserMediaFailed = function (e) {
-    if(this.callstats)
-        CallStats.sendGetUserMediaFailed(e, this.callstats);
+    if(this.callstats) {
+        CallStats.sendGetUserMediaFailed(
+            e instanceof JitsiTrackError
+                ? formatJitsiTrackErrorForCallStats(e)
+                : e,
+            this.callstats);
+    }
 };
 
 /**
  * @param {Error} e error to send
  */
 Statistics.sendGetUserMediaFailed = function (e) {
-    CallStats.sendGetUserMediaFailed(e, null);
+    CallStats.sendGetUserMediaFailed(
+        e instanceof JitsiTrackError
+            ? formatJitsiTrackErrorForCallStats(e)
+            : e,
+        null);
 };
 
 /**