Bug 1330099 - Enable object-shorthand eslint rule. r=jryans

MozReview-Commit-ID: 3wA25rfznBv

devtools/client/performance/panel.js

@@ -90,7 +90,7 @@ PerformancePanel.prototype = {
     this._destroyed = true;
   }),
 
-  _checkRecordingStatus: function () {
+  _checkRecordingStatus() {
     if (this.panelWin.PerformanceController.isRecording()) {
       this.toolbox.highlightTool("performance");
     } else {