Bug 1207491 - Part 3: Remove use of expression closure from browser/components/customizableui/content/. r=Gijs

--HG--
extra : commitid : CCFhLhA8g2S
extra : rebase_source : e1d244cf6f11c58cc13fedd971c9292bde7b7024

browser/components/customizableui/content/panelUI.js

@@ -17,7 +17,9 @@ XPCOMUtils.defineLazyModuleGetter(this, "ShortcutUtils",
 
 const PanelUI = {
   /** Panel events that we listen for. **/
-  get kEvents() ["popupshowing", "popupshown", "popuphiding", "popuphidden"],
+  get kEvents() {
+    return ["popupshowing", "popupshown", "popuphiding", "popuphidden"];
+  },
   /**
    * Used for lazily getting and memoizing elements from the document. Lazy
    * getters are set in init, and memoizing happens after the first retrieval.

browser/components/customizableui/content/toolbar.xml

@@ -288,7 +288,9 @@
         toolbar: this,
         contextMenu: null,
 
-        get active () !!this.contextMenu,
+        get active () {
+          return !!this.contextMenu;
+        },
 
         init: function (event) {
           let node = event.target;