Bug 31767: Avoid using intl.locale.requested pref directly

chrome/content/aboutTor/aboutTor-content.js

@@ -57,7 +57,8 @@ var AboutTorListener = {
 
   onPageLoad: function() {
     // Arrange to update localized text and links.
-    bindPrefAndInit("intl.locale.requested", aNewVal => {
+    bindPrefAndInit("intl.locale.requested", () => {
+      const aNewVal = Services.locale.requestedLocale;
       if (aNewVal !== null) {
         this.onLocaleChange(aNewVal);
       }