Bug 1542299 - Remove Array.unshift usage from tabbrowser.js. r=Standard8

Differential Revision: https://phabricator.services.mozilla.com/D26685

--HG--
extra : moz-landing-system : lando

browser/base/content/tabbrowser.js

@@ -4829,9 +4829,9 @@ class TabProgressListener {
     delete this.mBrowser;
   }
 
-  _callProgressListeners() {
-    Array.unshift(arguments, this.mBrowser);
-    return gBrowser._callProgressListeners.apply(gBrowser, arguments);
+  _callProgressListeners(...args) {
+    args.unshift(this.mBrowser);
+    return gBrowser._callProgressListeners.apply(gBrowser, args);
   }
 
   _shouldShowProgress(aRequest) {