Make the externally connectable browser test clobber all of the builtins,

chrome/renderer/resources/extensions/last_error.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var DCHECK = requireNative('logging').DCHECK;
 var GetAvailability = requireNative('v8_context').GetAvailability;
 var GetGlobal = requireNative('sendRequest').GetGlobal;
 
 // Utility for setting chrome.*.lastError.
 //
@@ skipping 36 matching lines @@
 /**
  * Runs |callback(args)| with last error args as in set().
  *
  * The target chrome object is the global object's of the callback, so this
  * method won't work if the real callback has been wrapped (etc).
  */
 function run(name, message, stack, callback, args) {
   var targetChrome = GetGlobal(callback).chrome;
   set(name, message, stack, targetChrome);
   try {
-    callback.apply(undefined, args);
+    $Function.apply(callback, undefined, args);
   } finally {
     clear(targetChrome);
   }
 }
 
 exports.clear = clear;
 exports.set = set;
 exports.run = run;