Backout a145ded68994, e0cf397089ec & 1545e91c658e (bug 798491) for bustage on a CLOSED TREE

browser/devtools/commandline/test/helpers.js

@@ -54,7 +54,7 @@
  * of GCLI and can be run as a test case.
  */
 
-this.EXPORTED_SYMBOLS = [ 'helpers' ];
+var EXPORTED_SYMBOLS = [ 'helpers' ];
 
 var test = { };
 
@@ -503,7 +503,7 @@ DeveloperToolbarTest.closeAllTabs = function() {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-this.helpers = {};
+var helpers = {};
 
 var assert = { ok: ok, is: is, log: info };