Issue 1561 - Move unit tests out of the browser`s content area

chrome/content/tests/ui/icon_position.js

 (function()
 {
   let {application} = require("info");
   if (application != "firefox")
     return;
 
   let CustomizableUI =  null;
   let usingShim = false;
   try
   {
     ({CustomizableUI}) = Cu.import("resource:///modules/CustomizableUI.jsm", null);
   }
   catch (e)
   {
     usingShim = true;
     // No built-in CustomizableUI API, use our own implementation.
     ({CustomizableUI}) = require("customizableUI");
   }
 
-  let wnd = Utils.getChromeWindow(window);
+  let wnd = UI.currentWindow;
   let defaultParent = require("appSupport").defaultToolbarPosition.parent;
 
   let toolbox;
   if (usingShim)
   {
     let toolbar = wnd.document.getElementById(defaultParent);
     if (!toolbar)
       return;
     toolbox = toolbar.toolbox;
   }
@@ skipping 55 matching lines @@
     ok(!placement, "Button is invisible");
 
     UI.toggleToolbarIcon();
     placement = CustomizableUI.getPlacementOfWidget("abp-toolbarbutton");
     ok(placement, "Button is visible");
     if (placement)
       equal(placement.area, CustomizableUI.AREA_NAVBAR, "Button is at default position");
   });
 
 })();