followup attempt to resolve new intermittent timeout on windows in test_name_nsRootAcc.xul (Bug 525175). r=surkov

accessible/tests/mochitest/test_name_nsRootAcc.xul

@@ -28,7 +28,9 @@
     var w = window.openDialog("chrome://mochikit/content/a11y/accessible/name_nsRootAcc_wnd.xul",
                               "nsRootAcc_name_test", 
                               "chrome,width=600,height=600");
+    if (LINUX) {
       w.focus();
+    }
     
   ]]>
   </script>