Bug 130778 - fixing Txul regression from changing 'menuactive' attribute to :-moz-menuactive pseudoclass. Get the menuactive state from the frame instead of the content node so that we don't have to call through xpconnect and js. r=dbaron, sr=hyatt, a=asa.

suite/common/bindings/toolbar.xml

@@ -177,8 +177,7 @@
       </xul:hbox>
     </content>
     
-    <implementation implements="nsIDOMXULMenuBarElement, nsIAccessibleProvider">
-      <field name="activeMenu"/>
+    <implementation implements="nsIAccessibleProvider">
       <property name="accessible">
         <getter>
           <![CDATA[