Fix for regression bug 174432. toolbox no longer picks up -moz-appearance

r=bryner, sr=ben, a=dbaron

xpfe/global/resources/content/xul.css

@@ -207,6 +207,7 @@ caption {
 /******* toolbar *******/
 
 toolbox { 
+  -moz-binding: url("chrome://global/content/bindings/toolbar.xml#toolbar-base");
   -moz-box-orient: vertical;
 }