Remove intrinsic Root::r()

components/script/dom/domstringmap.rs

@@ -28,7 +28,7 @@ impl DOMStringMap {
     pub fn new(element: &HTMLElement) -> Root<DOMStringMap> {
         let window = window_from_node(element);
         reflect_dom_object(box DOMStringMap::new_inherited(element),
-                           window.r(),
+                           &*window,
                            DOMStringMapBinding::Wrap)
     }
 }