servo: Merge #2948 - Support window.parent in the one-window case; r=Ms2ger (from jgraham:window_parent)

Source-Repo: https://github.com/servo/servo
Source-Revision: da0fa6ae51e6f600b05e800f3cd9614205bd354a

servo/src/components/script/dom/webidls/Window.webidl

@@ -34,6 +34,7 @@
   //[Unforgeable] readonly attribute WindowProxy top;
   //         attribute any opener;
   //readonly attribute WindowProxy parent;
+  readonly attribute Window parent;
   //readonly attribute Element? frameElement;
   //WindowProxy open(optional DOMString url = "about:blank", optional DOMString target = "_blank", optional DOMString features = "", optional boolean replace = false);
   //getter WindowProxy (unsigned long index);

servo/src/components/script/dom/window.rs

@@ -191,6 +191,11 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
         self.Window()
     }
 
+    fn Parent(&self) -> Temporary<Window> {
+        //TODO - Once we support iframes correctly this needs to return the parent frame
+        self.Window()
+    }
+
     fn Performance(&self) -> Temporary<Performance> {
         if self.performance.get().is_none() {
             let performance = Performance::new(self);