diff -r 000000000000 -r 6474c204b198 dom/interfaces/stylesheets/nsIDOMMediaList.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/interfaces/stylesheets/nsIDOMMediaList.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "domstubs.idl"
+
+/**
+ * The nsIDOMMediaList interface is a datatype for a list of media
+ * types in the Document Object Model.
+ *
+ * For more information on this interface please see
+ * http://www.w3.org/TR/DOM-Level-2-Style
+ */
+
+[scriptable, uuid(9b0c2ed7-111c-4824-adf9-ef0da6dad371)]
+interface nsIDOMMediaList : nsISupports
+{
+           attribute DOMString        mediaText;
+                                        // raises(DOMException) on setting
+
+  readonly attribute unsigned long    length;
+  DOMString          item(in unsigned long index);
+  void               deleteMedium(in DOMString oldMedium)
+                                        raises(DOMException);
+  void               appendMedium(in DOMString newMedium)
+                                        raises(DOMException);
+};