1 files changed, 18 insertions, 0 deletions
diff --git a/dom/webidl/MediaList.webidl b/dom/webidl/MediaList.webidl
new file mode 100644
index 0000000000..6b58a809fa
--- /dev/null
+++ b/dom/webidl/MediaList.webidl
@@ -0,0 +1,18 @@
+/* -*- 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/. */
+
+// https://drafts.csswg.org/cssom/#the-medialist-interface
+
+[Exposed=Window]
+interface MediaList {
+  stringifier attribute [LegacyNullToEmptyString] UTF8String mediaText;
+
+  readonly attribute unsigned long    length;
+  getter UTF8String? item(unsigned long index);
+  [Throws]
+  undefined          deleteMedium(UTF8String oldMedium);
+  [Throws]
+  undefined          appendMedium(UTF8String newMedium);
+};