1 files changed, 21 insertions, 0 deletions
diff --git a/dom/webidl/TrackEvent.webidl b/dom/webidl/TrackEvent.webidl
new file mode 100644
index 0000000000..730c2b8148
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+++ b/dom/webidl/TrackEvent.webidl
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+/* -*- 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/.
+ *
+ * The origin of this IDL file is
+ * http://www.whatwg.org/specs/web-apps/current-work/#trackevent
+ */
+
+[Exposed=Window]
+interface TrackEvent : Event
+{
+  constructor(DOMString type, optional TrackEventInit eventInitDict = {});
+
+  readonly attribute (VideoTrack or AudioTrack or TextTrack)? track;
+};
+
+dictionary TrackEventInit : EventInit
+{
+  (VideoTrack or AudioTrack or TextTrack)? track = null;
+};