Added AudioTrack, AudioTrackList, VideoTrack, VideoTrackList, and TrackEvent interfaces

1 files changed, 15 insertions, 0 deletions

diff --git a/components/script/dom/webidls/TrackEvent.webidl b/components/script/dom/webidls/TrackEvent.webidl
new file mode 100644
index 00000000000..214583e3245
--- /dev/null
+++ b/components/script/dom/webidls/TrackEvent.webidl
@@ -0,0 +1,15 @@
+/* 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 https://mozilla.org/MPL/2.0/. */
+
+// https://html.spec.whatwg.org/multipage/#the-trackevent-interface
+
+[Exposed=Window,
+ Constructor(DOMString type, optional TrackEventInit eventInitDict)]
+interface TrackEvent : Event {
+  readonly attribute (VideoTrack or AudioTrack or TextTrack)? track;
+};
+
+dictionary TrackEventInit : EventInit {
+  (VideoTrack or AudioTrack or TextTrack)? track = null;
+};