1 files changed, 27 insertions, 0 deletions
diff --git a/dom/webidl/RTCTrackEvent.webidl b/dom/webidl/RTCTrackEvent.webidl
new file mode 100644
index 000000000..a87915bbe
--- /dev/null
+++ b/dom/webidl/RTCTrackEvent.webidl
@@ -0,0 +1,27 @@
+/* -*- 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://w3c.github.io/webrtc-pc/#idl-def-RTCTrackEvent
+ */
+
+dictionary RTCTrackEventInit : EventInit {
+    required RTCRtpReceiver        receiver;
+    required MediaStreamTrack      track;
+    sequence<MediaStream> streams = [];
+};
+
+[Pref="media.peerconnection.enabled",
+ Constructor(DOMString type, RTCTrackEventInit eventInitDict)]
+interface RTCTrackEvent : Event {
+    readonly        attribute RTCRtpReceiver           receiver;
+    readonly        attribute MediaStreamTrack         track;
+
+// TODO: Use FrozenArray once available. (Bug 1236777)
+//  readonly        attribute FrozenArray<MediaStream> streams;
+
+    [Frozen, Cached, Pure]
+    readonly        attribute sequence<MediaStream> streams; // workaround
+};