1 files changed, 19 insertions, 0 deletions
diff --git a/dom/webidl/PositionStateEvent.webidl b/dom/webidl/PositionStateEvent.webidl
new file mode 100644
index 0000000000..a393172991
--- /dev/null
+++ b/dom/webidl/PositionStateEvent.webidl
@@ -0,0 +1,19 @@
+/**
+ * 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/.
+ */
+
+dictionary PositionStateEventInit : EventInit {
+  required double duration;
+  required double playbackRate;
+  required double position;
+};
+
+[Exposed=Window, ChromeOnly]
+interface PositionStateEvent : Event {
+  constructor(DOMString type, optional PositionStateEventInit eventInitDict = {});
+  readonly attribute double duration;
+  readonly attribute double playbackRate;
+  readonly attribute double position;
+};