diff -r 000000000000 -r 6474c204b198 dom/webidl/VTTCue.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/VTTCue.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,63 @@
+/* -*- 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/#texttrackcue
+ */
+
+enum AutoKeyword { "auto" };
+
+enum AlignSetting {
+  "start",
+  "middle",
+  "end",
+  "left",
+  "right"
+};
+
+enum DirectionSetting {
+  "",
+  "rl",
+  "lr"
+};
+
+[Constructor(double startTime, double endTime, DOMString text),
+ Pref="media.webvtt.enabled"]
+interface VTTCue : EventTarget {
+  readonly attribute TextTrack? track;
+
+  attribute DOMString id;
+  attribute double startTime;
+  attribute double endTime;
+  attribute boolean pauseOnExit;
+  [Pref="media.webvtt.regions.enabled"]
+  attribute VTTRegion? region;
+  attribute DirectionSetting vertical;
+  attribute boolean snapToLines;
+  attribute (long or AutoKeyword) line;
+  [SetterThrows]
+  attribute AlignSetting lineAlign;
+  [SetterThrows]
+  attribute long position;
+  [SetterThrows]
+  attribute AlignSetting positionAlign;
+  [SetterThrows]
+  attribute long size;
+  attribute AlignSetting align;
+  attribute DOMString text;
+  DocumentFragment getCueAsHTML();
+
+  attribute EventHandler onenter;
+
+  attribute EventHandler onexit;
+};
+
+// Mozilla extensions.
+partial interface VTTCue {
+  [ChromeOnly]
+  attribute HTMLDivElement? displayState;
+  [ChromeOnly]
+  readonly attribute boolean hasBeenReset;
+};