1 files changed, 27 insertions, 0 deletions
diff --git a/dom/webidl/MessagePort.webidl b/dom/webidl/MessagePort.webidl
new file mode 100644
index 0000000000..d5a54e124b
--- /dev/null
+++ b/dom/webidl/MessagePort.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/.
+ *
+ * For more information on this interface, please see
+ * http://www.whatwg.org/specs/web-apps/current-work/#channel-messaging
+ */
+
+[Exposed=(Window,Worker,AudioWorklet)]
+interface MessagePort : EventTarget {
+  [Throws]
+  void postMessage(any message, sequence<object> transferable);
+  [Throws]
+  void postMessage(any message, optional PostMessageOptions options = {});
+
+  void start();
+  void close();
+
+  // event handlers
+  attribute EventHandler onmessage;
+  attribute EventHandler onmessageerror;
+};
+
+dictionary PostMessageOptions {
+  sequence<object> transfer = [];
+};