diff -r 000000000000 -r 6474c204b198 dom/media/nsIDOMMediaStream.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/media/nsIDOMMediaStream.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -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/. */
+
+#include "nsISupports.idl"
+
+// undef the GetCurrentTime macro defined in WinBase.h from the MS Platform SDK
+%{C++
+#ifdef GetCurrentTime
+#undef GetCurrentTime
+#endif
+%}
+
+[scriptable, builtinclass, uuid(3ef760bb-ff19-4dbb-b552-af27ab84b9b8)]
+interface nsIDOMMediaStream : nsISupports
+{
+  /* Placeholder interface only; will be removed after further WebIDL conversion.
+     Do not add anything here. */
+};
+
+[scriptable, builtinclass, uuid(dd37150a-9823-4605-ac4c-3516629a8aaf)]
+interface nsIDOMLocalMediaStream : nsIDOMMediaStream
+{
+  /* Placeholder interface only; will be removed after further WebIDL conversion.
+     Do not add anything here. */
+};