diff -r 000000000000 -r 6474c204b198 services/fxaccounts/interfaces/nsIFxAccountsUIGlue.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/services/fxaccounts/interfaces/nsIFxAccountsUIGlue.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+/* 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"
+
+[scriptable, uuid(ab8d0700-9577-11e3-a5e2-0800200c9a66)]
+interface nsIFxAccountsUIGlue : nsISupports
+{
+  // Returns a Promise.
+  jsval signInFlow();
+
+  // Returns a Promise.
+  jsval refreshAuthentication(in DOMString accountId);
+};