diff -r 000000000000 -r 6474c204b198 widget/nsIPrintSession.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/nsIPrintSession.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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"
+
+/**
+ * nsIPrintSession
+ *
+ * Stores data pertaining only to a single print job. This
+ * differs from nsIPrintSettings, which stores data which may
+ * be valid across a number of jobs.
+ *
+ * This interface is currently empty since, at this point, only
+ * platform-specific derived interfaces offer any functionality.
+ * It is here as a placeholder for when the printing session has
+ * XP functionality.
+ *
+ * The creation of a component which implements this interface
+ * will begin the session. Likewise, destruction of that object
+ * will end the session.
+ * 
+ * @status
+ */
+
+[uuid(2f977d52-5485-11d4-87e2-0010a4e75ef2)]
+
+interface nsIPrintSession : nsISupports
+{
+};