diff -r 000000000000 -r 6474c204b198 rdf/base/idl/nsIRDFPropagatableDataSource.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rdf/base/idl/nsIRDFPropagatableDataSource.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"
+
+/**
+ * An nsIRDFPropagatableDataSource provides an ability to suppress
+ * synchronization notifications.
+ */
+[scriptable, uuid(5a9b4770-9fcb-4307-a12e-4b6708e78b97)]
+interface nsIRDFPropagatableDataSource: nsISupports {
+
+  /**
+   * Set this value to <code>true</code> to enable synchronization
+   * notifications.
+   *
+   * Set this value to <code>false</code> to disable synchronization
+   * notifications.
+   *
+   * By default, this value is <code>true</code>.
+   */
+  attribute boolean propagateChanges;
+
+};