diff -r 000000000000 -r 6474c204b198 netwerk/base/public/nsIURIWithPrincipal.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/base/public/nsIURIWithPrincipal.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,27 @@
+/* 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"
+
+interface nsIPrincipal;
+interface nsIURI;
+
+/**
+ * nsIURIWithPrincipal is implemented by URIs which are associated with a
+ * specific principal.
+ */
+[scriptable, uuid(626a5c0c-bfd8-4531-8b47-a8451b0daa33)]
+interface nsIURIWithPrincipal : nsISupports
+{
+    /**
+     * The principal associated with the resource returned when loading this
+     * uri.
+     */
+    readonly attribute nsIPrincipal principal;
+
+    /**
+     * The uri for the principal.
+     */
+    readonly attribute nsIURI principalUri;
+};