diff -r 000000000000 -r 6474c204b198 netwerk/ipc/nsIRemoteOpenFileListener.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/ipc/nsIRemoteOpenFileListener.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set sw=4 ts=4 et tw=80 : */
+/* 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"
+
+/**
+ * nsIRemoteOpenFileListener: passed to RemoteOpenFileChild::AsyncRemoteFileOpen.
+ *
+ * Interface for notifying when the file has been opened and is available in
+ * child.
+ */
+[uuid(5c89208c-fe2b-4e04-9783-93bcf5c3b783)]
+interface nsIRemoteOpenFileListener : nsISupports
+{
+    /**
+     * Called when result of opening RemoteOpenFileChild:AsyncRemoteFileOpen()
+     * is available in child.
+     *
+     * @param aOpenStatus: nsresult from opening file in parent.  If NS_OK,
+     * then a following call to RemoteOpenFileChild::OpenNSPRFileDesc that
+     * passes the same flags as were passed to
+     * RemoteOpenFileChild::AsyncRemoteFileOpen is guaranteed to succeed.  If
+     * !NS_OK or if different flags were passed, the call will fail.
+     */
+    void onRemoteFileOpenComplete(in nsresult aOpenStatus);
+};
+