diff -r 000000000000 -r 6474c204b198 netwerk/ipc/PRemoteOpenFile.ipdl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/ipc/PRemoteOpenFile.ipdl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et tw=80 ft=cpp : */
+
+/* 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 protocol PNecko;
+
+namespace mozilla {
+namespace net {
+
+/**
+ * Protocol to support RemoteOpenFile, an nsIFile that opens it's file handle on
+ * the parent instead of the child (since child lacks permission to do so).
+ */
+protocol PRemoteOpenFile
+{
+  manager PNecko;
+
+child:
+  // Your file handle is ready, Sir...
+  __delete__(FileDescriptor fd);
+};
+
+
+} // namespace net
+} // namespace mozilla