diff -r 000000000000 -r 6474c204b198 toolkit/system/gnome/nsGSettingsService.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/system/gnome/nsGSettingsService.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,27 @@
+/* -*- Mode: C++; 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/. */
+
+#ifndef nsGSettingsService_h_
+#define nsGSettingsService_h_
+
+#include "nsIGSettingsService.h"
+
+#define NS_GSETTINGSSERVICE_CID \
+{0xbfd4a9d8, 0xd886, 0x4161, {0x81, 0xef, 0x88, 0x68, 0xda, 0x11, 0x41, 0x70}}
+
+class nsGSettingsService MOZ_FINAL : public nsIGSettingsService
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIGSETTINGSSERVICE
+
+  NS_HIDDEN_(nsresult) Init();
+
+private:
+  ~nsGSettingsService();
+};
+
+#endif
+