diff -r 000000000000 -r 6474c204b198 dom/system/moz.build
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/system/moz.build	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,59 @@
+# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+toolkit = CONFIG['MOZ_WIDGET_TOOLKIT']
+
+if toolkit in ('qt'):
+    DIRS += ['qt']
+elif toolkit == 'windows':
+    DIRS += ['windows']
+elif toolkit == 'cocoa':
+    DIRS += ['mac']
+elif toolkit == 'android':
+    DIRS += ['android']
+elif toolkit == 'gonk':
+    DIRS += ['gonk']
+
+TEST_DIRS += ['tests']
+
+XPIDL_SOURCES += [
+    'nsIOSFileConstantsService.idl',
+]
+
+XPIDL_MODULE = 'dom_system'
+
+EXPORTS += [
+    'nsDeviceSensors.h',
+]
+
+EXPORTS.mozilla += [
+    'OSFileConstants.h',
+]
+
+UNIFIED_SOURCES += [
+    'nsDeviceSensors.cpp',
+    'OSFileConstants.cpp',
+]
+
+EXTRA_COMPONENTS += [
+    'NetworkGeolocationProvider.js',
+    'NetworkGeolocationProvider.manifest',
+]
+
+FAIL_ON_WARNINGS = True
+
+include('/ipc/chromium/chromium-config.mozbuild')
+
+FINAL_LIBRARY = 'gklayout'
+# We fire the nsDOMDeviceAcceleration
+LOCAL_INCLUDES += [
+    '/dom/base',
+    '/dom/bindings',
+    '/js/xpconnect/loader',
+]
+
+DEFINES['DLL_PREFIX'] = '"%s"' % CONFIG['DLL_PREFIX']
+DEFINES['DLL_SUFFIX'] = '"%s"' % CONFIG['DLL_SUFFIX']