Add systemPreferences module

atom/browser/api/atom_api_system_preferences_mac.mm

@@ -0,0 +1,15 @@
+// Copyright (c) 2016 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/browser/api/atom_api_system_preferences.h"
+
+namespace atom {
+
+namespace api {
+
+
+
+}  // namespace api
+
+}  // namespace atom