User Defaults: Change user defaults based on decission by new UI team - T37518

Currently these changes are not saved in startup.blend to avoid bloating
our repo whenever we want to make minor changes.

source/blender/editors/include/UI_interface.h

@@ -687,6 +687,7 @@ void UI_remove_popup_handlers_all(struct bContext *C, struct ListBase *handlers)
 
 void UI_init(void);
 void UI_init_userdef(void);
+void UI_init_userdef_factory(void);
 void UI_reinit_font(void);
 void UI_exit(void);