gnome-session-common 3.26.0-0ubuntu2 (armhf binary) in ubuntu artful

 The GNOME Session Manager is in charge of starting the core components
 of the GNOME desktop, and applications that should be launched at
 login time. It also features a way to save and restore currently
 running applications.
 .
 This package contains the translations, data files and startup scripts
 which are common to the GNOME and GNOME fallback sessions.