/usr/share/xsessions/gnome-classic.desktop is in gnome-shell-extensions 3.10.1-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | [Desktop Entry]
Name=GNOME Classic
Comment=This session logs you into GNOME Classic
Exec=gnome-session-classic
TryExec=gnome-session
Icon=
Type=Application
X-LightDM-DesktopName=GNOME
X-Ubuntu-Gettext-Domain=gnome-shell-extensions
|