/usr/share/applications/org.gnome.Shell.PortalHelper.desktop is in gnome-shell 3.18.4-0ubuntu3.
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 10 | [Desktop Entry]
Name=Network Login
Type=Application
Exec=gapplication launch org.gnome.Shell.PortalHelper
DBusActivatable=true
NoDisplay=true
Icon=network-workgroup
StartupNotify=true
OnlyShowIn=GNOME;
X-Ubuntu-Gettext-Domain=gnome-shell
|