This file is indexed.

/etc/signon-ui/webkit-options.d/foursquare.com.conf is in account-plugin-foursquare 0.11+14.04.20140409.1-0ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
2
UsernameField = input[id="username"]
PasswordField = input[id="password"]