I've installed Chrome in my laptop and works fine, but the user interface is too small for me. Some time ago, I made it bigger by modifying the file
/usr/share/applications/google-chrome-stable and adding the flag
--force-device-scale-factor=n %U (as suggested here).
However, this solution doesn't work anymore with Ubuntu 17.10; I've even tried to launch Chrome with that flag from a terminal and the flag is marked as unknown. Is there any other way to fix this?