If you have issues with installing it, remove the current Chromium first, then install. I think they have changed the location to /etc/Chromium which for whatever reasons caused issues with the previous chromium installation, so remove it first.
Also, users running gnome, may have to uninstall chrome-gnome-shell and then reinstall it after you install chromium. I think there are some critical bugs with chrome-gnome-shell also ...maintainer needs to update.