Trouble with chromium and updates

I’m not a fan of chromium/chrome and therefore what I have uninstalled. I even masked. The problem is I can not update my system because I have to unmask chromium. There is the possibility to upgrade without installing chromium and not have to install each package manually.

The packages involved are all of the overlay of Calculate Linux, as: calculate-lib, calculate-i18n, calculate-install, etc.

Thanks in advance

To find out who needs this package, run:

equery d chromium

This is a www-apps/chromium-adblock or www-apps/chromium-ublock.
Remove this extension with the browser:

emerge -C chromium chromium-adblock chromium-ublock

these three packages are uninstalled and blocked (masked). However the update fails because I must unmask.