To set Group Policy for Google Chrome, open Local Computer Policy and go to Computer Configuration > Administrative Templates. Right-click Administrative Templates and choose Add/Remove Templates.

For example, suppose that a local computer-level policy set the minimum password length to six characters and a domain-level policy set the minimum password length to eight characters.

Admins who want to toggle on this additional defense against brute force attacks can find the "Allow Administrator account lockout" policy under Local Computer Policy\Computer Configuration ...