Google chrome will ask by default for save password when you login to accounts like gmail, facebook, twitter, linkedin and many more. You credentials will be saved in google chrome browser if you choose save so that you don’t want to enter your credentials like username and password for those account when you login through chrome. But it is not a secure for your account if someone used your system they can access your accounts. So that we need to delete or clear saved password on chrome from time to time to secure your accounts