Add local state flag to force online login for a user
This CL adds a flag in local stat that forces a user to go through the
online login flow. This flag will be used to implement a policy that
forces SAML users to log in via the online authentication flow
periodically.
BUG=332081
TEST=Manual (automated tests coming in follow-up CL that adds the policy)
Review URL: https://codereview.chromium.org/
143873012
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247152 0039d316-1c4b-4281-b951-d872f2087c98