@Override
    public Bundle confirmCredentials(
            final AccountAuthenticatorResponse response, final Account account,
            final Bundle options) {
        return null;
    }
The user has requested to add a new account to the system. We return an
intent that will launch our login screen if the user has not logged in
yet, otherwise our activity will just pass the user's credentials on to
the account manager.
app/src/main/java/com/github/pockethub/android/accounts/AccountAuthenticator.java