This is now a blocking bug on a lab closure. It needs an owner, and rapid progress. Who should own it?

Fixing the login prompt dependency appears to have fixed AU tests too
https://chrome-internal-review.googlesource.com/272898

AUTest suite now passes:
https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_rialto-release/builds/277/steps/AUTest%20%5Bau%5D/logs/stdio


Keeping this bug open to re-enable more of the AU tests, e.g. tests_provision_AutoUpdate

This issue has been marked as started, but has no owner. Making available.