I imaged a device with 73.0.3640.0, then built chrome using simple-chrome-workflow (chrome @ 616571 1c82154972cfd49eb35346391b4763bc4bdf4e36) and was unable to log in (chrome kept crashing). Tracked it down to DCHECK in ArcAppListPrefs::RemoveApp, specifically chrome/browser/ui/app_list/arc/arc_app_list_prefs.cc:1179, which is:
  DCHECK(tracked_apps_.count(app_id));