Chrome OS: Fix and re-enable OobeInteractiveUITest

This is re-land of the original CL
https://chromium-review.googlesource.com/c/1338882 with more waiting in case of
slow debug/ASAN bots.

Bug: 891277
Change-Id: I1aae435808b155d13241c7cd95215bf4a71bf630
Reviewed-on: https://chromium-review.googlesource.com/c/1362814
Reviewed-by: Jacob Dufault <jdufault@chromium.org>
Commit-Queue: Alexander Alekseev <alemate@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614111}
4 files changed