GitLab

When the system firmware update includes MRC training update it can
cause the system to boot slower after the update is applied. Also the
graphics module is not available to notify the user about the MRC
training. So notify the user about slow reboot beforehand. Here are the
screenshots of the user notification with and without a slow boot user
notification.
With slow boot user notification:
https://screenshot.googleplex.com/w5GJ3VYpnbP
Without slow boot user notification:
https://screenshot.googleplex.com/pv28UdisnXS

Bug: b/129056373
Change-Id: I3c70007688ad8f4ab727721a696edfbe06535f7c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1831005
Commit-Queue: Karthikeyan Ramasubramanian <kramasub@chromium.org>
Reviewed-by: James Cook <jamescook@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#736463}