GitLab

This monitor will be sent requests to shutdown borealis with or without
a delay, and it will act on those requests at the appropriate times.

Bug: b/172006764
Change-Id: I81fb0cb73cfb1c868a6ebc8000cfa044a1569a21
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2569323
Commit-Queue: Nic Hollingum <hollingum@google.com>
Reviewed-by: Daniel Ng <danielng@google.com>
Cr-Commit-Position: refs/heads/master@{#833555}