GitLab

- Accepts a printer id, kicks off a printer status request, then
  once complete broadcasts the status to "printer-status-update".

Bug: 1059607
Change-Id: I91b30632a6682a4705616d714038a7826483753c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2128236
Commit-Queue: Gavin Williams <gavinwill@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#760330}