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- Whenever the Chrome OS print preview is opened this sends a printer
  status request for each printer in the recent destinations list. The
  status comes back from the printer and the color indicator is updated
  appropriately.

- The "dot" span for the status indicator will be replaced by an icon
  in a subsequent CL.

Bug: 1059607
Change-Id: I364f852b6be33db3b5014c04b11f14e5aca2c639
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2191976
Commit-Queue: Gavin Williams <gavinwill@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774505}