GitLab

Add backlight info to the probe service.

Bug: b:158658869
Change-Id: I9c9e19bbc3ee8f46517f9b06faf314280d40e823
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2274877
Commit-Queue: Oleh Lamzin <lamzin@google.com>
Reviewed-by: Roland Bock <rbock@google.com>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Mahmoud Gawad <mgawad@google.com>
Cr-Commit-Position: refs/heads/master@{#786261}