GitLab

Notifications should use the proper background color so the text on them
is readable. This also derives the inline settings, actions row and
large image background colors from that native background color so light
and dark themes work correctly.

Screenshots: https://imgur.com/rxq48G7

Bug: 1113313,1065604
Change-Id: I20b833a3a157eabc0c7b03385a4ed88651cffa08
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2396297Reviewed-by: Yoshiki Iguchi <yoshiki@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Richard Knoll <knollr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#811636}