GitLab

Change scrub bar color to #8AB4F8, 100% opacity for played,
30% for remaining track.

Bug: 1008228
Change-Id: I1cbc1c80bb3bcdd2bf450bfde90be3b07007c382
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1825792
Commit-Queue: Jazz Xu <jazzhsu@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Tommy Steimel <steimel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#700384}