GitLab

Remove artist visibility change in OnNewMediaSession since artist
visibility is set in SetArtist().

Change-Id: I455c0a169b06e320db3a0f758dd5b48d59881a8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2533283
Commit-Queue: Jazz Xu <jazzhsu@chromium.org>
Auto-Submit: Jazz Xu <jazzhsu@chromium.org>
Reviewed-by: Tetsui Ohkubo <tetsui@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826909}