GitLab

There is no request dialog and request pending dialog for theme request.
And the request is confirmed automatically.

Enable these dialogs for theme request for better consistency as admin
is able to block theme like an extension

Bug: 1077349

Change-Id: I96fe2bafc59f97851d089c646294b33098f18492
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2175740Reviewed-by: Karan Bhatia <karandeepb@chromium.org>
Commit-Queue: Owen Min <zmin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#802904}