GitLab

Replace them with DialogDelegate::set_buttons() :)

Bug: 1011446
Change-Id: I3cadc0851e272d60a48a540ec6b3da03d47ee377
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1992561
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Peter Boström <pbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#729776}