GitLab

Uses BubbleDialogDelegateView::set_accept_events and removes
BubbleFrameView::set_hit_test_transparent

See related https://crbug.com/978985

Change-Id: I659e208f886aea331f18317ada532e0bef7797e4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1678949Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Caroline Rising <corising@chromium.org>
Reviewed-by: Dana Fried <dfried@chromium.org>
Commit-Queue: Evan Stade <estade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#695343}