GitLab

Adding 'show_attribution' field to details proto and use it to control
if the modal dialog will show when user clicking on the image in
autobot details sections.

Change-Id: I8b5e05a124b88b85aba8579d079d6ef54e0bf9de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1547197Reviewed-by: Jordan Demeulenaere <jdemeulenaere@chromium.org>
Commit-Queue: Hui Wu <wuandy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#646298}