GitLab

Also replace ButtonListener with callbacks in this CL.

Bug: 1130078, 772945
Change-Id: Idabf368ddd6e4e48cce78b7b03a88a69028da2d8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2466568
Commit-Queue: Keren Zhu <kerenzhu@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#816709}