GitLab

Hidden buttons are no longer accessible by pressing TAB.
Cookie buttons are no longer accessible by pressing TAB.
  The cookie buttons are still accessible by pressing left/right.
  The "Remove" button is still accessible by pressing TAB.

BUG=408470

Review URL: https://codereview.chromium.org/521643003

Cr-Commit-Position: refs/heads/master@{#292770}