GitLab

This is a reland of 4981992a
Original change's description:
> MD Settings: Migrate settings-toggle-button to use cr-toggle.
> 
> Bug: 768073
> Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
> Change-Id: If3efa3993d9ff75cce73eb48d583adb0ea5db543
> Reviewed-on: https://chromium-review.googlesource.com/686041
> Commit-Queue: Demetrios Papadopoulos <dpapad@chromium.org>
> Reviewed-by: Scott Chen <scottchen@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#505269}

Bug: 768073
Change-Id: I1926a5763c4331008f3734b4a977c5ecf3aedd82
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Reviewed-on: https://chromium-review.googlesource.com/709874
Commit-Queue: Demetrios Papadopoulos <dpapad@chromium.org>
Reviewed-by: Scott Chen <scottchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#508919}