GitLab

Replace deprecated ref field with refs field

R=tandrii@chromium.org

No-Try: true
No-Tree-Checks: true
Bug: 836232
Change-Id: I9fc2feb8dc92d76411126449615578605419c248
Reviewed-on: https://chromium-review.googlesource.com/1124468Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572248}