GitLab

Summary of changes available at:
https://chromium.googlesource.com/chromium/blink/+log/21980cb..c3a905f

TBR=dpranke@chromium.org,apavlov@chromium.org

Review URL: https://codereview.chromium.org/584633003

Cr-Commit-Position: refs/heads/master@{#295542}