GitLab

Summary of changes available at:
https://chromium.googlesource.com/chromium/blink/+log/5777092..e229507

TBR=pdr@chromium.org,wjmaclean@chromium.org,ager@chromium.org

Review URL: https://codereview.chromium.org/603453004

Cr-Commit-Position: refs/heads/master@{#296563}