GitLab

Summary of changes available at:
https://chromium.googlesource.com/chromium/blink/+log/c996f78..a274a19

TBR=rtoy@chromium.org,lushnikov@chromium.org,vsevik@chromium.org

Review URL: https://codereview.chromium.org/799773002

Cr-Commit-Position: refs/heads/master@{#308056}