GitLab

Summary of changes available at:
https://chromium.googlesource.com/chromium/blink/+log/3d06386..ef8cdb9

TBR=eustas@chromium.org,jsbell@chromium.org

Review URL: https://codereview.chromium.org/609383003

Cr-Commit-Position: refs/heads/master@{#297935}