GitLab

Summary of changes available at:
https://chromium.googlesource.com/chromium/blink/+log/50e6008..49386a6

TBR=dstockwell@chromium.org,aboxhall@chromium.org

Review URL: https://codereview.chromium.org/656533005

Cr-Commit-Position: refs/heads/master@{#300179}