R=mstarzinger@chromium.org

Review-Url: https://codereview.chromium.org/2650193002
Cr-Original-Commit-Position: refs/heads/master@{#42892}
Committed: https://chromium.googlesource.com/v8/v8/+/eef855a1dc956e9db03ec09abca1d732d379861b
Review-Url: https://codereview.chromium.org/2650193002
Cr-Commit-Position: refs/heads/master@{#43360}