R=mstarzinger@chromium.org

Bug: v8:6593
Change-Id: Ica794c7b0d779f04647d2b2c5ce7762a537620ae
Reviewed-on: https://chromium-review.googlesource.com/759793
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49469}