See http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/4695/steps/Check%20%28flakes%29/logs/d8-worker-sharedarray..

BUG=v8:4306
R=machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
LOG=n

Review URL: https://codereview.chromium.org/1241713003

Cr-Commit-Position: refs/heads/master@{#29664}