Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapul/+log/b7d8fe8..6962f5c

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review-Url: https://chromiumcodereview.appspot.com/2442173002
Cr-Commit-Position: refs/heads/master@{#40517}