Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b5eb49a..34746fc

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/5b642ef..978be74

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

Change-Id: Ifac38f68b8a735a54a596ed872f5e2fa2b5307e0
Reviewed-on: https://chromium-review.googlesource.com/1041407Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52932}