Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/03bbc87..dd6b994

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/7b7eb88..2d0e03c

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

Change-Id: I6a9b88a4fe1b419fdca0f57848b680aea861a1e7
Reviewed-on: https://chromium-review.googlesource.com/1189423
Commit-Queue: V8 Autoroller <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Reviewed-by: V8 Autoroller <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#55419}