Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/66badbd..25c380c

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

Change-Id: Iaf3e13ec8f9174321c61016c622a046a71ef6335
Reviewed-on: https://chromium-review.googlesource.com/1214867
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: V8 Autoroller <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#55747}