BUG=chromium:973247

Change-Id: I8be6386fc3ab9ce6e8d9558862dfd0a7c74a5e6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1743018
Commit-Queue: Yaakov Shaul <yshaul@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>