So that presubmit API can use it to check owners
approval.

Change-Id: Ie26c8a83de02b750fd92b4f419fe4d55809e6dbd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2621745Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>