This is preparation to fix the issue.

Bug: 992282
Change-Id: I64b237670bf460ff765df3eaf069b0e0bdcfb31d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2237268
Commit-Queue: Ye Kuang <yekuang@google.com>
Reviewed-by: Ye Kuang <yekuang@google.com>
Auto-Submit: Takuto Ikuta <tikuta@chromium.org>