GitLab

Handle the edge case correctly to match ppi spec.
Added test to verify.

Bug: none
Change-Id: Ia32dc88d535446a593131a6237b6bbd47ed6edd8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2107237Reviewed-by: Malay Keshav <malaykeshav@chromium.org>
Commit-Queue: Mitsuru Oshima <oshima@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751445}