GitLab

Make the function early return if it encounters a non-ASCII character.

BUG=904634

Change-Id: If39f34785a53c18a5768960a9445db31f550ca4d
Reviewed-on: https://chromium-review.googlesource.com/c/1332714
Commit-Queue: Alexei Filippov <alph@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611438}