GitLab

Creates a function in ScanningHandler to centralize the logic for
localizing plural strings.

Bug: 1059779
Change-Id: I5cdd80ccf04e16945ae1a273941f846e1f39c75b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2584292
Commit-Queue: Gavin Williams <gavinwill@chromium.org>
Reviewed-by: Jesse Schettler <jschettler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835798}