GitLab

This allows to reuse this function for all platforms. We'll need it in
the follow-up CL with PrintingPaperSizeDefault policy.

Bug: 1015690
Change-Id: Ibb5daa2958e88b376556f3374b88ab8457d08402
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2144030Reviewed-by: Sean Kau <skau@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Nikita Podguzov <nikitapodguzov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#759350}