Split AuraLinux accessibility formatting code into methods

This makes the code a bit easier to read.

Bug: 971966
Change-Id: If073a03773185ee6931208d15e3e48c744951301
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1649739
Commit-Queue: Martin Robinson <mrobinson@igalia.com>
Reviewed-by: Joanmarie Diggs <jdiggs@igalia.com>
Cr-Commit-Position: refs/heads/master@{#667538}
27 files changed