GitLab

This removes the last use of BrowserDistribution in ShellUtil.

BUG=879568

Change-Id: Ib6ec1ab03913f16f17495ce67f603c7f1eb7ba1a
Reviewed-on: https://chromium-review.googlesource.com/1215282Reviewed-by: Owen Min <zmin@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589947}