Allow disk read when dealing with ARCore install

This is a low-frequency check that needs disk
access.

Change-Id: I0b6448b401c9c0176a98e7eff8c3f46d9956790f
Reviewed-on: https://chromium-review.googlesource.com/c/1298743
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603709}
1 file changed