GitLab

When a boolean policy has a undefined value in the 'items' attributions,
the error message uses undefined variables and causes crash.

Bug: 1165816
Change-Id: I4600d0d8ba51472e8d69035c368f462a7f645b0f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2629430
Commit-Queue: Owen Min <zmin@chromium.org>
Commit-Queue: Julian Pastarmov <pastarmovj@chromium.org>
Auto-Submit: Owen Min <zmin@chromium.org>
Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843643}