GitLab

Mark dcheck-is-fatal as a special never-expiring flag, since it is used
with special DCHECK-enabled builds to explicitly opt-in (or out) of
crashing when a check fails.

Bug: 901515
Change-Id: I153082352eaaa048db9d4070f802b4ce1ab8c38a
Reviewed-on: https://chromium-review.googlesource.com/c/1351732Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611464}