GitLab

Essentially a copy of the HttpAuthHandlerDigestFuzzer with a bit of
extra logic to exercise the retrieval of specific scheme factories and
then remove the bit of input massaging to make it specific to digest.

Fixed: 599584
Change-Id: Iceb4d9985b02e0d6de7edd7de3059a90a7050ba7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2349980
Commit-Queue: Eric Orth <ericorth@chromium.org>
Auto-Submit: Eric Orth <ericorth@chromium.org>
Reviewed-by: Eric Roman <eroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#797828}