Enforce maximum domain name length in DNS response parser

Bug: 811618
Change-Id: I57dc54e56e3a857f05b34dffdefcec634719e0d6
Reviewed-on: https://chromium-review.googlesource.com/c/1369638
Reviewed-by: Eric Orth <ericorth@chromium.org>
Commit-Queue: Daniel McArdle <dmcardle@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616771}
3 files changed