Allow request in StaleHostResolver to return stale result immediately when paramaters explicitly specifies.

BUG=943691

Change-Id: I0d47b0af7991c12dbbbd172e4009f2260c624008
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1529874
Reviewed-by: Paul Jensen <pauljensen@chromium.org>
Reviewed-by: Eric Orth <ericorth@chromium.org>
Commit-Queue: Renjie Tang <renjietang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#643360}
3 files changed