GitLab

Also, fix the plumbing of |rp_id| out of FidoRequestHandlers into
TransportAvailabilityInfo, and add unittests to verify correctness.

Bug: 866601, 849323
Change-Id: I0e8c1250208c52306501fab7b9c55a2b1a34bbd1
Reviewed-on: https://chromium-review.googlesource.com/1181265
Commit-Queue: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Jun Choi <hongjunchoi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584526}