migrate AIA tests from SpawnedTestServer to EmbeddedTestServer

Bug: 846909, 1045732
Change-Id: Ia7a8251effb8bb27c52b378bbc91c301ace1fb28
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2042437
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Reviewed-by: Ryan Sleevi <rsleevi@chromium.org>
Auto-Submit: Matt Mueller <mattm@chromium.org>
Commit-Queue: Matt Mueller <mattm@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#742370}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 9024068b99d3df64bcf2631cd58f4274450725d9
1 file changed