[aw] Add proxy override integration tests

Bug: 902215
Change-Id: Ibac9527580253aa924ed8c553bb5f01f47e368aa
Reviewed-on: https://chromium-review.googlesource.com/c/1391561
Reviewed-by: Nate Fischer <ntfschr@chromium.org>
Reviewed-by: Tobias Sargeant <tobiasjs@chromium.org>
Commit-Queue: Laís Minchillo <laisminchillo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623179}
3 files changed