OobeInteractiveUITest: move local code to anonymous namespace.

This Cl moves test-local code to anonymous namespace to prevent link erros.

Bug: 891277
Change-Id: I47c5f41b2c9d77300b389d06bcabf38c981548a2
Reviewed-on: https://chromium-review.googlesource.com/c/1367110
Reviewed-by: Wenzhao (Colin) Zang <wzang@chromium.org>
Commit-Queue: Alexander Alekseev <alemate@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614599}
1 file changed