Rebaseline a virtual PiP test and unskip it

TBR=foolip

Bug: 866802
Change-Id: I633708217593c5b132beb69eeb27f7e6caeeedc0
Reviewed-on: https://chromium-review.googlesource.com/1150632
Reviewed-by: Robert Ma <robertma@chromium.org>
Commit-Queue: Robert Ma <robertma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#578084}
2 files changed