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- Turns on UAv2 by default,
- copies test expectations from the virtual to main
  test suite, and
- changes few test expectations.

Intent to Ship discussion: https://groups.google.com/a/chromium.org/d/msg/blink-dev/nkTDR8AUlwM/xsPcojA5BAAJ

Bug: 904991
Change-Id: I213b5a723ffe08b859170ae8dfb539eee84ffaf3
Reviewed-on: https://chromium-review.googlesource.com/c/796938Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Commit-Queue: Mustaq Ahmed <mustaq@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611220}