Reland "[LayoutNG] Change some tests to standard mode"

This is a reland of 9a33e7f8687aaf54ddf33689ce7974bca1e7d8b2

Mac Retina bots were down when rebaselined last time, and
they started failing when back.

Original change's description:
> [LayoutNG] Change some tests to standard mode
>
> This patch changes some tests to standard mode.
>
> They currently fail in LayoutNG, probably due to quirks mode.
> Change them to standard mode to see if they still fail.
>
> TBR=eae@chromium.org
>
> Bug: 591099
> Change-Id: Ia41cbc42eb1a114a24c4a13411080ee7fae9cf2e
> Reviewed-on: https://chromium-review.googlesource.com/1142048
> Reviewed-by: Koji Ishii <kojii@chromium.org>
> Commit-Queue: Koji Ishii <kojii@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#576330}

Bug: 591099
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: I46035e14c9a147e3ff1524d867d5e5d97833e7f0
Reviewed-on: https://chromium-review.googlesource.com/1149720
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Cr-Commit-Position: refs/heads/master@{#578009}
29 files changed