[LayoutNG] Rebaseline for new image rendering differences

Also, rebaseline tests where NG results look good.

Bug: 635619
Change-Id: I9f6bd08888bcc505bc5742f5e4bf42c09873372b
Reviewed-on: https://chromium-review.googlesource.com/c/1361701
Reviewed-by: Emil A Eklund <eae@chromium.org>
Commit-Queue: Aleks Totic <atotic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#613675}
11 files changed