[LayoutNG] Rebaseline test correctly

This test's baseline was incorrect. Child's writing mode is influencing
its offset inside parent. IE matches NG rendering.

Bug: 740993
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: I779db404ca3e4c8960a95e09beaa854294260dca
Reviewed-on: https://chromium-review.googlesource.com/1121247
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#571768}
4 files changed