[LayoutNG] Rebaseline flag-specific for media/video-display-toggle

The two new failures that appear recently:
  media/video-display-toggle.html
  virtual/video-surface-layer/media/video-display-toggle.html
were from r597673. This patch rebaselines flag-specific
baselines for LayoutNG.

TBR=eae@chromium.org, mstensho@chromium.org
NOTRY=true

Bug: 591099
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: I793b65a9279e62f86d1cc50f947ee91fd23f8e4c
Reviewed-on: https://chromium-review.googlesource.com/c/1270419
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#597825}
3 files changed