[auto] Update FlagExpectations for LayoutNG

Following bot results are included.
8499 8501 8504 8506 8507 8511 8515 8519 8523 8526 8533 8536
8539 8543 8547

10 lines were removed and 7 lines were deflaked by consecutive
results since 8506.

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

Bug: 591099
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: I9e5b22037f39e7eeaedd9c46f1704f18604f553d
Reviewed-on: https://chromium-review.googlesource.com/1155280
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579910}
1 file changed