[LayoutNG] Update FlagExpectations for LayoutNG

Following bot results are included.
2029 2033 2034 2037 2039 2047 2057 2061 2064

19 lines were removed by consecutive passes since 2012.

The following test sometimes pass in LayoutNG but we can't mark
it to pass when it has failing expectations. The expectation was
removed and marked as failure in TestExpectations instead.

- external/wpt/css/css-flexbox/percentage-heights-003.html

TBR=eae@chromium.org
NOTRY=true

Bug: 591099
Change-Id: Ie6f035e28669ba61915e8783b807e8a6adb74276
Reviewed-on: https://chromium-review.googlesource.com/760040
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#515131}
3 files changed