Mark fast/repaint/block-layout-inline-children-replaced.html as failing on Mac Retina

BUG=362050
TBR=leviw@chromium.org

Review URL: https://codereview.chromium.org/233113002

git-svn-id: svn://svn.chromium.org/blink/trunk@171269 bbb929c8-8fbe-4397-9dbb-9b2b20218538