Rebaseline antialiasedtext/ tests after skia roll.

BUG=None
TBR=hclam@chromium.org

Review URL: https://codereview.chromium.org/509073007

git-svn-id: svn://svn.chromium.org/blink/trunk@181046 bbb929c8-8fbe-4397-9dbb-9b2b20218538