Mark fast/forms/autofilled.html for rebaselining on windows.

TBR=ager@chromium.org
NOTRY=true
BUG=417235

Review URL: https://codereview.chromium.org/602623002

git-svn-id: svn://svn.chromium.org/blink/trunk@182594 bbb929c8-8fbe-4397-9dbb-9b2b20218538