Unreviewed win7 DirectWrite rebaselines

TBR=dglazkov@chromium.org
BUG=378610

Review URL: https://codereview.chromium.org/313903002

git-svn-id: svn://svn.chromium.org/blink/trunk@175494 bbb929c8-8fbe-4397-9dbb-9b2b20218538