Auto-rebaseline for r178873

http://src.chromium.org/viewvc/blink?view=revision&revision=178873

BUG=108833,178745,248065
TBR=pkasting@chromium.org

Review URL: https://codereview.chromium.org/420613007

git-svn-id: svn://svn.chromium.org/blink/trunk@178983 bbb929c8-8fbe-4397-9dbb-9b2b20218538