Auto-rebaseline for r173231

http://src.chromium.org/viewvc/blink?view=revision&revision=173231

BUG=369419
TBR=enne@chromium.org

Review URL: https://codereview.chromium.org/268853002

git-svn-id: svn://svn.chromium.org/blink/trunk@173255 bbb929c8-8fbe-4397-9dbb-9b2b20218538