Auto-rebaseline for r173788

http://src.chromium.org/viewvc/blink?view=revision&revision=173788

BUG=361729
TBR=danakj@chromium.org

Review URL: https://codereview.chromium.org/271373002

git-svn-id: svn://svn.chromium.org/blink/trunk@173818 bbb929c8-8fbe-4397-9dbb-9b2b20218538