Auto-rebaseline for r157791

http://src.chromium.org/viewvc/blink?view=revision&revision=157791

BUG=229910
TBR=senorblanco@chromium.org

Review URL: https://codereview.chromium.org/23819063

git-svn-id: svn://svn.chromium.org/blink/trunk@157797 bbb929c8-8fbe-4397-9dbb-9b2b20218538