Auto-rebaseline for r171958

http://src.chromium.org/viewvc/blink?view=revision&revision=171958

BUG=308992
TBR=davve@opera.com

Review URL: https://codereview.chromium.org/243793003

git-svn-id: svn://svn.chromium.org/blink/trunk@171981 bbb929c8-8fbe-4397-9dbb-9b2b20218538