Auto-rebaseline for r171408

http://src.chromium.org/viewvc/blink?view=revision&revision=171408

BUG=352018
TBR=jinho.bang@samsung.com

Review URL: https://codereview.chromium.org/237353002

git-svn-id: svn://svn.chromium.org/blink/trunk@171492 bbb929c8-8fbe-4397-9dbb-9b2b20218538