Auto-rebaseline for r174909

http://src.chromium.org/viewvc/blink?view=revision&revision=174909

BUG=338794
TBR=esprehn@chromium.org

Review URL: https://codereview.chromium.org/300683010

git-svn-id: svn://svn.chromium.org/blink/trunk@174924 bbb929c8-8fbe-4397-9dbb-9b2b20218538