Auto-rebaseline for r166371

http://src.chromium.org/viewvc/blink?view=revision&revision=166371

BUG=338674
TBR=leviw@chromium.org

Review URL: https://codereview.chromium.org/129863007

git-svn-id: svn://svn.chromium.org/blink/trunk@166399 bbb929c8-8fbe-4397-9dbb-9b2b20218538