Auto-rebaseline for r177767

http://src.chromium.org/viewvc/blink?view=revision&revision=177767

BUG=387398
TBR=enne@chromium.org

Review URL: https://codereview.chromium.org/383573002

git-svn-id: svn://svn.chromium.org/blink/trunk@177784 bbb929c8-8fbe-4397-9dbb-9b2b20218538