Auto-rebaseline for r178893

http://src.chromium.org/viewvc/blink?view=revision&revision=178893

BUG=331119
TBR=eae@chromium.org

Review URL: https://codereview.chromium.org/425463002

git-svn-id: svn://svn.chromium.org/blink/trunk@178969 bbb929c8-8fbe-4397-9dbb-9b2b20218538