Auto-rebaseline for r177698

http://src.chromium.org/viewvc/blink?view=revision&revision=177698

BUG=388823
TBR=eae@chromium.org

Review URL: https://codereview.chromium.org/379103002

git-svn-id: svn://svn.chromium.org/blink/trunk@177722 bbb929c8-8fbe-4397-9dbb-9b2b20218538