Auto-rebaseline for r177697

http://src.chromium.org/viewvc/blink?view=revision&revision=177697

BUG=391036
TBR=chrishtr@chromium.org

Review URL: https://codereview.chromium.org/374243002

git-svn-id: svn://svn.chromium.org/blink/trunk@177701 bbb929c8-8fbe-4397-9dbb-9b2b20218538