Revert "Auto-rebaseline for r171923"

Reason for revert:
Depends on https://codereview.chromium.org/203463007/ which broke ChromeOS login
window: https://code.google.com/p/chromium/issues/detail?id=365507

Original change: https://codereview.chromium.org/243333004

TBR=ojan@chromium.org,trchen@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=365507

Review URL: https://codereview.chromium.org/248183002

git-svn-id: svn://svn.chromium.org/blink/trunk@172175 bbb929c8-8fbe-4397-9dbb-9b2b20218538