Rollforward: Don't make autosizing containers for empty nodes.

This reverts https://src.chromium.org/viewvc/blink?view=revision&revision=163560.

BUG=

Review URL: https://codereview.chromium.org/99863005

git-svn-id: svn://svn.chromium.org/blink/trunk@163672 bbb929c8-8fbe-4397-9dbb-9b2b20218538