Contrary to the opinions of the fundie-nuts, the ACLU has consistently supported the rights of Christians to practice within the law. The ACLU, in just one example, went to court to get a ban on Christians praying on a public park lifted.
I just don't see them passing it - I would guess at least the UK and Scandanavian countries will not agree to it.
I would have thought the French and the Germans were most likely to refuse - they having legal church/state seperation and all whereas as we (the UK) have legal church/state union (for example, our head of state is also the head of the Church of England).