Google is just like any other publication. It should not perpetuate a revealed damage, at least once it has been notified. Since it is based in the USA, it must follow US law, which includes very similar protections against damages (theft of intellectual property for example, or slander, for another) that Canada has, since both share common law heritage, and  criminal laws overlap to a great degree.

I don't think Google has much of a leg to stand on here.