They just hired Ray. They'd have to be moderately transhumanist positive to do that.
There could be other explanations - like trying to buy the goodwill of people inclined towards Kurzweilian Transhumanism.
Also, Transhumanism aside, he's an extremely accomplished engineer.
It makes a lot of sense for the Google people to be transhumanist, with Sergey Brin and Larry Page working with the Singularity University, but still I was surprised to hear this on the new Colbert Report (of the 23rd of April):
He seemed quite serious, too.
I guess a lot of people would take transhumanism more seriously if they heard the top people at Google are in. To me, I actually find it makes Google seem more trustworthy. In-group psychology is weird.
Here's another good interview with Eric Schmidt. No explicit transhumanism, but some fairly intense plans entirely compatible with it.
(edited: corrected title)