There’s some confusion here. Google is working on a technology called Native Client (NaCl), which allows native code to work secure in the browser. We are working on making Unity’s plugin work via this NaCl thing. So it’s not that “google is going to integrate Unity into Chrome”, but more like “Google is working on a technology that will enable Unity’s NaCl version to work in the browser without installing a plugin”. There’s still some work to do both on our’s and Google’s side to make this really happen.