As a company they surely do not care if something is Google specific or not. They only care if they can sell enough licenses for it to make the development costs make sense. In light of chrome's adoption curve it seems to be a not terrible idea to target nacl.
Or they could just target WebGL and asm.js, which already works in Chrome, and let's see how long Google sits around with Chrome being slower at a popular use case.
Exactly, and it was also driven by the fact that it was easy for the Unity guys to get their existing toolchain building on NaCls LLVM toolchain. Now with ASM.js maturing, its another great opportunity.
Also we saw Unity developed a target for the Flash runtime (now with Flash pretty much dead, thats being shelved). Gotta give props to Unity for trying.
