Honestly, I think Google should be looking at ditching Chrome and making it into a skin on Android. They've over-fragmented their own market by having so many different platforms.
I guess - I do wonder what the performance of the chrome browser, rendering 'full' sites, might be like on Android compared to ChromeOS. Not that it should be that bad, the processor is a pretty decent dual-core exynos thing, and it has a couple of GB of RAM.
I actually really like ChromeOS. I bought the xe303 to run ubuntu on, but most of the time I end up booting ChromeOS because it turns out that 99% of my casual computing can be achieved in a browser or using the dev shell and ssh.
I'd settle for a Wayland driver running on SurfaceFlinger. run a chroot Linux distro and you can run Android apps and have an 'app' which behaves like a real computer.
I do wonder if the thing that is deterring Google from this path is that ChromeOs is designed to be Cloud and rather than give people what they want they are trying to give people something that would help their business model.
I always thought that they had the two platforms reversed. Chrome OS would make a better phone platform, since the always-online nature of phones is a better fit for an OS that needs to be always online (with the exception of the limited offline-mode of some apps). Whereas a laptop device usage pattern (sometimes-online, sometimes-offline) would fit Android better.