Chrome OS 64 beta allows Android apps to run in the background
https://arstechnica.com/gadgets/2017/12/chrome-os-64-beta-allows-android-apps-to-run-in-the-background/
Smoothly running Android apps on Chrome OS has been a work in progress for years now. Google has done a lot to improve the experience of running mobile apps on its browser-based operating system, and it appears a forthcoming software update could fix one of the remaining problems. A report by Chrome Unboxed details a new feature in Chrome 64 beta called Android Parallel Tasks that lets Android apps run continuously in the background even when you're actively using another program.