I need to have a chrome app quit based on a js script, but after I've looked through Google's list of JS APIs for Chrome Apps, I'm not convinced there is a way sadly. I've tried having the program throw errors at itself, but chrome simply ignores them and moves on. By the way, this is for Chrome OS.
Perhaps the simplest hack to make a chrome app "quit" would be to set chrome.storage.local.set({dont_start:1}) and then chrome.runtime.reload() and make sure the onLaunched event listener, instead of doing the normal thing like opening an app window, instead checks first if dont_start is set, and deletes that key, and just does nothing (instead of launching the app). Then in about 30 seconds or so the event page will go inactive.