I have a Chrome Packaged App which I wish to deploy and use in a Chrome OS Public Session Kiosk (Not Single App Kiosk).
From here: https://support.google.com/chrome/a/answer/3017014?hl=en
Public Session Kiosk apps
All hosted Chrome apps and some packaged apps are supported as kiosk apps. Here are some popular Public Session
How do I configure my Chrome packaged app to work in a Public Session Kiosk?
I Spoke to a Sr Deployment Mgr for Chrome OS @ Google, he told me:
Only whitelisted packaged apps are supported in public sessions. In order to be whitelisted Google must review your app for security.