chromium/chrome/test/data/extensions/kiosk/kiosk_only/manifest.json

{
  "name": "Kiosk Only Test",
  "manifest_version": 2,
  "description": "Test for 'kiosk_only' manifest attribute",
  "version": "1",
  "app": {
    "background": {
      "scripts": ["background.js"]
    }
  },
  "kiosk_enabled": true,
  "kiosk_only": true
}