chromium/chrome/test/data/extensions/activity_log_app/manifest.json

{
  "name": "Activity Log Test APP",
  "manifest_version": 2,
  "description": "Used to test Activity Log with an app",
  "version": "0.1",
  "app": {
    "background": {
      "scripts": ["background.js"]
    }
  },
  "bluetooth": {}
}