chromium/chrome/test/data/extensions/api_test/lazy_background_page/event_cleanup/manifest.json

{
  "name": "Event cleanup",
  "description": "Check that events are cleaned up on event page tear down",
  "manifest_version": 2,
  "version": "0.1",
  "background": {
    "persistent": false,
    "scripts": ["background.js"]
  }
}