chromium/chrome/test/data/extensions/content_verifier/storage_permission/manifest.json

{
  "name": "Storage permission - Background script",
  "version": "1.0",
  "manifest_version": 2,
  "permissions": ["storage"],
  "background": {"scripts": ["background.js"]},
  "update_url": "https://clients2.google.com/service/update2/crx"
}