chromium/chrome/test/data/extensions/api_test/executescript/navigation_race/manifest.json

{
  "name": "Navigation race",
  "version": "1",
  "manifest_version": 2,
  "background": {
    "scripts": ["test.js"],
    "persistent": true
  },
  "permissions": [
    "tabs",
    "http://b.com/"
  ]
}