chromium/chrome/test/data/extensions/activity_log/execute_script_ad_injection/manifest.json

{
  "name": "Ad-Injecting Extension",
  "description": "An extension which pretends to inject ads into a page.",
  "manifest_version": 2,
  "version": "2.0",
  "permissions": [
    "tabs", "*://*/*"
  ],
  "background": {
    "scripts": ["background.js"]
  }
}