chromium/chrome/test/data/extensions/api_test/tabs/basics/discarded/manifest.json

{
  "name": "chrome.tabs",
  "version": "0.1",
  "manifest_version": 2,
  "description": "end-to-end browser test for chrome.tabs API",
  "permissions": ["tabs"],
  "background": {
    "scripts": ["discarded.js"],
    "persistent": true
  }
}