chromium/chrome/test/data/extensions/api_test/echo/component_extension/manifest.json

{
  // chrome-extension://lbgjohhgghbkcgejgklgcmfijhbheflf/
  "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDasz2sLsAlmcF0v7/FGwzWVP/T+CLhvWpojKckVp8RH0bN/x3HvQ8FUweTymsaLbqxMHn8LbMOYt9uvLg7MuUcs0puzo7vPEwW7FPwLdIke2Fth+uXgkBFUFvtrOoAyIXmiRRFoIi9qfNVQOvIz0nv0c7UEKoHT3UnT0ekxSl7lwIDAQAB",
  "name": "chrome.echoPrivate.apitest",
  "version": "0.1",
  "description": "tests for chrome.echoPrivate API.",
  "manifest_version": 2,
  "background": {"scripts": ["test.js"]},
  "permissions": ["echoPrivate"]
}