chromium/chrome/test/data/extensions/web_request_site_process_registration/manifest.json

{
  "name": "webRequest Blocking",
  "version": "1.0",
  "manifest_version": 2,
  "description": "Tests navigation to a page blocked by webRequest API.",
  "permissions": ["webRequest", "webRequestBlocking", "<all_urls>"],
  "web_accessible_resources": [ "blocked.html" ]
}