chromium/chrome/test/data/extensions/api_test/runtime/content_script/manifest.json

{
  "name": "API test for the runtime API in content scripts",
  "version": "1",
  "manifest_version": 2,
  "background": {
    "scripts": ["test.js"],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": ["*://*/title1.html"],
      "js": ["content_script.js"]
    }
  ]
}