chrome/test/data/extensions/app_update/v1/manifest.json

{
  "name": "Test App",
  "manifest_version": 2,
  "version": "1",
  "app": {
    "urls": [
      "http://www.example.com/path1"
    ],
    "launch": {
      "web_url": "http://www.example.com/path1/foo.html"
    }
  }
}