chromium/chrome/test/data/banners/manifest_with_id.json

{
  "name": "Manifest test app with id specified",
  "id": "some_id",
  "icons": [
    {
      "src": "launcher-icon-1x.png",
      "sizes": "48x48",
      "type": "image/png"
    },
    {
      "src": "launcher-icon-1-5x.png",
      "sizes": "72x72",
      "type": "image/png"
    },
    {
      "src": "launcher-icon-2x.png",
      "sizes": "96x96",
      "type": "image/png",
      "purpose": "any monochrome"
    },
    {
      "src": "launcher-icon-3x.png",
      "sizes": "144x144",
      "type": "image/png"
    },
    {
      "src": "launcher-icon-4x.png",
      "sizes": "192x192",
      "type": "image/png"
    },
    {
      "src": "image-512px.png",
      "sizes": "512x512",
      "type": "image/png"
    }
  ],
  "start_url": "start",
  "display": "fullscreen"
}