chromium/chrome/test/data/extensions/manifest_tests/filebrowser_missing_permission.json

{
  "name": "test",
  "manifest_version": 2,
  "version": "1",
  "file_browser_handlers": [
    {
      "id": "test",
      "default_title" : "Test",
      "default_icon" : "icon.png",
      "file_filters" : [
        "filesystem:*.txt"
      ]
    }
  ]
}