chromium/chrome/test/data/extensions/api_test/window_open/close_panels_on_uninstall/manifest.json

{
  "name": "Extension app for test non-extension panels close on Uninstall.",
  "version": "1",
  "manifest_version": 2,
  "description": "When an extension is uninstalled all panels opened by the extension should be closed.",
  "background": {
    "scripts": ["background.js"]
  },
  "permissions": ["tabs"]
}