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

{
  "name": "window.open test - spanning",
  "version": "1",
  "manifest_version": 2,
  "permissions": ["tabs"],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": ["background.js"]
  }
}