chromium/chrome/test/data/printing/test_extension/manifest.json

{
  "name": "Test Printer Provider Extension",
  "description" : "Base Level Extension",
  "version": "1.0",
  "manifest_version": 2,
  "browser_action": {
    "default_popup": "test_extension.html"
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "permissions": ["printerProvider"],
  "background": {
    "scripts": ["background.js"]
  }
}