chromium/chrome/test/data/extensions/api_test/active_tab/manifest.json

{
  "name": "activeTab",
  "description": "API test for activeTab",
  "version": "0.1",

  "browser_action": {
    "default_title": "activeTab"
  },

  "permissions": [
    "activeTab",
    "webNavigation"
  ],

  "background": {
    "scripts": ["background.js"]
  },

  "manifest_version": 2,

  "web_accessible_resources": [ "iframe.html" ]
}