chromium/chrome/test/data/extensions/api_test/executescript/frame_after_load/manifest.json

{
  "version": "1.0.0.0",
  "manifest_version": 2,
  "name": "executeScript after frame has loaded test",
  "description": "Test extension API: executeScript after frame has loaded",
  "background": {
    "scripts": ["test.js"],
    "persistent": true
  },
  "permissions": ["tabs", "http://a.com/"]
}