chromium/chrome/test/data/extensions/api_test/context_menus/item_ids/manifest.json

{
  "name": "chrome.contextMenus ids",
  "version": "0.1",
  "manifest_version": 2,
  "description": "test for string and integer ID forms",
  "background": {
    "scripts": ["test.js"],
    "persistent": true
  },
  "permissions": ["contextMenus"]
}