chromium/chrome/test/data/extensions/api_test/file_browser/permissions/manifest.json

{
  "name": "chrome.fileManagerPrivate permission test",
  "version": "0.1",
  "manifest_version": 2,
  "description": "Tests if chrome.fileManagerPrivate is not available to non-whitelisted apps.",
  "app": {  
    "background": {
      "scripts": ["background.js"]
    }
  },
  "permissions": [
    "fileManagerPrivate"
  ]
}