chromium/chrome/test/data/extensions/api_test/sync_file_system/on_file_status_changed/manifest.json

{
  "name": "chrome.syncFileSystem.onFileSynced",
  "version": "0.2",
  "manifest_version": 2,
  "description": "end-to-end browser test to listen to chrome.syncFileSystem.onFileSynced events",
  "permissions": ["syncFileSystem"],
  "app": {
    "background": {
      "scripts": ["test.js"]
    }
  }
}