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

{
  "name": "incoming_native_messaging",
  "version": "1.0",
  "manifest_version": 2,
  "description": "Tests the native messaging when it is initiated by the native application.",
  "background": {
    "persistent": true,
    "scripts": ["background.js"]
  },
  "permissions": ["nativeMessaging"]
}