services/ws/test_ws/manifest.json

{
  "name": "test_ws",
  "sandbox_type": "none",
  "display_name": "Test Window Service",
  "interface_provider_specs": {
    "service_manager:connector": {
      "provides": {
        "service_manager:service_factory": [
          "service_manager.mojom.ServiceFactory"
        ],
        "test": [
          "test_ws.mojom.TestWs"
        ]
      }
    }
  }
}