chrome/services/noop/manifest.json

{
  "name": "noop",
  "display_name": "No-op Service",
  "sandbox_type": "network",
  "options" : {
    "instance_sharing" : "shared_instance_across_users"
  },
  "interface_provider_specs": {
    "service_manager:connector": {
      "provides": {
        "noop": [
          "chrome.mojom.Noop"
        ]
      }
    }
  }
}