chromeos/services/device_sync/manifest.json

{
  "name": "device_sync",
  "display_name": "DeviceSync Service",
  "interface_provider_specs": {
    "service_manager:connector": {
      "provides": {
        "device_sync": [ "chromeos.device_sync.mojom.DeviceSync" ]
      },
      "requires": {
        "preferences": [ "pref_client" ]
      }
    }
  }
}