chrome/test/base/mash_browser_tests_manifest.json

{
  "name": "mash_browser_tests",
  "display_name": "Mash Browser Tests",
  "interface_provider_specs": {
    "service_manager:connector": {
      "provides": {
        "service_manager:service_factory": [
          "service_manager::mojom::ServiceFactory"
        ]
      },
      "requires": {
        "*": [ "app" ],
        "service_manager": [
           "service_manager:instance_per_child"
        ]
      }
    }
  }
}