std::move(optimization_pass));
      pass_result_expected_[pass_state][pass_run_result.ok()]++;
    }
    flib_ = std::make_unique<FunctionLibraryDefinition>(graph_->flib_def());
    InitGraphOptions();
  }

  void verifyGraph(const GraphDef& original_graph_def, bool changed = false) {
// Proto matchers might be unavailable in the OSS.
#if defined(PLATFORM_GOOGLE)
    GraphDef resulted_graph_def;