message: Internal fixes for TFStreamz.
diff: @@ -92,6 +92,7 @@ Status NewSession(const SessionOptions& options, Session** out_session) {
  // Starts exporting metrics through a platform-specific monitoring API (if
  // provided). For builds using "tensorflow/core/platform/default", this is
  // currently a no-op.
  + session_created->GetCell()->Set(true);
  monitoring::StartExporter();
  s = factory->NewSession(options, out_session);
  if (!s.ok()) {
  