Make transport_params in SessionCache a const reference, because it should always be present.

gfe-relnote: unused code, not protected.
PiperOrigin-RevId: 307943004
Change-Id: I692867a8cfc624f09a607cba297f9df7158ff1a9
diff --git a/quic/core/tls_client_handshaker.cc b/quic/core/tls_client_handshaker.cc
index f16fdd5..3770ebd 100644
--- a/quic/core/tls_client_handshaker.cc
+++ b/quic/core/tls_client_handshaker.cc
@@ -520,7 +520,7 @@
     return;
   }
   session_cache_->Insert(server_id_, std::move(session),
-                         received_transport_params_.get(),
+                         *received_transport_params_,
                          received_application_state_.get());
 }
 
@@ -544,11 +544,11 @@
     if (cached_tls_sessions_[1] != nullptr) {
       // Insert the older session first.
       session_cache_->Insert(server_id_, std::move(cached_tls_sessions_[1]),
-                             received_transport_params_.get(),
+                             *received_transport_params_,
                              received_application_state_.get());
     }
     session_cache_->Insert(server_id_, std::move(cached_tls_sessions_[0]),
-                           received_transport_params_.get(),
+                           *received_transport_params_,
                            received_application_state_.get());
   }
 }