gfe-relnote: Stop using SetDefaultEncryptionLevel in TLS handshake. Instead, use OnOneRttKeysAvailable. Refactor only, no functional change expected, not protected.

PiperOrigin-RevId: 301928754
Change-Id: I8751cb610f1454fc2d61646c50a1fbed8dae926c
diff --git a/quic/core/quic_session_test.cc b/quic/core/quic_session_test.cc
index e3289e9..25237c4 100644
--- a/quic/core/quic_session_test.cc
+++ b/quic/core/quic_session_test.cc
@@ -91,7 +91,12 @@
     }
     EXPECT_THAT(error, IsQuicNoError());
     session()->OnConfigNegotiated();
-    session()->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
+    if (session()->connection()->version().handshake_protocol ==
+        PROTOCOL_TLS1_3) {
+      session()->OnOneRttKeysAvailable();
+    } else {
+      session()->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
+    }
     session()->DiscardOldEncryptionKey(ENCRYPTION_INITIAL);
   }