Replace va_arg version of crypto_test_utils::Message with a more modern vector argument version.

net/tools/quic/quic_dispatcher_test.cc

Index: net/tools/quic/quic_dispatcher_test.cc
diff --git a/net/tools/quic/quic_dispatcher_test.cc b/net/tools/quic/quic_dispatcher_test.cc
index e58953f938f773fba45bd4450f31d4a01ded0126..257ad139b3da09507ae077509485e321008cb538 100644
--- a/net/tools/quic/quic_dispatcher_test.cc
+++ b/net/tools/quic/quic_dispatcher_test.cc
@@ -819,17 +819,13 @@ TEST_P(QuicDispatcherStatelessRejectTest, CheapRejects) {
   QUIC_LOG(INFO) << "ExpectStatelessReject: " << ExpectStatelessReject();
   QUIC_LOG(INFO) << "Params: " << GetParam();
   // Process the first packet for the connection.
-  // clang-format off
-  CryptoHandshakeMessage client_hello = crypto_test_utils::Message(
-      "CHLO",
-      "AEAD", "AESG",
-      "KEXS", "C255",
-      "COPT", "SREJ",
-      "NONC", "1234567890123456789012",
-      "VER\0", "Q025",
-      "$padding", static_cast<int>(kClientHelloMinimumSize),
-      nullptr);
-  // clang-format on
+  CryptoHandshakeMessage client_hello =
+      crypto_test_utils::CreateCHLO({{"AEAD", "AESG"},
+                                     {"KEXS", "C255"},
+                                     {"COPT", "SREJ"},
+                                     {"NONC", "1234567890123456789012"},
+                                     {"VER\0", "Q025"}},
+                                    kClientHelloMinimumSize);
 
   ProcessPacket(client_address, connection_id, true, false,
                 client_hello.GetSerialized().AsStringPiece().as_string());
@@ -851,16 +847,12 @@ TEST_P(QuicDispatcherStatelessRejectTest, BufferNonChlo) {
                   "NOT DATA FOR A CHLO");
 
   // Process the first packet for the connection.
-  // clang-format off
-  CryptoHandshakeMessage client_hello = crypto_test_utils::Message(
-      "CHLO",
-      "AEAD", "AESG",
-      "KEXS", "C255",
-      "NONC", "1234567890123456789012",
-      "VER\0", "Q025",
-      "$padding", static_cast<int>(kClientHelloMinimumSize),
-      nullptr);
-    // clang-format on
+    CryptoHandshakeMessage client_hello =
+        crypto_test_utils::CreateCHLO({{"AEAD", "AESG"},
+                                       {"KEXS", "C255"},
+                                       {"NONC", "1234567890123456789012"},
+                                       {"VER\0", "Q025"}},
+                                      kClientHelloMinimumSize);
 
     // If stateless rejects are enabled then a connection will be created now
     // and the buffered packet will be processed