Convert class-full-of-statics CryptoTestUtils into a namespace

net/quic/test_tools/crypto_test_utils_test.cc

Index: net/quic/test_tools/crypto_test_utils_test.cc
diff --git a/net/quic/test_tools/crypto_test_utils_test.cc b/net/quic/test_tools/crypto_test_utils_test.cc
index 85069446e418cf2dd2c9f381fed2a4c100239fed..d2b4524ae2e8c481a7780cb00daab372f0e0d377 100644
--- a/net/quic/test_tools/crypto_test_utils_test.cc
+++ b/net/quic/test_tools/crypto_test_utils_test.cc
@@ -112,7 +112,7 @@ TEST(CryptoTestUtilsTest, TestGenerateFullCHLO) {
   MockClock clock;
   QuicCryptoServerConfig crypto_config(
       QuicCryptoServerConfig::TESTING, QuicRandom::GetInstance(),
-      CryptoTestUtils::ProofSourceForTesting());
+      crypto_test_utils::ProofSourceForTesting());
   QuicSocketAddress server_addr;
   QuicSocketAddress client_addr(QuicIpAddress::Loopback4(), 1);
   QuicReferenceCountedPointer<QuicSignedServerConfig> signed_config(
@@ -149,7 +149,7 @@ TEST(CryptoTestUtilsTest, TestGenerateFullCHLO) {
 
   QuicVersion version(AllSupportedVersions().front());
   // clang-format off
-  CryptoHandshakeMessage inchoate_chlo = CryptoTestUtils::Message(
+  CryptoHandshakeMessage inchoate_chlo = crypto_test_utils::Message(
     "CHLO",
     "PDMD", "X509",
     "AEAD", "AESG",
@@ -162,9 +162,9 @@ TEST(CryptoTestUtilsTest, TestGenerateFullCHLO) {
     nullptr);
   // clang-format on
 
-  CryptoTestUtils::GenerateFullCHLO(inchoate_chlo, &crypto_config, server_addr,
-                                    client_addr, version, &clock, signed_config,
-                                    &compressed_certs_cache, &full_chlo);
+  crypto_test_utils::GenerateFullCHLO(
+      inchoate_chlo, &crypto_config, server_addr, client_addr, version, &clock,
+      signed_config, &compressed_certs_cache, &full_chlo);
   // Verify that full_chlo can pass crypto_config's verification.
   ShloVerifier shlo_verifier(&crypto_config, server_addr, client_addr, &clock,
                              signed_config, &compressed_certs_cache);