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

net/tools/quic/end_to_end_test.cc

Index: net/tools/quic/end_to_end_test.cc
diff --git a/net/tools/quic/end_to_end_test.cc b/net/tools/quic/end_to_end_test.cc
index 93e499d975495568f7f473953f3cb1c58031dceb..31cf5f0210b0c838370639953c39ce19b049584b 100644
--- a/net/tools/quic/end_to_end_test.cc
+++ b/net/tools/quic/end_to_end_test.cc
@@ -318,9 +318,10 @@ class EndToEndTest : public ::testing::TestWithParam<TestParams> {
   }
 
   QuicTestClient* CreateQuicClient(QuicPacketWriterWrapper* writer) {
-    QuicTestClient* client = new QuicTestClient(
-        server_address_, server_hostname_, client_config_,
-        client_supported_versions_, CryptoTestUtils::ProofVerifierForTesting());
+    QuicTestClient* client =
+        new QuicTestClient(server_address_, server_hostname_, client_config_,
+                           client_supported_versions_,
+                           crypto_test_utils::ProofVerifierForTesting());
     client->UseWriter(writer);
     client->Connect();
     return client;
@@ -439,7 +440,7 @@ class EndToEndTest : public ::testing::TestWithParam<TestParams> {
         GetParam().use_cheap_stateless_reject;
 
     auto test_server = new QuicTestServer(
-        CryptoTestUtils::ProofSourceForTesting(), server_config_,
+        crypto_test_utils::ProofSourceForTesting(), server_config_,
         server_supported_versions_, &response_cache_);
     server_thread_.reset(new ServerThread(test_server, server_address_));
     if (chlo_multiplier_ != 0) {