Add QUIC handshake accounting. Protected by

net/quic/core/quic_crypto_server_stream_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/core/quic_crypto_server_stream.h"
 
 #include <map>
 #include <memory>
 #include <vector>
 
@@ skipping 315 matching lines @@
   ASSERT_TRUE(client_state->IsComplete(QuicWallTime::FromUNIXSeconds(0)));
 }
 
 TEST_P(QuicCryptoServerStreamTest, ZeroRTT) {
   Initialize();
   InitializeFakeClient(/* supports_stateless_rejects= */ false);
 
   // Do a first handshake in order to prime the client config with the server's
   // information.
   AdvanceHandshakeWithFakeClient();
+  EXPECT_FALSE(server_stream()->ZeroRttAttempted());
 
   // Now do another handshake, hopefully in 0-RTT.
   QUIC_LOG(INFO) << "Resetting for 0-RTT handshake attempt";
   InitializeFakeClient(/* supports_stateless_rejects= */ false);
   InitializeServer();
 
   client_stream()->CryptoConnect();
 
   crypto_test_utils::CommunicateHandshakeMessages(
       client_connection_, client_stream(), server_connection_, server_stream());
 
   EXPECT_EQ(1, client_stream()->num_sent_client_hellos());
+  EXPECT_TRUE(server_stream()->ZeroRttAttempted());
 }
 
 TEST_P(QuicCryptoServerStreamTest, FailByPolicy) {
   Initialize();
   InitializeFakeClient(/* supports_stateless_rejects= */ false);
 
   EXPECT_CALL(*server_session_->helper(), CanAcceptClientHello(_, _, _))
       .WillOnce(testing::Return(false));
   EXPECT_CALL(*server_connection_,
               CloseConnection(QUIC_HANDSHAKE_FAILED, _, _));
@@ skipping 195 matching lines @@
   EXPECT_CALL(
       *server_connection_,
       CloseConnection(QUIC_CRYPTO_MESSAGE_WHILE_VALIDATING_CLIENT_HELLO,
                       "Unexpected handshake message while processing CHLO", _));
   server_stream()->OnHandshakeMessage(chlo);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net