QUIC - (no behavior change) s/NULL/nullptr/g in .../quic/...

net/tools/quic/quic_client_session_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/tools/quic/quic_client_session.h"
 
 #include <vector>
 
 #include "net/base/ip_endpoint.h"
 #include "net/quic/crypto/aes_128_gcm_12_encrypter.h"
@@ skipping 73 matching lines @@
   stream = session_->CreateOutgoingDataStream();
   EXPECT_TRUE(stream);
 }
 
 TEST_P(ToolsQuicClientSessionTest, GoAwayReceived) {
   CompleteCryptoHandshake();
 
   // After receiving a GoAway, I should no longer be able to create outgoing
   // streams.
   session_->OnGoAway(QuicGoAwayFrame(QUIC_PEER_GOING_AWAY, 1u, "Going away."));
-  EXPECT_EQ(NULL, session_->CreateOutgoingDataStream());
+  EXPECT_EQ(nullptr, session_->CreateOutgoingDataStream());
 }
 
 TEST_P(ToolsQuicClientSessionTest, SetFecProtectionFromConfig) {
   ValueRestore<bool> old_flag(&FLAGS_enable_quic_fec, true);
 
   // Set FEC config in client's connection options.
   QuicTagVector copt;
   copt.push_back(kFHDR);
   session_->config()->SetConnectionOptionsToSend(copt);
 
@@ skipping 39 matching lines @@
   // Close connection shouldn't be called.
   EXPECT_CALL(*connection_, SendConnectionCloseWithDetails(_, _)).Times(0);
   session_->connection()->ProcessUdpPacket(client_address, server_address,
                                            valid_packet);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace tools
 }  // namespace net