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

net/tools/quic/test_tools/quic_test_client.h

 // 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.
 
 #ifndef NET_TOOLS_QUIC_TEST_TOOLS_QUIC_TEST_CLIENT_H_
 #define NET_TOOLS_QUIC_TEST_TOOLS_QUIC_TEST_CLIENT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 120 matching lines @@
   // From QuicDataStream::Visitor
   virtual void OnClose(QuicDataStream* stream) OVERRIDE;
 
   // Configures client_ to take ownership of and use the writer.
   // Must be called before initial connect.
   void UseWriter(QuicPacketWriterWrapper* writer);
   // If the given ConnectionId is nonzero, configures client_ to use a specific
   // ConnectionId instead of a random one.
   void UseConnectionId(QuicConnectionId connection_id);
 
-  // Returns NULL if the maximum number of streams have already been created.
+  // Returns nullptr if the maximum number of streams have already been created.
   QuicSpdyClientStream* GetOrCreateStream();
 
   QuicRstStreamErrorCode stream_error() { return stream_error_; }
   QuicErrorCode connection_error();
 
   MockableQuicClient* client();
 
   // cert_common_name returns the common name value of the server's certificate,
   // or the empty string if no certificate was presented.
   const string& cert_common_name() const;
@@ skipping 55 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(QuicTestClient);
 };
 
 }  // namespace test
 
 }  // namespace tools
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_TEST_TOOLS_QUIC_TEST_CLIENT_H_