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

net/quic/quic_in_memory_cache.h

 // Copyright 2014 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_QUIC_QUIC_IN_MEMORY_CACHE_H_
 #define NET_QUIC_QUIC_IN_MEMORY_CACHE_H_
 
 #include <string>
 
 #include "base/containers/hash_tables.h"
@@ skipping 50 matching lines @@
     scoped_refptr<HttpResponseHeaders> headers_;
     std::string body_;
 
     DISALLOW_COPY_AND_ASSIGN(Response);
   };
 
   // Returns the singleton instance of the cache.
   static QuicInMemoryCache* GetInstance();
 
   // Retrieve a response from this cache for a given request.
-  // If no appropriate response exists, NULL is returned.
+  // If no appropriate response exists, nullptr is returned.
   // Currently, responses are selected based on request URI only.
   const Response* GetResponse(const GURL& url) const;
 
   // Adds a simple response to the cache.  The response headers will
   // only contain the "content-length" header with the length of |body|.
   void AddSimpleResponse(base::StringPiece path,
                          base::StringPiece version,
                          base::StringPiece response_code,
                          base::StringPiece response_detail,
                          base::StringPiece body);
@@ skipping 23 matching lines @@
 
   // Cached responses.
   ResponseMap responses_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicInMemoryCache);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_IN_MEMORY_CACHE_H_