Returning scoped_ptr<> instead of raw pointer in DnsQuery::CloneWithNewId

net/dns/dns_query.h

 // Copyright (c) 2011 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_DNS_DNS_QUERY_H_
 #define NET_DNS_DNS_QUERY_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_piece.h"
 #include "net/base/net_export.h"
 
 namespace net {
 
 class IOBufferWithSize;
 
 // Represents on-the-wire DNS query message as an object.
 // TODO(szym): add support for the OPT pseudo-RR (EDNS0/DNSSEC).
 class NET_EXPORT_PRIVATE DnsQuery {
  public:
   // Constructs a query message from |qname| which *MUST* be in a valid
   // DNS name format, and |qtype|. The qclass is set to IN.
   DnsQuery(uint16 id, const base::StringPiece& qname, uint16 qtype);
   ~DnsQuery();
 
   // Clones |this| verbatim, with ID field of the header set to |id|.
-  DnsQuery* CloneWithNewId(uint16 id) const;
+  scoped_ptr<DnsQuery> CloneWithNewId(uint16 id) const;
 
   // DnsQuery field accessors.
   uint16 id() const;
   base::StringPiece qname() const;
   uint16 qtype() const;
 
   // Returns the Question section of the query.  Used when matching the
   // response.
   base::StringPiece question() const;
 
@@ skipping 11 matching lines @@
 
   // Contains query bytes to be consumed by higher level Write() call.
   scoped_refptr<IOBufferWithSize> io_buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(DnsQuery);
 };
 
 }  // namespace net
 
 #endif  // NET_DNS_DNS_QUERY_H_