RefCounted types should not have public destructors, net/

net/udp/udp_data_transfer_param.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_UDP_UDP_DATA_TRANSFER_PARAM_H_
 #define NET_UDP_UDP_DATA_TRANSFER_PARAM_H_
 #pragma once
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_log.h"
 
 namespace net {
 
 class IPEndPoint;
 
 // NetLog parameter to describe a UDP receive/send event.  Each event has a
 // byte count, and may optionally have transferred bytes and an IPEndPoint as
 // well.
 class UDPDataTransferNetLogParam : public NetLog::EventParameters {
  public:
   // |bytes| are only logged when |log_bytes| is non-NULL.
   // |address| may be NULL.
-  UDPDataTransferNetLogParam(int byte_count, const char* bytes, bool log_bytes,
+  UDPDataTransferNetLogParam(int byte_count,
+                             const char* bytes,
+                             bool log_bytes,
                              const IPEndPoint* address);
-  virtual ~UDPDataTransferNetLogParam();
 
   virtual base::Value* ToValue() const OVERRIDE;
 
+ protected:
+  virtual ~UDPDataTransferNetLogParam();
+
  private:
   const int byte_count_;
   const std::string hex_encoded_bytes_;
   scoped_ptr<IPEndPoint> address_;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_ADDRESS_LIST_NET_LOG_PARAM_H_