RefCounted types should not have public destructors, net/

net/base/x509_certificate_net_log_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_BASE_X509_CERT_NET_LOG_PARAM_H_
 #define NET_BASE_X509_CERT_NET_LOG_PARAM_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "net/base/net_log.h"
 
 namespace net {
 
 class X509Certificate;
 
 // NetLog parameter to describe an X509Certificate.
 // Note: These parameters are memory intensive, due to PEM-encoding each
 // certificate, thus should only be used when logging at NetLog::LOG_ALL.
 class X509CertificateNetLogParam : public NetLog::EventParameters {
  public:
   explicit X509CertificateNetLogParam(X509Certificate* certificate);
-  virtual ~X509CertificateNetLogParam();
 
   virtual base::Value* ToValue() const OVERRIDE;
 
+ protected:
+  virtual ~X509CertificateNetLogParam();
+
  private:
   std::vector<std::string> encoded_chain_;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_X509_CERT_NET_LOG_PARAM_H_