RefCounted types should not have public destructors, net/ edition

chrome/browser/io_thread.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 CHROME_BROWSER_IO_THREAD_H_
 #define CHROME_BROWSER_IO_THREAD_H_
 #pragma once
 
 #include <string>
 
@@ skipping 166 matching lines @@
   // to the IOThread.  IOThread owns them all, despite not using scoped_ptr.
   // This is because the destructor of IOThread runs on the wrong thread.  All
   // member variables should be deleted in CleanUp().
 
   // These member variables are initialized in Init() and do not change for the
   // lifetime of the IO thread.
 
   Globals* globals_;
 
   // Observer that logs network changes to the ChromeNetLog.
-  scoped_ptr<net::NetworkChangeNotifier::IPAddressObserver>
-      network_change_observer_;
+  class LoggingNetworkChangeObserver;
+  scoped_ptr<LoggingNetworkChangeObserver> network_change_observer_;
 
   BooleanPrefMember system_enable_referrers_;
 
   // Store HTTP Auth-related policies in this thread.
   std::string auth_schemes_;
   bool negotiate_disable_cname_lookup_;
   bool negotiate_enable_port_;
   std::string auth_server_whitelist_;
   std::string auth_delegate_whitelist_;
   std::string gssapi_library_name_;
@@ skipping 12 matching lines @@
       system_url_request_context_getter_;
 
   net::SdchManager* sdch_manager_;
 
   base::WeakPtrFactory<IOThread> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(IOThread);
 };
 
 #endif  // CHROME_BROWSER_IO_THREAD_H_