RefCounted types should not have public destructors, chrome/browser/extensions

chrome/browser/extensions/extension_info_map.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_EXTENSIONS_EXTENSION_INFO_MAP_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INFO_MAP_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/time.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extensions_quota_service.h"
 #include "chrome/browser/extensions/process_map.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_set.h"
 
 class Extension;
 
 // Contains extension data that needs to be accessed on the IO thread. It can
 // be created/destroyed on any thread, but all other methods must be called on
 // the IO thread.
 class ExtensionInfoMap : public base::RefCountedThreadSafe<ExtensionInfoMap> {
  public:
   ExtensionInfoMap();
-  ~ExtensionInfoMap();
 
   const ExtensionSet& extensions() const { return extensions_; }
   const ExtensionSet& disabled_extensions() const {
     return disabled_extensions_;
   }
 
   const extensions::ProcessMap& process_map() const;
 
   // Callback for when new extensions are loaded.
   void AddExtension(const Extension* extension,
@@ skipping 28 matching lines @@
 
   // Returns true if there is exists an extension with the same origin as
   // |origin| in |process_id| with |permission|.
   bool SecurityOriginHasAPIPermission(
       const GURL& origin, int process_id,
       ExtensionAPIPermission::ID permission) const;
 
   ExtensionsQuotaService* GetQuotaService();
 
  private:
+  friend class base::RefCountedThreadSafe<ExtensionInfoMap>;
+
   // Extra dynamic data related to an extension.
   struct ExtraData;
   // Map of extension_id to ExtraData.
   typedef std::map<std::string, ExtraData> ExtraDataMap;
 
+  ~ExtensionInfoMap();
+
   ExtensionSet extensions_;
   ExtensionSet disabled_extensions_;
 
   // Extra data associated with enabled extensions.
   ExtraDataMap extra_data_;
 
   // Used by dispatchers to limit API quota for individual extensions.
   // The ExtensionQutoaService is not thread safe. We need to create and destroy
   // it on the IO thread.
   scoped_ptr<ExtensionsQuotaService> quota_service_;
 
   // Assignment of extensions to processes.
   extensions::ProcessMap process_map_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INFO_MAP_H_