Second patch in making destructors of refcounted objects private.

net/base/sdch_manager.h

 // Copyright (c) 2006-2008 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.
 
 // Provides global database of differential decompression dictionaries for the
 // SDCH filter (processes sdch enconded content).
 
 // Exactly one instance of SdchManager is built, and all references are made
 // into that collection.
 //
@@ skipping 141 matching lines @@
   static const size_t kMaxDictionaryCount;
 
   // There is one instance of |Dictionary| for each memory-cached SDCH
   // dictionary.
   class Dictionary : public base::RefCounted<Dictionary> {
    public:
     // Sdch filters can get our text to use in decoding compressed data.
     const std::string& text() const { return text_; }
 
    private:
+    friend class base::RefCounted<Dictionary>;
     friend class SdchManager;  // Only manager can construct an instance.
     FRIEND_TEST(SdchFilterTest, PathMatch);
 
     // Construct a vc-diff usable dictionary from the dictionary_text starting
     // at the given offset.  The supplied client_hash should be used to
     // advertise the dictionary's availability relative to the suppplied URL.
     Dictionary(const std::string& dictionary_text, size_t offset,
                const std::string& client_hash, const GURL& url,
                const std::string& domain, const std::string& path,
                const base::Time& expiration, const std::set<int> ports);
+    ~Dictionary() {}
 
     const GURL& url() const { return url_; }
     const std::string& client_hash() const { return client_hash_; }
 
     // Security method to check if we can advertise this dictionary for use
     // if the |target_url| returns SDCH compressed data.
     bool CanAdvertise(const GURL& target_url);
 
     // Security methods to check if we can establish a new dictionary with the
     // given data, that arrived in response to get of dictionary_url.
@@ skipping 170 matching lines @@
   DomainCounter exponential_blacklist_count;
 
   // List of hostnames for which a latency experiment is allowed (because a
   // round trip test has recently passed).
   ExperimentSet allow_latency_experiment_;
 
   DISALLOW_COPY_AND_ASSIGN(SdchManager);
 };
 
 #endif  // NET_BASE_SDCH_MANAGER_H_