Second patch in making destructors of refcounted objects private.

net/disk_cache/sparse_control.cc

 // Copyright (c) 2009 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.
 
 #include "net/disk_cache/sparse_control.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "base/time.h"
@@ skipping 42 matching lines @@
       : backend_(backend), name_(name) {}
 
   virtual void OnFileIOComplete(int bytes_copied);
 
   // Two ways of deleting the children: if we have the children map, use Start()
   // directly, otherwise pass the data address to ReadData().
   void Start(char* buffer, int len);
   void ReadData(disk_cache::Addr address, int len);
 
  private:
+  friend class base::RefCounted<ChildrenDeleter>;
+  ~ChildrenDeleter() {}
+
   void DeleteChildren();
 
   disk_cache::BackendImpl* backend_;
   std::string name_;
   disk_cache::Bitmap children_map_;
   int64 signature_;
   scoped_array<char> buffer_;
   DISALLOW_EVIL_CONSTRUCTORS(ChildrenDeleter);
 };
 
@@ skipping 658 matching lines @@
     net::CompletionCallback* c = abort_callbacks_[i];
     if (i == abort_callbacks_.size() - 1)
       abort_callbacks_.clear();
 
     entry_->Release();  // Don't touch object after this line.
     c->Run(net::OK);
   }
 }
 
 }  // namespace disk_cache