Revert of Remove void** from disk_cache interface.

net/tools/dump_cache/simple_cache_dumper.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 NET_TOOLS_DUMP_CACHE_SIMPLE_CACHE_DUMPER_H_
 #define NET_TOOLS_DUMP_CACHE_SIMPLE_CACHE_DUMPER_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread.h"
 #include "net/base/completion_callback.h"
-#include "net/disk_cache/disk_cache.h"
 
 class DiskDumper;
 
+namespace disk_cache {
+class Backend;
+class Entry;
+}  // namespace disk_cache
+
 namespace net {
 
 class IOBufferWithSize;
 
 // A class for dumping the contents of a disk cache to a series of text
 // files.  The files will contain the response headers, followed by the
 // response body, as if the HTTP response were written directly to disk.
 class SimpleCacheDumper {
  public:
   SimpleCacheDumper(base::FilePath input_path, base::FilePath output_path);
@@ skipping 42 matching lines @@
   int DoDone();
 
   void OnIOComplete(int rv);
 
   State state_;
   base::FilePath input_path_;
   base::FilePath output_path_;
   scoped_ptr<disk_cache::Backend> cache_;
   scoped_ptr<DiskDumper> writer_;
   base::Thread* cache_thread_;
-  scoped_ptr<disk_cache::Backend::Iterator> iter_;
+  void* iter_;
   disk_cache::Entry* src_entry_;
   disk_cache::Entry* dst_entry_;
   CompletionCallback io_callback_;
   scoped_refptr<IOBufferWithSize> buf_;
   int rv_;
 
   DISALLOW_COPY_AND_ASSIGN(SimpleCacheDumper);
 };
 
 }  // namespace net
 
 #endif  // NET_TOOLS_DUMP_CACHE_SIMPLE_CACHE_DUMPER_H_