Revert of Remove void** from disk_cache interface.

net/http/mock_http_cache.h

 // Copyright (c) 2011 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.
 
 // This is a mock of the http cache and related testing classes. To be fair, it
 // is not really a mock http cache given that it uses the real implementation of
 // the http cache, but it has fake implementations of all required components,
 // so it is useful for unit tests at the http layer.
 
 #ifndef NET_HTTP_MOCK_HTTP_CACHE_H_
@@ skipping 96 matching lines @@
   virtual int DoomEntry(const std::string& key,
                         const net::CompletionCallback& callback) OVERRIDE;
   virtual int DoomAllEntries(const net::CompletionCallback& callback) OVERRIDE;
   virtual int DoomEntriesBetween(
       base::Time initial_time,
       base::Time end_time,
       const net::CompletionCallback& callback) OVERRIDE;
   virtual int DoomEntriesSince(
       base::Time initial_time,
       const net::CompletionCallback& callback) OVERRIDE;
-  virtual scoped_ptr<Iterator> CreateIterator() OVERRIDE;
+  virtual int OpenNextEntry(void** iter, disk_cache::Entry** next_entry,
+                            const net::CompletionCallback& callback) OVERRIDE;
+  virtual void EndEnumeration(void** iter) OVERRIDE;
   virtual void GetStats(
       std::vector<std::pair<std::string, std::string> >* stats) OVERRIDE;
   virtual void OnExternalCacheHit(const std::string& key) OVERRIDE;
 
   // Returns number of times a cache entry was successfully opened.
   int open_count() const { return open_count_; }
 
   // Returns number of times a cache entry was successfully created.
   int create_count() const { return create_count_; }
 
   // Fail any subsequent CreateEntry and OpenEntry.
   void set_fail_requests() { fail_requests_ = true; }
 
   // Return entries that fail some of their requests.
   void set_soft_failures(bool value) { soft_failures_ = value; }
 
   // Makes sure that CreateEntry is not called twice for a given key.
   void set_double_create_check(bool value) { double_create_check_ = value; }
 
   // Makes all requests for data ranges to fail as not implemented.
   void set_fail_sparse_requests() { fail_sparse_requests_ = true; }
 
   void ReleaseAll();
 
  private:
   typedef base::hash_map<std::string, MockDiskEntry*> EntryMap;
-  class NotImplementedIterator;
 
   void CallbackLater(const net::CompletionCallback& callback, int result);
 
   EntryMap entries_;
   int open_count_;
   int create_count_;
   bool fail_requests_;
   bool soft_failures_;
   bool double_create_check_;
   bool fail_sparse_requests_;
@@ skipping 88 matching lines @@
  private:
   int Result() { return fail_ ? net::ERR_FAILED : net::OK; }
 
   scoped_ptr<disk_cache::Backend>* backend_;
   net::CompletionCallback callback_;
   bool block_;
   bool fail_;
 };
 
 #endif  // NET_HTTP_MOCK_HTTP_CACHE_H_