Remove void** from disk_cache interface.

net/disk_cache/tracing/tracing_cache_backend.cc

 // Copyright (c) 2013 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/tracing/tracing_cache_backend.h"
 
 #include "net/base/net_errors.h"
 
 namespace disk_cache {
 
@@ skipping 279 matching lines @@
                                             base::Time end_time,
                                             const CompletionCallback& cb) {
   return backend_->DoomEntriesBetween(initial_time, end_time, cb);
 }
 
 int TracingCacheBackend::DoomEntriesSince(base::Time initial_time,
                                           const CompletionCallback& callback) {
   return backend_->DoomEntriesSince(initial_time, callback);
 }
 
-int TracingCacheBackend::OpenNextEntry(void** iter, Entry** next_entry,
+int TracingCacheBackend::OpenNextEntry(Iterator* iter, Entry** next_entry,
                                        const CompletionCallback& callback) {
   return backend_->OpenNextEntry(iter, next_entry, callback);
 }
 
-void TracingCacheBackend::EndEnumeration(void** iter) {
-  return backend_->EndEnumeration(iter);
-}
-
 void TracingCacheBackend::GetStats(StatsItems* stats) {
   return backend_->GetStats(stats);
 }
 
 void TracingCacheBackend::OnExternalCacheHit(const std::string& key) {
   return backend_->OnExternalCacheHit(key);
 }
 
 }  // namespace disk_cache