Get rid of DISALLOW_EVIL_CONSTRUCTORS macro usage in our code base.

net/disk_cache/mem_backend_impl.h

-// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
 // See net/disk_cache/disk_cache.h for the public interface of the cache.
 
 #ifndef NET_DISK_CACHE_MEM_BACKEND_IMPL_H__
 #define NET_DISK_CACHE_MEM_BACKEND_IMPL_H__
 
 #include "base/hash_tables.h"
 
@@ skipping 75 matching lines @@
   void AddStorageSize(int32 bytes);
   void SubstractStorageSize(int32 bytes);
 
   typedef base::hash_map<std::string, MemEntryImpl*> EntryMap;
 
   EntryMap entries_;
   MemRankings rankings_;  // Rankings to be able to trim the cache.
   int32 max_size_;        // Maximum data size for this instance.
   int32 current_size_;
 
-  DISALLOW_EVIL_CONSTRUCTORS(MemBackendImpl);
+  DISALLOW_COPY_AND_ASSIGN(MemBackendImpl);
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_MEM_BACKEND_IMPL_H__