Get rid of DISALLOW_EVIL_CONSTRUCTORS macro usage in our code base.

net/disk_cache/entry_impl.cc

Index: net/disk_cache/entry_impl.cc
diff --git a/net/disk_cache/entry_impl.cc b/net/disk_cache/entry_impl.cc
index a1e0b327daabcad01a02908a520e68f1d9ffc71b..e6439104e3912570718a3ea04eef99c41b0903cf 100644
--- a/net/disk_cache/entry_impl.cc
+++ b/net/disk_cache/entry_impl.cc
@@ -1,4 +1,4 @@
-// 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.
 
@@ -45,7 +45,7 @@ class SyncCallback: public disk_cache::FileIOCallback {
   scoped_refptr<net::IOBuffer> buf_;
   TimeTicks start_;
 
-  DISALLOW_EVIL_CONSTRUCTORS(SyncCallback);
+  DISALLOW_COPY_AND_ASSIGN(SyncCallback);
 };
 
 void SyncCallback::OnFileIOComplete(int bytes_copied) {