Mitigate spoofing attempt using Latin letters.

base/test/dafsa/effective_tld_names_unittest2.gperf

 %{
 // 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.
 // Test file used by registry_controlled_domain_unittest.
 // We edit this file manually, then run
 // gperf -a -L "C++" -C -c -o -t -k '*' -NFindDomain -ZPerfect_Hash_Test2 -P -K name_offset -Q stringpool2 -D -T effective_tld_names_unittest2.gperf >  effective_tld_names_unittest2.cc
 // to generate the perfect hashmap.
 %}
 struct DomainRule {
   int name_offset;
   int type;  // 1: exception, 2: wildcard, 4: private
 };
 %%
 jp, 0
 bar.jp, 0
 %%