get rid of another inappropriate ToLowerASCII

components/autofill/core/browser/credit_card.cc

 // Copyright 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 "components/autofill/core/browser/credit_card.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <ostream>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/guid.h"
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "components/autofill/core/browser/autofill_field.h"
 #include "components/autofill/core/browser/autofill_regexes.h"
 #include "components/autofill/core/browser/autofill_type.h"
 #include "components/autofill/core/browser/validation.h"
+#include "components/autofill/core/common/autofill_l10n_util.h"
 #include "components/autofill/core/common/form_field_data.h"
 #include "grit/components_scaled_resources.h"
 #include "grit/components_strings.h"
 #include "third_party/icu/source/common/unicode/uloc.h"
 #include "third_party/icu/source/i18n/unicode/dtfmtsym.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace autofill {
 
 namespace {
@@ skipping 27 matching lines @@
   // Try parsing the |month| as a number.
   if (base::StringToInt(month, num))
     return true;
 
   // If the locale is unknown, give up.
   if (app_locale.empty())
     return false;
 
   // Otherwise, try parsing the |month| as a named month, e.g. "January" or
   // "Jan".
-  base::string16 lowercased_month = base::StringToLowerASCII(month);
-
+  l10n::CaseInsensitiveCompare compare;
   UErrorCode status = U_ZERO_ERROR;
   icu::Locale locale(app_locale.c_str());
   icu::DateFormatSymbols date_format_symbols(locale, status);
   DCHECK(status == U_ZERO_ERROR || status == U_USING_FALLBACK_WARNING ||
          status == U_USING_DEFAULT_WARNING);
 
   int32_t num_months;
   const icu::UnicodeString* months = date_format_symbols.getMonths(num_months);
   for (int32_t i = 0; i < num_months; ++i) {
-    const base::string16 icu_month = base::string16(months[i].getBuffer(),
-                                        months[i].length());
-    if (lowercased_month == base::StringToLowerASCII(icu_month)) {
+    const base::string16 icu_month(months[i].getBuffer(), months[i].length());
+    if (compare.StringsEqual(icu_month, month)) {
       *num = i + 1;  // Adjust from 0-indexed to 1-indexed.
       return true;
     }
   }
 
   months = date_format_symbols.getShortMonths(num_months);
   for (int32_t i = 0; i < num_months; ++i) {
-    const base::string16 icu_month = base::string16(months[i].getBuffer(),
-                                        months[i].length());
-    if (lowercased_month == base::StringToLowerASCII(icu_month)) {
+    const base::string16 icu_month(months[i].getBuffer(), months[i].length());
+    if (compare.StringsEqual(icu_month, month)) {
       *num = i + 1;  // Adjust from 0-indexed to 1-indexed.
       return true;
     }
   }
 
   *num = 0;
   return false;
 }
 
 base::string16 TypeForFill(const std::string& type) {
@@ skipping 677 matching lines @@
 const char* const kAmericanExpressCard = "americanExpressCC";
 const char* const kDinersCard = "dinersCC";
 const char* const kDiscoverCard = "discoverCC";
 const char* const kGenericCard = "genericCC";
 const char* const kJCBCard = "jcbCC";
 const char* const kMasterCard = "masterCardCC";
 const char* const kUnionPay = "unionPayCC";
 const char* const kVisaCard = "visaCC";
 
 }  // namespace autofill