[Autofill] Enable heuristic detection of credit card issuer fields.

chrome/browser/autofill/credit_card_field.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_AUTOFILL_CREDIT_CARD_FIELD_H_
 #define CHROME_BROWSER_AUTOFILL_CREDIT_CARD_FIELD_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "chrome/browser/autofill/autofill_type.h"
 #include "chrome/browser/autofill/form_field.h"
 
 class AutofillField;
 class AutofillScanner;
 
 class CreditCardField : public FormField {
  public:
-  static FormField* Parse(AutofillScanner* scanner,
-                          bool parse_new_field_types);
+  static FormField* Parse(AutofillScanner* scanner);
 
  protected:
   // FormField:
   virtual bool ClassifyField(FieldTypeMap* map) const OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(CreditCardFieldTest, ParseMiniumCreditCard);
   FRIEND_TEST_ALL_PREFIXES(CreditCardFieldTest, ParseFullCreditCard);
   FRIEND_TEST_ALL_PREFIXES(CreditCardFieldTest, ParseCreditCardType);
   FRIEND_TEST_ALL_PREFIXES(CreditCardFieldTest, ParseExpMonthYear);
@@ skipping 30 matching lines @@
   const AutofillField* expiration_date_;
 
   // True if the year is detected to be a 2-digit year; otherwise, we assume
   // a 4-digit year.
   bool is_two_digit_year_;
 
   DISALLOW_COPY_AND_ASSIGN(CreditCardField);
 };
 
 #endif  // CHROME_BROWSER_AUTOFILL_CREDIT_CARD_FIELD_H_