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

chrome/browser/autofill/address_field.cc

 // 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.
 
 #include "chrome/browser/autofill/address_field.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/autofill/autofill_field.h"
 #include "chrome/browser/autofill/autofill_regex_constants.h"
 #include "chrome/browser/autofill/autofill_scanner.h"
 #include "chrome/browser/autofill/field_types.h"
 #include "ui/base/l10n/l10n_util.h"
 
-FormField* AddressField::Parse(AutofillScanner* scanner,
-                               bool parse_new_field_types) {
+FormField* AddressField::Parse(AutofillScanner* scanner) {
   if (scanner->IsEnd())
     return NULL;
 
   scoped_ptr<AddressField> address_field(new AddressField);
   const AutofillField* const initial_field = scanner->Cursor();
   size_t saved_cursor = scanner->SaveCursor();
 
   string16 attention_ignored = UTF8ToUTF16(autofill::kAttentionIgnoredRe);
   string16 region_ignored = UTF8ToUTF16(autofill::kRegionIgnoredRe);
 
@@ skipping 295 matching lines @@
     return kBillingAddress;
 
   if (bill == string16::npos && ship != string16::npos)
     return kShippingAddress;
 
   if (bill > ship)
     return kBillingAddress;
 
   return kShippingAddress;
 }