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

chrome/browser/autofill/name_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/name_field.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 38 matching lines @@
   const AutofillField* first_name_;
   const AutofillField* middle_name_;  // Optional.
   const AutofillField* last_name_;
   bool middle_initial_;  // True if middle_name_ is a middle initial.
 
   DISALLOW_COPY_AND_ASSIGN(FirstLastNameField);
 };
 
 }  // namespace
 
-FormField* NameField::Parse(AutofillScanner* scanner,
-                            bool parse_new_field_types) {
+FormField* NameField::Parse(AutofillScanner* scanner) {
   if (scanner->IsEnd())
     return NULL;
 
   // Try FirstLastNameField first since it's more specific.
   NameField* field = FirstLastNameField::Parse(scanner);
   if (!field)
     field = FullNameField::Parse(scanner);
   return field;
 }
 
@@ skipping 135 matching lines @@
       middle_initial_(false) {
 }
 
 bool FirstLastNameField::ClassifyField(FieldTypeMap* map) const {
   bool ok = AddClassification(first_name_, NAME_FIRST, map);
   ok = ok && AddClassification(last_name_, NAME_LAST, map);
   AutofillFieldType type = middle_initial_ ? NAME_MIDDLE_INITIAL : NAME_MIDDLE;
   ok = ok && AddClassification(middle_name_, type, map);
   return ok;
 }