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

chrome/browser/autofill/phone_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/phone_field.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "base/string_util.h"
@@ skipping 99 matching lines @@
   // Phone: <cc>:3 - <phone>:10 (Ext: <ext>)?
   { REGEX_PHONE, FIELD_COUNTRY_CODE, 3 },
   { REGEX_PHONE, FIELD_PHONE, 10 },
   { REGEX_SEPARATOR, FIELD_NONE, 0 },
   // Phone: <phone> (Ext: <ext>)?
   { REGEX_PHONE, FIELD_PHONE, 0 },
   { REGEX_SEPARATOR, FIELD_NONE, 0 },
 };
 
 // static
-FormField* PhoneField::Parse(AutofillScanner* scanner,
-                             bool parse_new_field_types) {
+FormField* PhoneField::Parse(AutofillScanner* scanner) {
   if (scanner->IsEnd())
     return NULL;
 
   scanner->SaveCursor();
 
   // The form owns the following variables, so they should not be deleted.
   const AutofillField* parsed_fields[FIELD_MAX];
 
   for (size_t i = 0; i < arraysize(kPhoneFieldGrammars); ++i) {
     memset(parsed_fields, 0, sizeof(parsed_fields));
@@ skipping 133 matching lines @@
     case REGEX_SUFFIX:
       return UTF8ToUTF16(autofill::kPhoneSuffixRe);
     case REGEX_EXTENSION:
       return UTF8ToUTF16(autofill::kPhoneExtensionRe);
     default:
       NOTREACHED();
       break;
   }
   return string16();
 }