[Autofill] Add a separate enumeration for HTML field type hints.

components/autofill/core/browser/form_group.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/form_group.h"
 
 #include "components/autofill/core/browser/autofill_type.h"
 
 namespace autofill {
 
@@ skipping 20 matching lines @@
   GetSupportedTypes(&types);
   for (ServerFieldTypeSet::const_iterator type = types.begin();
        type != types.end(); ++type) {
     if (!GetInfo(AutofillType(*type), app_locale).empty())
       non_empty_types->insert(*type);
   }
 }
 
 base::string16 FormGroup::GetInfo(const AutofillType& type,
                                   const std::string& app_locale) const {
-  return GetRawInfo(type.server_type());
+  return GetRawInfo(type.GetStorableType());
 }
 
 bool FormGroup::SetInfo(const AutofillType& type,
                         const base::string16& value,
                         const std::string& app_locale) {
-  SetRawInfo(type.server_type(), value);
+  SetRawInfo(type.GetStorableType(), value);
   return true;
 }
 
 }  // namespace autofill