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

components/autofill/core/browser/autofill_manager.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/autofill_manager.h"
 
 #include <stddef.h>
 
 #include <limits>
 #include <map>
@@ skipping 1057 matching lines @@
 void AutofillManager::GetProfileSuggestions(
     FormStructure* form,
     const FormFieldData& field,
     const AutofillType& type,
     std::vector<base::string16>* values,
     std::vector<base::string16>* labels,
     std::vector<base::string16>* icons,
     std::vector<int>* unique_ids) const {
   std::vector<NativeFieldType> field_types(form->field_count());
   for (size_t i = 0; i < form->field_count(); ++i) {
-    field_types.push_back(form->field(i)->Type().native_type());
+    field_types.push_back(
+        form->field(i)->Type().GetApproximateNativeFieldType());
   }
   std::vector<GUIDPair> guid_pairs;
 
   personal_data_->GetProfileSuggestions(
       type, field.value, field.is_autofilled, field_types,
       values, labels, icons, &guid_pairs);
 
   for (size_t i = 0; i < guid_pairs.size(); ++i) {
     unique_ids->push_back(PackGUIDs(GUIDPair(std::string(), 0),
                                     guid_pairs[i]));
@@ skipping 121 matching lines @@
 
 void AutofillManager::UpdateInitialInteractionTimestamp(
     const TimeTicks& interaction_timestamp) {
   if (initial_interaction_timestamp_.is_null() ||
       interaction_timestamp < initial_interaction_timestamp_) {
     initial_interaction_timestamp_ = interaction_timestamp;
   }
 }
 
 }  // namespace autofill