re-commit r181807:

chrome/browser/ui/autofill/autofill_dialog_models.cc

 // Copyright (c) 2012 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/ui/autofill/autofill_dialog_models.h"
 
 #include "base/stringprintf.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
@@ skipping 11 matching lines @@
       checked_item_(0) {}
 
 SuggestionsMenuModel::~SuggestionsMenuModel() {}
 
 void SuggestionsMenuModel::AddKeyedItem(
     const std::string& key, const string16& item) {
   items_.push_back(std::make_pair(key, item));
   AddCheckItem(items_.size() - 1, item);
 }
 
+void SuggestionsMenuModel::Reset() {
+  checked_item_ = 0;
+  items_.clear();
+  Clear();
+}
+
 std::string SuggestionsMenuModel::GetItemKeyAt(int index) const {
   return items_[index].first;
 }
 
 bool SuggestionsMenuModel::IsCommandIdChecked(
     int command_id) const {
   return checked_item_ == command_id;
 }
 
 bool SuggestionsMenuModel::IsCommandIdEnabled(
@@ skipping 39 matching lines @@
 
 int YearComboboxModel::GetItemCount() const {
   return 10;
 }
 
 string16 YearComboboxModel::GetItemAt(int index) {
   return base::IntToString16(this_year_ + index);
 }
 
 }  // autofill