Add country combobox to change country and rebuild address inputs.

chrome/browser/ui/autofill/autofill_dialog_i18n_input.cc

 // Copyright 2014 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_i18n_input.h"
 
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/chrome_switches.h"
 #include "components/autofill/core/browser/field_types.h"
@@ skipping 84 matching lines @@
       base::string16 placeholder = base::UTF8ToUTF16(component.name);
       DetailInput input = { length, server_type, placeholder };
       inputs->push_back(input);
     }
   }
 
   ServerFieldType server_type =
       billing ? ADDRESS_BILLING_COUNTRY : ADDRESS_HOME_COUNTRY;
   base::string16 placeholder_text =
       l10n_util::GetStringUTF16(IDS_AUTOFILL_FIELD_LABEL_COUNTRY);
-  // TODO(dbeam): unhide so users can switch countries. http://crbug.com/331544
-  DetailInput input = { DetailInput::NONE, server_type, placeholder_text };
+  DetailInput input = { DetailInput::LONG, server_type, placeholder_text };
   inputs->push_back(input);
 }
 
 }  // namespace i18ninput
 }  // namespace autofill