Add 2-lines summary to CC/Address for Wallet items.

ui/base/models/menu_model.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 "ui/base/models/menu_model.h"
 
 namespace ui {
 
 bool MenuModel::IsVisibleAt(int index) const {
   return true;
@@ skipping 14 matching lines @@
       }
     }
     if ((*model)->GetCommandIdAt(candidate_index) == command_id) {
       *index = candidate_index;
       return true;
     }
   }
   return false;
 }
 
+string16 MenuModel::GetSubLabelAt(int index) const {
+  return string16();
+}
+
 const gfx::Font* MenuModel::GetLabelFontAt(int index) const {
   return NULL;
 }
 
+const gfx::Font* MenuModel::GetSubLabelFontAt(int index) const {
+  return NULL;
+}
+
 // Default implementation ignores the event flags.
 void MenuModel::ActivatedAt(int index, int event_flags) {
   ActivatedAt(index);
 }
 
 }  // namespace ui