Fix regression due to deprecated promo preference.

chrome/browser/web_resource/promo_resource_service.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/web_resource/promo_resource_service.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/threading/thread_restrictions.h"
@@ skipping 168 matching lines @@
 
 void PromoResourceService::Unpack(const DictionaryValue& parsed_json) {
   NotificationPromo notification_promo(profile_);
   notification_promo.InitFromJson(parsed_json);
 
   if (notification_promo.new_notification()) {
     ScheduleNotification(notification_promo.StartTimeForGroup(),
                          notification_promo.EndTime());
   }
 }
-
-bool PromoResourceService::CanShowNotificationPromo(Profile* profile) {
-  NotificationPromo notification_promo(profile);
-  notification_promo.InitFromPrefs();
-  return notification_promo.CanShow();
-}