NTP4: remove unused promo C++

chrome/browser/ui/webui/ntp/ntp_resource_cache.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_NTP_NTP_RESOURCE_CACHE_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_NTP_RESOURCE_CACHE_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "components/prefs/pref_change_registrar.h"
-#include "components/web_resource/promo_resource_service.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Profile;
 
 namespace base {
 class RefCountedMemory;
 }
 
 namespace content {
@@ skipping 60 matching lines @@
   void CreateNewTabCSS();
 
   scoped_refptr<base::RefCountedMemory> new_tab_guest_html_;
   scoped_refptr<base::RefCountedMemory> new_tab_guest_css_;
   scoped_refptr<base::RefCountedMemory> new_tab_incognito_html_;
   scoped_refptr<base::RefCountedMemory> new_tab_incognito_css_;
   scoped_refptr<base::RefCountedMemory> new_tab_css_;
   content::NotificationRegistrar registrar_;
   PrefChangeRegistrar profile_pref_change_registrar_;
   PrefChangeRegistrar local_state_pref_change_registrar_;
-  scoped_ptr<web_resource::PromoResourceService::StateChangedSubscription>
-      promo_resource_subscription_;
 
   // Set based on platform_util::IsSwipeTrackingFromScrollEventsEnabled.
   bool is_swipe_tracking_from_scroll_events_enabled_;
   // Set based on NewTabUI::ShouldShowApps.
   bool should_show_apps_page_;
   bool should_show_other_devices_menu_;
 
   DISALLOW_COPY_AND_ASSIGN(NTPResourceCache);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_NTP_RESOURCE_CACHE_H_