NTP4: remove unused promo C++

chrome/browser/ui/webui/ntp/new_tab_page_handler.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_NEW_TAB_PAGE_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_PAGE_HANDLER_H_
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
-#include "chrome/browser/chrome_notification_types.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 class PrefRegistrySimple;
 class Profile;
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 // Handler for general New Tab Page functionality that does not belong in a
 // more specialized handler.
 class NewTabPageHandler : public content::WebUIMessageHandler,
                           public base::SupportsWeakPtr<NewTabPageHandler> {
  public:
   NewTabPageHandler();
 
   // Register NTP per-profile preferences.
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // Registers values (strings etc.) for the page.
   static void GetLocalizedValues(Profile* profile,
       base::DictionaryValue* values);
 
  private:
   ~NewTabPageHandler() override;
 
   // WebUIMessageHandler implementation.
   void RegisterMessages() override;
 
-  // Callback for "notificationPromoClosed". No arguments.
-  void HandleNotificationPromoClosed(const base::ListValue* args);
-
-  // Callback for "notificationPromoViewed". No arguments.
-  void HandleNotificationPromoViewed(const base::ListValue* args);
-
-  // Callback for "notificationPromoLinkClicked". No arguments.
-  void HandleNotificationPromoLinkClicked(const base::ListValue* args);
-
-  // Callback for "bubblePromoClosed". No arguments.
-  void HandleBubblePromoClosed(const base::ListValue* args);
-
-  // Callback for "bubblePromoViewed". No arguments.
-  void HandleBubblePromoViewed(const base::ListValue* args);
-
-  // Callback for "bubblePromoLinkClicked". No arguments.
-  void HandleBubblePromoLinkClicked(const base::ListValue* args);
-
   // Callback for "pageSelected".
   void HandlePageSelected(const base::ListValue* args);
 
   // Tracks the number of times the user has switches pages (for UMA).
   size_t page_switch_count_;
 
   // The purpose of this enum is to track which page on the NTP is showing.
   // The lower 10 bits of kNtpShownPage are used for the index within the page
   // group, and the rest of the bits are used for the page group ID (defined
   // here).
   static const int kPageIdOffset = 10;
   enum {
     INDEX_MASK = (1 << kPageIdOffset) - 1,
     APPS_PAGE_ID = 2 << kPageIdOffset,
     LAST_PAGE_ID = APPS_PAGE_ID,
   };
   static const int kHistogramEnumerationMax =
       (LAST_PAGE_ID >> kPageIdOffset) + 1;
 
-  // Helper to send out promo resource change notification.
-  void Notify(chrome::NotificationType notification_type);
-
   DISALLOW_COPY_AND_ASSIGN(NewTabPageHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_PAGE_HANDLER_H_