Use notification display service to collect persistent notifications.

content/browser/notifications/notification_id_generator.h

 // Copyright 2015 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 CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_ID_GENERATOR_H_
 #define CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_ID_GENERATOR_H_
 
 #include <stdint.h>
 #include <string>
 
@@ skipping 22 matching lines @@
 // when to replace notifications, and as the unique identifier when a
 // notification has to be closed programmatically.
 //
 // It is important to note that, for persistent notifications, the generated
 // notification id can outlive the browser process responsible for creating it.
 class CONTENT_EXPORT NotificationIdGenerator {
  public:
   explicit NotificationIdGenerator(BrowserContext* browser_context);
   ~NotificationIdGenerator();
 
-  // Returns whether |notification_id| belongs to a persistent notification.
-  static bool IsPersistentNotification(
-      const base::StringPiece& notification_id);
-
-  // Returns whether |notification_id| belongs to a non-persistent notification.
-  static bool IsNonPersistentNotification(
-      const base::StringPiece& notification_id);
-
   // Generates an id for a persistent notification given the notification's
   // origin, tag and persistent notification id. The persistent notification id
   // will have been created by the persistent notification database.
   std::string GenerateForPersistentNotification(
       const GURL& origin,
       const std::string& tag,
       int64_t persistent_notification_id) const;
 
   // Generates an id for a non-persistent notification given the notification's
   // origin, tag and non-persistent notification id. The non-persistent
   // notification id must've been created by the |render_process_id|.
   std::string GenerateForNonPersistentNotification(
       const GURL& origin,
       const std::string& tag,
       int non_persistent_notification_id,
       int render_process_id) const;
 
  private:
   // The NotificationMessageFilter that owns |this| will outlive the context.
   BrowserContext* browser_context_;
 };
 
 }  // namespace context
 
 #endif  // CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_ID_GENERATOR_H_