Use notification display service to collect persistent notifications.

content/browser/notifications/platform_notification_context_impl.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_PLATFORM_NOTIFICATION_CONTEXT_IMPL_H_
 #define CONTENT_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_CONTEXT_IMPL_H_
 
 #include <stdint.h>
+#include <set>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/browser/notifications/notification_id_generator.h"
 #include "content/browser/service_worker/service_worker_context_observer.h"
@@ skipping 100 matching lines @@
   void OpenDatabase(const base::Closure& success_closure,
                     const base::Closure& failure_closure);
 
   // Actually reads the notification data from the database. Must only be
   // called on the |task_runner_| thread. |callback| will be invoked on the
   // IO thread when the operation has completed.
   void DoReadNotificationData(const std::string& notification_id,
                               const GURL& origin,
                               const ReadResultCallback& callback);
 
+  // Updates the database (and the result callback) based on
+  // |displayed_notifications|
+  // if |sync_supported|. Called on the IO thread.
+  void SynchronizeDisplayedNotificationsForServiceWorkerRegistration(
+      const GURL& origin,
+      int64_t service_worker_registration_id,
+      const ReadAllResultCallback& callback,
+      std::set<std::string>* displayed_notifications,
+      bool sync_supported);
+
   // Actually reads all notification data from the database. Must only be
   // called on the |task_runner_| thread. |callback| will be invoked on the
   // IO thread when the operation has completed.
   void DoReadAllNotificationDataForServiceWorkerRegistration(
       const GURL& origin,
       int64_t service_worker_registration_id,
-      const ReadAllResultCallback& callback);
+      const ReadAllResultCallback& callback,
+      std::set<std::string>* displayed_notifications,
+      bool synchronization_supported);
 
   // Actually writes the notification database to the database. Must only be
   // called on the |task_runner_| thread. |callback| will be invoked on the
   // IO thread when the operation has completed.
   void DoWriteNotificationData(const GURL& origin,
                                const NotificationDatabaseData& database_data,
                                const WriteResultCallback& callback);
 
   // Actually deletes the notification information from the database. Must only
   // be called on the |task_runner_| thread. |callback| will be invoked on the
@@ skipping 36 matching lines @@
   // The notification services are owned by the platform context, and will be
   // removed when either this class is destroyed or the Mojo pipe disconnects.
   std::vector<std::unique_ptr<BlinkNotificationServiceImpl>> services_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformNotificationContextImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_CONTEXT_IMPL_H_