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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
      6 #define CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
      7 
      8 #include "base/memory/weak_ptr.h"
      9 #include "chrome/browser/sync/sessions/sessions_sync_manager.h"
     10 #include "content/public/browser/notification_observer.h"
     11 #include "content/public/browser/notification_registrar.h"
     12 
     13 class Profile;
     14 
     15 namespace content {
     16 class WebContents;
     17 }
     18 
     19 namespace browser_sync {
     20 
     21 // A SessionsSyncManager::LocalEventRouter that drives session sync via
     22 // the NotificationService.
     23 class NotificationServiceSessionsRouter
     24     : public LocalSessionEventRouter,
     25       public content::NotificationObserver {
     26  public:
     27   NotificationServiceSessionsRouter(
     28       Profile* profile,
     29       const syncer::SyncableService::StartSyncFlare& flare);
     30   virtual ~NotificationServiceSessionsRouter();
     31 
     32   // content::NotificationObserver implementation.
     33   // BrowserSessionProvider -> sync API model change application.
     34   virtual void Observe(int type,
     35                        const content::NotificationSource& source,
     36                        const content::NotificationDetails& details) OVERRIDE;
     37 
     38   // SessionsSyncManager::LocalEventRouter implementation.
     39   virtual void StartRoutingTo(LocalSessionEventHandler* handler) OVERRIDE;
     40   virtual void Stop() OVERRIDE;
     41 
     42  private:
     43   // Called when the URL visited in |web_contents| was blocked by the
     44   // ManagedUserService. We forward this on to our handler_ via the
     45   // normal OnLocalTabModified, but pass through here via a WeakPtr
     46   // callback from ManagedUserService and to extract the tab delegate
     47   // from WebContents.
     48   void OnNavigationBlocked(content::WebContents* web_contents);
     49 
     50   LocalSessionEventHandler* handler_;
     51   content::NotificationRegistrar registrar_;
     52   Profile* const profile_;
     53   syncer::SyncableService::StartSyncFlare flare_;
     54   base::WeakPtrFactory<NotificationServiceSessionsRouter> weak_ptr_factory_;
     55 
     56   DISALLOW_COPY_AND_ASSIGN(NotificationServiceSessionsRouter);
     57 };
     58 
     59 }  // namespace browser_sync
     60 
     61 #endif  // CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
     62