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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_NOTIFICATIONS_EXTENSION_WELCOME_NOTIFICATION_FACTORY_H_
      6 #define CHROME_BROWSER_NOTIFICATIONS_EXTENSION_WELCOME_NOTIFICATION_FACTORY_H_
      7 
      8 #include "base/memory/singleton.h"
      9 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
     10 
     11 class ExtensionWelcomeNotification;
     12 
     13 // Singleton owning the extension welcome notification objects and associates
     14 // them with the browser context for which they may have to be shown.
     15 class ExtensionWelcomeNotificationFactory
     16     : public BrowserContextKeyedServiceFactory {
     17  public:
     18   // Returns the ExtensionWelcomeNotification instance to be used for |context|.
     19   static ExtensionWelcomeNotification* GetForBrowserContext(
     20       content::BrowserContext* context);
     21 
     22   static ExtensionWelcomeNotificationFactory* GetInstance();
     23 
     24  private:
     25   friend struct DefaultSingletonTraits<ExtensionWelcomeNotificationFactory>;
     26 
     27   ExtensionWelcomeNotificationFactory();
     28   virtual ~ExtensionWelcomeNotificationFactory();
     29 
     30   // BrowserContextKeyedServiceFactory:
     31   virtual KeyedService* BuildServiceInstanceFor(
     32       content::BrowserContext* context) const OVERRIDE;
     33   virtual content::BrowserContext* GetBrowserContextToUse(
     34       content::BrowserContext* context) const OVERRIDE;
     35 };
     36 
     37 #endif  // CHROME_BROWSER_NOTIFICATIONS_EXTENSION_WELCOME_NOTIFICATION_FACTORY_H_
     38