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      1 // Copyright 2013 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 EXTENSIONS_BROWSER_EXTENSION_REGISTRY_FACTORY_H_
      6 #define EXTENSIONS_BROWSER_EXTENSION_REGISTRY_FACTORY_H_
      7 
      8 #include "base/compiler_specific.h"
      9 #include "base/memory/singleton.h"
     10 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
     11 
     12 namespace extensions {
     13 
     14 class ExtensionRegistry;
     15 
     16 // Factory for ExtensionRegistry objects. ExtensionRegistry objects are shared
     17 // between an incognito browser context and its master browser context.
     18 class ExtensionRegistryFactory : public BrowserContextKeyedServiceFactory {
     19  public:
     20   static ExtensionRegistry* GetForBrowserContext(
     21       content::BrowserContext* context);
     22 
     23   static ExtensionRegistryFactory* GetInstance();
     24 
     25  private:
     26   friend struct DefaultSingletonTraits<ExtensionRegistryFactory>;
     27 
     28   ExtensionRegistryFactory();
     29   virtual ~ExtensionRegistryFactory();
     30 
     31   // BrowserContextKeyedServiceFactory implementation:
     32   virtual KeyedService* BuildServiceInstanceFor(
     33       content::BrowserContext* context) const OVERRIDE;
     34   virtual content::BrowserContext* GetBrowserContextToUse(
     35       content::BrowserContext* context) const OVERRIDE;
     36 
     37   DISALLOW_COPY_AND_ASSIGN(ExtensionRegistryFactory);
     38 };
     39 
     40 }  // namespace extensions
     41 
     42 #endif  // EXTENSIONS_BROWSER_EXTENSION_REGISTRY_FACTORY_H_
     43