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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 EXTENSIONS_BROWSER_EXTENSION_SYSTEM_PROVIDER_H_
      6 #define EXTENSIONS_BROWSER_EXTENSION_SYSTEM_PROVIDER_H_
      7 
      8 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
      9 
     10 class BrowserContextDependencyManager;
     11 
     12 namespace content {
     13 class BrowserContext;
     14 }
     15 
     16 namespace extensions {
     17 class ExtensionSystem;
     18 
     19 // An ExtensionSystemProvider maps a BrowserContext to its ExtensionSystem.
     20 // Different applications may use this to provide differing implementations
     21 // of ExtensionSystem.
     22 // TODO(yoz): Rename to ExtensionSystemFactory.
     23 class ExtensionSystemProvider : public BrowserContextKeyedServiceFactory {
     24  public:
     25   ExtensionSystemProvider(const char* name,
     26                           BrowserContextDependencyManager* manager);
     27   virtual ~ExtensionSystemProvider();
     28 
     29   virtual ExtensionSystem* GetForBrowserContext(
     30       content::BrowserContext* context) = 0;
     31 };
     32 
     33 }  // namespace extensions
     34 
     35 #endif  // EXTENSIONS_BROWSER_EXTENSION_SYSTEM_PROVIDER_H_
     36