extensions/shell/browser/shell_extension_system_factory.h

   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_SHELL_BROWSER_SHELL_EXTENSION_SYSTEM_FACTORY_H_
   6 #define EXTENSIONS_SHELL_BROWSER_SHELL_EXTENSION_SYSTEM_FACTORY_H_
   7
   8 #include "base/memory/singleton.h"
   9 #include "extensions/browser/extension_system_provider.h"
  10
  11 namespace extensions {
  12
  13 // A factory that provides ShellExtensionSystem for app_shell.
  14 class ShellExtensionSystemFactory : public ExtensionSystemProvider {
  15  public:
  16   // ExtensionSystemProvider implementation:
  17   ExtensionSystem* GetForBrowserContext(
  18       content::BrowserContext* context) override;
  19
  20   static ShellExtensionSystemFactory* GetInstance();
  21
  22  private:
  23   friend struct base::DefaultSingletonTraits<ShellExtensionSystemFactory>;
  24
  25   ShellExtensionSystemFactory();
  26   ~ShellExtensionSystemFactory() override;
  27
  28   // BrowserContextKeyedServiceFactory implementation:
  29   KeyedService* BuildServiceInstanceFor(
  30       content::BrowserContext* context) const override;
  31   content::BrowserContext* GetBrowserContextToUse(
  32       content::BrowserContext* context) const override;
  33   bool ServiceIsCreatedWithBrowserContext() const override;
  34
  35   DISALLOW_COPY_AND_ASSIGN(ShellExtensionSystemFactory);
  36 };
  37
  38 }  // namespace extensions
  39
  40 #endif  // EXTENSIONS_SHELL_BROWSER_SHELL_EXTENSION_SYSTEM_FACTORY_H_