e95673b052
refactor: prefer using base::NoDestructor to base::{Singleton,LazyInstance}
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
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#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
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#include "extensions/browser/extension_system_provider.h"
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namespace base {
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template <typename T>
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class NoDestructor;
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} // namespace base
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namespace extensions {
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// A factory that provides ElectronExtensionSystem.
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class ElectronExtensionSystemFactory : public ExtensionSystemProvider {
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public:
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// ExtensionSystemProvider implementation:
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ExtensionSystem* GetForBrowserContext(
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content::BrowserContext* context) override;
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static ElectronExtensionSystemFactory* GetInstance();
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// disable copy
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ElectronExtensionSystemFactory(const ElectronExtensionSystemFactory&) =
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delete;
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ElectronExtensionSystemFactory& operator=(
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const ElectronExtensionSystemFactory&) = delete;
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private:
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friend base::NoDestructor<ElectronExtensionSystemFactory>;
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ElectronExtensionSystemFactory();
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~ElectronExtensionSystemFactory() override;
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// BrowserContextKeyedServiceFactory implementation:
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KeyedService* BuildServiceInstanceFor(
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content::BrowserContext* context) const override;
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content::BrowserContext* GetBrowserContextToUse(
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content::BrowserContext* context) const override;
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bool ServiceIsCreatedWithBrowserContext() const override;
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};
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} // namespace extensions
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#endif // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
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