Refactor (Refcounted)BrowserContextKeyedServiceFactory

components/keyed_service/content/browser_context_keyed_base_factory.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_KEYED_SERVICE_CONTENT_BROWSER_CONTEXT_KEYED_BASE_FACTORY_H_
 #define COMPONENTS_KEYED_SERVICE_CONTENT_BROWSER_CONTEXT_KEYED_BASE_FACTORY_H_
 
 #include "components/keyed_service/core/keyed_service_base_factory.h"
 #include "components/keyed_service/core/keyed_service_export.h"
 
 class BrowserContextDependencyManager;
 class PrefService;
 
 namespace content {
 class BrowserContext;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 // Base class for Factories that take a BrowserContext object and return some
 // service.
 //
 // Unless you're trying to make a new type of Factory, you probably don't want
 // this class, but its subclasses: BrowserContextKeyedServiceFactory and
 // RefcountedBrowserContextKeyedServiceFactory. This object describes general
 // dependency management between Factories; subclasses react to lifecycle
 // events and implement memory management.
+//
+// Note: this class is deprecated and should not be used and will be removed
+// once http://crbug.com/131843 and http://crbug.com/131844 are closed. If you
+// need to implement a new way to manage KeyedService lifetime, base your code
+// on KeyedServiceBaseFactory instead.
 class KEYED_SERVICE_EXPORT BrowserContextKeyedBaseFactory
     : public KeyedServiceBaseFactory {
  public:
   // Registers preferences used in this service on the pref service of
   // |context|. This is the public interface and is safe to be called multiple
   // times because testing code can have multiple services of the same type
   // attached to a single |context|. Only test code is allowed to call this
   // method.
   // TODO(gab): This method can be removed entirely when
   // PrefService::DeprecatedGetPrefRegistry() is phased out.
@@ skipping 69 matching lines @@
   virtual bool ServiceIsCreatedWithContext() const final;
   virtual void ContextShutdown(base::SupportsUserData* context) final;
   virtual void ContextDestroyed(base::SupportsUserData* context) final;
   virtual void RegisterPrefs(user_prefs::PrefRegistrySyncable* registry) final;
   virtual void SetEmptyTestingFactory(base::SupportsUserData* context) final;
   virtual bool HasTestingFactory(base::SupportsUserData* context) final;
   virtual void CreateServiceNow(base::SupportsUserData* context) final;
 };
 
 #endif  // COMPONENTS_KEYED_SERVICE_CONTENT_BROWSER_CONTEXT_KEYED_BASE_FACTORY_H_