Implement BrowserStateKeyedServiceFactory::GetAssociatedPrefRegistry()

components/keyed_service/content/browser_context_keyed_service_factory.cc

 // 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.
 
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
 
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ skipping 82 matching lines @@
 }
 
 bool BrowserContextKeyedServiceFactory::IsOffTheRecord(
     base::SupportsUserData* context) const {
   return static_cast<content::BrowserContext*>(context)->IsOffTheRecord();
 }
 
 user_prefs::PrefRegistrySyncable*
 BrowserContextKeyedServiceFactory::GetAssociatedPrefRegistry(
     base::SupportsUserData* context) const {
-  PrefService* prefs = user_prefs::UserPrefs::Get(
-      static_cast<content::BrowserContext*>(context));
+  PrefService* prefs = user_prefs::UserPrefs::Get(context);
   user_prefs::PrefRegistrySyncable* registry =
       static_cast<user_prefs::PrefRegistrySyncable*>(
           prefs->DeprecatedGetPrefRegistry());
   return registry;
 }
 
 base::SupportsUserData* BrowserContextKeyedServiceFactory::GetContextToUse(
     base::SupportsUserData* context) const {
   return GetBrowserContextToUse(static_cast<content::BrowserContext*>(context));
 }
 
 bool BrowserContextKeyedServiceFactory::ServiceIsCreatedWithContext() const {
   return ServiceIsCreatedWithBrowserContext();
 }
 
 void BrowserContextKeyedServiceFactory::ContextShutdown(
     base::SupportsUserData* context) {
   BrowserContextShutdown(static_cast<content::BrowserContext*>(context));
 }
 
 void BrowserContextKeyedServiceFactory::ContextDestroyed(
     base::SupportsUserData* context) {
   BrowserContextDestroyed(static_cast<content::BrowserContext*>(context));
 }
 
 void BrowserContextKeyedServiceFactory::RegisterPrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   RegisterProfilePrefs(registry);
 }