[Cleanup] Used scoped pointers in KeyedServiceFactory's SetTestingFactory functions.

extensions/browser/extension_prefs_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 "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "content/public/browser/browser_context.h"
 #include "extensions/browser/extension_pref_value_map.h"
 #include "extensions/browser/extension_pref_value_map_factory.h"
@@ skipping 10 matching lines @@
   return static_cast<ExtensionPrefs*>(
       GetInstance()->GetServiceForBrowserContext(context, true));
 }
 
 // static
 ExtensionPrefsFactory* ExtensionPrefsFactory::GetInstance() {
   return Singleton<ExtensionPrefsFactory>::get();
 }
 
 void ExtensionPrefsFactory::SetInstanceForTesting(
-    content::BrowserContext* context, ExtensionPrefs* prefs) {
-  Associate(context, prefs);
+    content::BrowserContext* context,
+    scoped_ptr<ExtensionPrefs> prefs) {
+  Associate(context, prefs.Pass());
 }
 
 ExtensionPrefsFactory::ExtensionPrefsFactory()
     : BrowserContextKeyedServiceFactory(
           "ExtensionPrefs",
           BrowserContextDependencyManager::GetInstance()) {
 }
 
 ExtensionPrefsFactory::~ExtensionPrefsFactory() {
 }
@@ skipping 12 matching lines @@
                                     context),
       prefs_observers);
 }
 
 content::BrowserContext* ExtensionPrefsFactory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
 }
 
 }  // namespace extensions