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

extensions/browser/api/idle/idle_api_unittest.cc

 // Copyright (c) 2012 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 "extensions/browser/api/idle/idle_api.h"
 
 #include <limits.h>
 #include <string>
 
+#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "extensions/browser/api/idle/idle_api_constants.h"
 #include "extensions/browser/api/idle/idle_manager_factory.h"
 #include "extensions/browser/api/idle/idle_manager.h"
 #include "extensions/browser/api_unittest.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/api/idle.h"
 #include "extensions/common/extension.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 84 matching lines @@
                                   extension_id_, GURL(), NULL);
   idle_manager_->OnListenerAdded(details);
 }
 
 ScopedListen::~ScopedListen() {
   const EventListenerInfo details(idle::OnStateChanged::kEventName,
                                   extension_id_, GURL(), NULL);
   idle_manager_->OnListenerRemoved(details);
 }
 
-KeyedService* IdleManagerTestFactory(content::BrowserContext* context) {
-  return new IdleManager(context);
+scoped_ptr<KeyedService> IdleManagerTestFactory(
+    content::BrowserContext* context) {
+  return make_scoped_ptr(new IdleManager(context));
 }
 
 }  // namespace
 
 class IdleTest : public ApiUnitTest {
  public:
   void SetUp() override;
 
  protected:
   IdleManager* idle_manager_;
@@ skipping 419 matching lines @@
 
   {
     // Nothing should have fired, the listener wasn't added until afterward.
     ScopedListen listen(idle_manager_, "test");
     idle_manager_->UpdateIdleState();
     testing::Mock::VerifyAndClearExpectations(event_delegate_);
   }
 }
 
 }  // namespace extensions