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

chrome/browser/policy/cloud/user_policy_signin_service_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 "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_service.h"
 #include "base/run_loop.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/policy/cloud/user_cloud_policy_manager_factory.h"
 #include "chrome/browser/policy/cloud/user_policy_signin_service_factory.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 72 matching lines @@
       : FakeSigninManager(profile) {
     Initialize(NULL);
   }
 
   void ForceSignOut() {
     // Allow signing out now.
     prohibit_signout_ = false;
     SignOut(signin_metrics::SIGNOUT_TEST);
   }
 
-  static KeyedService* Build(content::BrowserContext* profile) {
-    return new SigninManagerFake(static_cast<Profile*>(profile));
+  static scoped_ptr<KeyedService> Build(content::BrowserContext* profile) {
+    return make_scoped_ptr(
+        new SigninManagerFake(static_cast<Profile*>(profile)));
   }
 };
 
 UserCloudPolicyManager* BuildCloudPolicyManager(
     content::BrowserContext* context) {
   MockUserCloudPolicyStore* store = new MockUserCloudPolicyStore();
   EXPECT_CALL(*store, Load()).Times(AnyNumber());
 
   return new UserCloudPolicyManager(
       scoped_ptr<UserCloudPolicyStore>(store),
@@ skipping 720 matching lines @@
   base::RunLoop().RunUntilIdle();
   EXPECT_FALSE(manager_->IsClientRegistered());
 #if !defined(OS_ANDROID)
   EXPECT_FALSE(signin_manager_->IsSignoutProhibited());
 #endif
 }
 
 }  // namespace
 
 }  // namespace policy