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

chrome/browser/extensions/api/hotword_private/hotword_private_apitest.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/memory/scoped_ptr.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/api/hotword_private/hotword_private_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/history/web_history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/hotword_audio_history_handler.h"
 #include "chrome/browser/search/hotword_client.h"
 #include "chrome/browser/search/hotword_service.h"
 #include "chrome/browser/search/hotword_service_factory.h"
@@ skipping 75 matching lines @@
   explicit MockHotwordService(Profile* profile)
       : HotwordService(profile), service_available_(true) {}
   ~MockHotwordService() override {}
 
   bool IsServiceAvailable() override { return service_available_; }
 
   void setServiceAvailable(bool available) {
     service_available_ = available;
   }
 
-  static KeyedService* Build(content::BrowserContext* profile) {
-    return new MockHotwordService(static_cast<Profile*>(profile));
+  static scoped_ptr<KeyedService> Build(content::BrowserContext* profile) {
+    return make_scoped_ptr(
+        new MockHotwordService(static_cast<Profile*>(profile)));
   }
 
   LaunchMode GetHotwordAudioVerificationLaunchMode() override {
     return launch_mode_;
   }
 
   void SetHotwordAudioVerificationLaunchMode(const LaunchMode& launch_mode) {
     launch_mode_ = launch_mode;
   }
 
@@ skipping 412 matching lines @@
   ExtensionTestMessageListener setListenerT("set AH: false failure", false);
   ExtensionTestMessageListener setListenerF("set AH: false failure", false);
   ExtensionTestMessageListener getListener("get AH: false failure", false);
 
   ASSERT_TRUE(RunComponentExtensionTest("audioHistory")) << message_;
 
   EXPECT_TRUE(setListenerT.WaitUntilSatisfied());
   EXPECT_TRUE(setListenerF.WaitUntilSatisfied());
   EXPECT_TRUE(getListener.WaitUntilSatisfied());
 }