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

chrome/browser/safe_browsing/incident_reporting/last_download_finder_unittest.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 "chrome/browser/safe_browsing/incident_reporting/last_download_finder.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_util.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/history/chrome_history_client.h"
 #include "chrome/browser/history/chrome_history_client_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/history/web_history_service_factory.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/common/chrome_constants.h"
@@ skipping 12 matching lines @@
 #include "components/history/core/browser/history_database_params.h"
 #include "components/history/core/browser/history_service.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 // A BrowserContextKeyedServiceFactory::TestingFactoryFunction that creates a
 // HistoryService for a TestingProfile.
-KeyedService* BuildHistoryService(content::BrowserContext* context) {
+scoped_ptr<KeyedService> BuildHistoryService(content::BrowserContext* context) {
   TestingProfile* profile = static_cast<TestingProfile*>(context);
 
   // Delete the file before creating the service.
   base::FilePath history_path(
       profile->GetPath().Append(history::kHistoryFilename));
   if (!base::DeleteFile(history_path, false) ||
       base::PathExists(history_path)) {
     ADD_FAILURE() << "failed to delete history db file "
                   << history_path.value();
-    return NULL;
+    return nullptr;
   }
 
-  history::HistoryService* history_service = new history::HistoryService(
-      ChromeHistoryClientFactory::GetForProfile(profile),
-      scoped_ptr<history::VisitDelegate>());
+  scoped_ptr<history::HistoryService> history_service(
+      new history::HistoryService(
+          ChromeHistoryClientFactory::GetForProfile(profile),
+          scoped_ptr<history::VisitDelegate>()));
   if (history_service->Init(
           profile->GetPrefs()->GetString(prefs::kAcceptLanguages),
           history::HistoryDatabaseParamsForPath(profile->GetPath()))) {
-    return history_service;
+    return history_service.Pass();
   }
 
   ADD_FAILURE() << "failed to initialize history service";
-  delete history_service;
-  return NULL;
+  return nullptr;
 }
 
 }  // namespace
 
 namespace safe_browsing {
 
 class LastDownloadFinderTest : public testing::Test {
  public:
   void NeverCalled(scoped_ptr<ClientIncidentReport_DownloadDetails> download) {
     FAIL();
@@ skipping 267 matching lines @@
                  base::Unretained(this),
                  &last_download,
                  run_loop.QuitClosure())));
 
   run_loop.Run();
 
   ExpectFoundTestDownload(last_download.Pass());
 }
 
 }  // namespace safe_browsing