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

chrome/browser/safe_browsing/incident_reporting/last_download_finder_unittest.cc

Index: chrome/browser/safe_browsing/incident_reporting/last_download_finder_unittest.cc
diff --git a/chrome/browser/safe_browsing/incident_reporting/last_download_finder_unittest.cc b/chrome/browser/safe_browsing/incident_reporting/last_download_finder_unittest.cc
index c9d2f8ad7244091b97a86a05a5976a51924106e2..e1285114b88fd24e9f98c9de5301774adc97f670 100644
--- a/chrome/browser/safe_browsing/incident_reporting/last_download_finder_unittest.cc
+++ b/chrome/browser/safe_browsing/incident_reporting/last_download_finder_unittest.cc
@@ -10,6 +10,7 @@
 #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"
@@ -42,7 +43,7 @@ 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.
@@ -52,21 +53,21 @@ KeyedService* BuildHistoryService(content::BrowserContext* context) {
       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