Remove raw DictionaryValue::Set in //chrome

chrome/browser/supervised_user/legacy/supervised_user_sync_service_unittest.cc

Index: chrome/browser/supervised_user/legacy/supervised_user_sync_service_unittest.cc
diff --git a/chrome/browser/supervised_user/legacy/supervised_user_sync_service_unittest.cc b/chrome/browser/supervised_user/legacy/supervised_user_sync_service_unittest.cc
index 88a7e52007c5e17555cb109bdc232acbb87fed24..7053973410bb5c5556461e78ae3bccfb890ddd0a 100644
--- a/chrome/browser/supervised_user/legacy/supervised_user_sync_service_unittest.cc
+++ b/chrome/browser/supervised_user/legacy/supervised_user_sync_service_unittest.cc
@@ -5,11 +5,14 @@
 #include <stdint.h>
 
 #include <string>
+#include <utility>
 
 #include "base/bind.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
+#include "base/values.h"
 #include "build/build_config.h"
 #include "chrome/browser/supervised_user/legacy/supervised_user_sync_service.h"
 #include "chrome/browser/supervised_user/legacy/supervised_user_sync_service_factory.h"
@@ -195,13 +198,13 @@ TEST_F(SupervisedUserSyncServiceTest, MergeExisting) {
   {
     DictionaryPrefUpdate update(prefs(), prefs::kSupervisedUsers);
     base::DictionaryValue* supervised_users = update.Get();
-    base::DictionaryValue* dict = new base::DictionaryValue;
+    auto dict = base::MakeUnique<base::DictionaryValue>();
     dict->SetString(kNameKey, kName1);
-    supervised_users->Set(kUserId1, dict);
-    dict = new base::DictionaryValue;
+    supervised_users->Set(kUserId1, std::move(dict));
+    dict = base::MakeUnique<base::DictionaryValue>();
     dict->SetString(kNameKey, kName2);
     dict->SetBoolean(kAcknowledgedKey, true);
-    supervised_users->Set(kUserId2, dict);
+    supervised_users->Set(kUserId2, std::move(dict));
   }
 
   const base::DictionaryValue* async_supervised_users = NULL;