Remove base::Value::CreateNullValue

components/policy/core/common/mac_util_unittest.cc

Index: components/policy/core/common/mac_util_unittest.cc
diff --git a/components/policy/core/common/mac_util_unittest.cc b/components/policy/core/common/mac_util_unittest.cc
index b96e298b41f377e597fbfd4019b4f7140669245a..c25610b0a32ed14fb01f6bc13039e393df317d5f 100644
--- a/components/policy/core/common/mac_util_unittest.cc
+++ b/components/policy/core/common/mac_util_unittest.cc
@@ -9,6 +9,7 @@
 #include <memory>
 
 #include "base/mac/scoped_cftyperef.h"
+#include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "components/policy/core/common/policy_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -19,7 +20,7 @@ TEST(PolicyMacUtilTest, PropertyToValue) {
   base::DictionaryValue root;
 
   // base::Value::Type::NONE
-  root.Set("null", base::Value::CreateNullValue());
+  root.Set("null", base::MakeUnique<base::Value>());
 
   // base::Value::Type::BOOLEAN
   root.SetBoolean("false", false);