Remove base::Value::CreateNullValue

components/policy/core/common/mac_util_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 "components/policy/core/common/mac_util.h"
 
 #include <CoreFoundation/CoreFoundation.h>
 
 #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"
 
 namespace policy {
 
 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);
   root.SetBoolean("true", true);
 
   // base::Value::Type::INTEGER
   root.SetInteger("int", 123);
   root.SetInteger("zero", 0);
 
   // base::Value::Type::DOUBLE
@@ skipping 20 matching lines @@
   root.Set("dict", root.DeepCopy());
 
   base::ScopedCFTypeRef<CFPropertyListRef> property(ValueToProperty(root));
   ASSERT_TRUE(property);
   std::unique_ptr<base::Value> value = PropertyToValue(property);
   ASSERT_TRUE(value);
   EXPECT_TRUE(root.Equals(value.get()));
 }
 
 }  // namespace policy