Remove base::Value::CreateNullValue

components/policy/core/common/mac_util.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 <string>
 #include <utility>
 
 #include "base/mac/foundation_util.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/values.h"
 
 using base::mac::CFCast;
 
 namespace policy {
 
 namespace {
 
 // Callback function for CFDictionaryApplyFunction. |key| and |value| are an
@@ skipping 18 matching lines @@
   std::unique_ptr<base::Value> converted =
       PropertyToValue(static_cast<CFPropertyListRef>(value));
   if (converted)
     static_cast<base::ListValue *>(context)->Append(converted.release());
 }
 
 }  // namespace
 
 std::unique_ptr<base::Value> PropertyToValue(CFPropertyListRef property) {
   if (CFCast<CFNullRef>(property))
-    return base::Value::CreateNullValue();
+    return base::MakeUnique<base::Value>();
 
   if (CFBooleanRef boolean = CFCast<CFBooleanRef>(property)) {
     return std::unique_ptr<base::Value>(
         new base::Value(static_cast<bool>(CFBooleanGetValue(boolean))));
   }
 
   if (CFNumberRef number = CFCast<CFNumberRef>(property)) {
     // CFNumberGetValue() converts values implicitly when the conversion is not
     // lossy. Check the type before trying to convert.
     if (CFNumberIsFloatType(number)) {
@@ skipping 27 matching lines @@
                          CFRangeMake(0, CFArrayGetCount(array)),
                          ArrayEntryToValue,
                          list_value.get());
     return std::move(list_value);
   }
 
   return nullptr;
 }
 
 }  // namespace policy