Remove base::Value::CreateNullValue

mojo/common/values_struct_traits.cc

 // Copyright 2016 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 "base/memory/ptr_util.h"
 #include "mojo/common/values_struct_traits.h"
 
 namespace mojo {
 
 bool StructTraits<common::mojom::ListValueDataView,
@@ skipping 40 matching lines @@
   auto result = base::MakeUnique<base::DictionaryValue>();
   result->MergeDictionary(input.get());
   return result;
 }
 
 bool UnionTraits<common::mojom::ValueDataView, std::unique_ptr<base::Value>>::
     Read(common::mojom::ValueDataView data,
          std::unique_ptr<base::Value>* value_out) {
   switch (data.tag()) {
     case common::mojom::ValueDataView::Tag::NULL_VALUE: {
-      *value_out = base::Value::CreateNullValue();
+      *value_out = base::MakeUnique<base::Value>();
       return true;
     }
     case common::mojom::ValueDataView::Tag::BOOL_VALUE: {
       *value_out = base::MakeUnique<base::Value>(data.bool_value());
       return true;
     }
     case common::mojom::ValueDataView::Tag::INT_VALUE: {
       *value_out = base::MakeUnique<base::Value>(data.int_value());
       return true;
     }
@@ skipping 28 matching lines @@
       if (!data.ReadListValue(&list_value))
         return false;
       *value_out = std::move(list_value);
       return true;
     }
   }
   return false;
 }
 
 }  // namespace mojo