Remove base::Value::CreateNullValue

base/values.cc

 // Copyright (c) 2012 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/values.h"
 
 #include <string.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 58 matching lines @@
           static_cast<const DictionaryValue&>(node));
 
     default:
       return MakeUnique<Value>(node);
   }
 }
 
 }  // namespace
 
 // static
-std::unique_ptr<Value> Value::CreateNullValue() {
-  return WrapUnique(new Value(Type::NONE));
-}
-
-// static
 std::unique_ptr<BinaryValue> BinaryValue::CreateWithCopiedBuffer(
     const char* buffer,
     size_t size) {
   return MakeUnique<BinaryValue>(std::vector<char>(buffer, buffer + size));
 }
 
 Value::Value(const Value& that) {
   InternalCopyConstructFrom(that);
 }
 
@@ skipping 990 matching lines @@
   return Set(index, WrapUnique(in_value));
 }
 
 bool ListValue::Set(size_t index, std::unique_ptr<Value> in_value) {
   if (!in_value)
     return false;
 
   if (index >= list_->size()) {
     // Pad out any intermediate indexes with null settings
     while (index > list_->size())
-      Append(CreateNullValue());
+      Append(MakeUnique<Value>());
     Append(std::move(in_value));
   } else {
     // TODO(dcheng): remove this DCHECK once the raw pointer version is removed?
     DCHECK((*list_)[index] != in_value);
     (*list_)[index] = std::move(in_value);
   }
   return true;
 }
 
 bool ListValue::Get(size_t index, const Value** out_value) const {
@@ skipping 237 matching lines @@
 }
 
 std::ostream& operator<<(std::ostream& out, const Value::Type& type) {
   if (static_cast<int>(type) < 0 ||
       static_cast<size_t>(type) >= arraysize(kTypeNames))
     return out << "Invalid Type (index = " << static_cast<int>(type) << ")";
   return out << Value::GetTypeName(type);
 }
 
 }  // namespace base