Remove base::Value::CreateNullValue

ipc/ipc_message_utils_unittest.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 "ipc/ipc_message_utils.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <memory>
 
 #include "base/files/file_path.h"
 #include "base/json/json_reader.h"
+#include "base/memory/ptr_util.h"
 #include "base/unguessable_token.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace IPC {
 namespace {
 
 // Tests nesting of messages as parameters to other messages.
 TEST(IPCMessageUtilsTest, NestedMessages) {
@@ skipping 70 matching lines @@
   for (size_t i = 0; i < 2 * stack_capacity; i++)
     EXPECT_EQ(stack_vector[i], output[i]);
 }
 
 // Tests that PickleSizer and Pickle agree on the size of a complex base::Value.
 TEST(IPCMessageUtilsTest, ValueSize) {
   std::unique_ptr<base::DictionaryValue> value(new base::DictionaryValue);
   value->SetWithoutPathExpansion("foo", new base::Value(42));
   value->SetWithoutPathExpansion("bar", new base::Value(3.14));
   value->SetWithoutPathExpansion("baz", new base::Value("hello"));
-  value->SetWithoutPathExpansion("qux", base::Value::CreateNullValue());
+  value->SetWithoutPathExpansion("qux", base::MakeUnique<base::Value>());
 
   std::unique_ptr<base::DictionaryValue> nested_dict(new base::DictionaryValue);
   nested_dict->SetWithoutPathExpansion("foobar", new base::Value(5));
   value->SetWithoutPathExpansion("nested", std::move(nested_dict));
 
   std::unique_ptr<base::ListValue> list_value(new base::ListValue);
   list_value->AppendString("im a string");
   list_value->AppendString("im another string");
   value->SetWithoutPathExpansion("awesome-list", std::move(list_value));
 
@@ skipping 95 matching lines @@
   EXPECT_EQ(token.ToString(), log);
 
   base::UnguessableToken deserialized_token;
   base::PickleIterator iter(pickle);
   EXPECT_TRUE(IPC::ReadParam(&pickle, &iter, &deserialized_token));
   EXPECT_EQ(token, deserialized_token);
 }
 
 }  // namespace
 }  // namespace IPC