Remove base::Value::CreateNullValue

tools/json_schema_compiler/test/simple_api_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 "tools/json_schema_compiler/test/simple_api.h"
 
+#include "base/memory/ptr_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using namespace test::api::simple_api;
 
 namespace {
 
 static std::unique_ptr<base::DictionaryValue> CreateTestTypeDictionary() {
   std::unique_ptr<base::DictionaryValue> value(new base::DictionaryValue());
   value->SetWithoutPathExpansion("number", new base::Value(1.1));
   value->SetWithoutPathExpansion("integer", new base::Value(4));
@@ skipping 53 matching lines @@
         OptionalString::Params::Create(*params_value));
     EXPECT_TRUE(params.get());
     EXPECT_TRUE(params->str.get());
     EXPECT_EQ("asdf", *params->str);
   }
 }
 
 TEST(JsonSchemaCompilerSimpleTest, OptionalParamsTakingNull) {
   {
     std::unique_ptr<base::ListValue> params_value(new base::ListValue());
-    params_value->Append(base::Value::CreateNullValue());
+    params_value->Append(base::MakeUnique<base::Value>());
     std::unique_ptr<OptionalString::Params> params(
         OptionalString::Params::Create(*params_value));
     EXPECT_TRUE(params.get());
     EXPECT_FALSE(params->str.get());
   }
 }
 
 TEST(JsonSchemaCompilerSimpleTest, OptionalStringParamsWrongType) {
   {
     std::unique_ptr<base::ListValue> params_value(new base::ListValue());
     params_value->AppendInteger(5);
     std::unique_ptr<OptionalString::Params> params(
         OptionalString::Params::Create(*params_value));
     EXPECT_FALSE(params.get());
   }
 }
 
 TEST(JsonSchemaCompilerSimpleTest, OptionalBeforeRequired) {
   {
     std::unique_ptr<base::ListValue> params_value(new base::ListValue());
-    params_value->Append(base::Value::CreateNullValue());
+    params_value->Append(base::MakeUnique<base::Value>());
     params_value->AppendString("asdf");
     std::unique_ptr<OptionalBeforeRequired::Params> params(
         OptionalBeforeRequired::Params::Create(*params_value));
     EXPECT_TRUE(params.get());
     EXPECT_FALSE(params->first.get());
     EXPECT_EQ("asdf", params->second);
   }
 }
 
 TEST(JsonSchemaCompilerSimpleTest, NoParamsResultCreate) {
@@ skipping 63 matching lines @@
     ASSERT_TRUE(expected->GetInteger("integer", &some_test_type.integer));
     ASSERT_TRUE(expected->GetBoolean("boolean", &some_test_type.boolean));
 
     std::unique_ptr<base::ListValue> results(
         OnTestTypeFired::Create(some_test_type));
     base::DictionaryValue* result = NULL;
     results->GetDictionary(0, &result);
     EXPECT_TRUE(result->Equals(expected.get()));
   }
 }