Make base::Value::TYPE a scoped enum.

base/json/json_parser_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 "base/json/json_parser.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 106 matching lines @@
 
   // Literal |null|.
   input = "null,|";
   parser.reset(NewTestParser(input));
   value = parser->ConsumeLiteral();
   EXPECT_EQ('l', *parser->pos_);
 
   TestLastThree(parser.get());
 
   ASSERT_TRUE(value.get());
-  EXPECT_TRUE(value->IsType(Value::TYPE_NULL));
+  EXPECT_TRUE(value->IsType(Value::Type::NONE));
 }
 
 TEST_F(JSONParserTest, ConsumeNumbers) {
   // Integer.
   std::string input("1234,|");
   std::unique_ptr<JSONParser> parser(NewTestParser(input));
   std::unique_ptr<Value> value(parser->ConsumeNumber());
   EXPECT_EQ('4', *parser->pos_);
 
   TestLastThree(parser.get());
@@ skipping 199 matching lines @@
       NewTestParser(quoted_bogus_char, JSON_REPLACE_INVALID_CHARACTERS));
   std::unique_ptr<Value> value(parser->ConsumeString());
   ASSERT_TRUE(value.get());
   std::string str;
   EXPECT_TRUE(value->GetAsString(&str));
   EXPECT_EQ(kUnicodeReplacementString, str);
 }
 
 }  // namespace internal
 }  // namespace base