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

chrome/browser/prefs/tracked/pref_hash_browsertest.cc

 // Copyright 2014 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 <memory>
 #include <string>
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 99 matching lines @@
     const base::FilePath& pref_file) {
   JSONFileValueDeserializer deserializer(pref_file);
   int error_code = JSONFileValueDeserializer::JSON_NO_ERROR;
   std::string error_str;
   std::unique_ptr<base::Value> prefs =
       deserializer.Deserialize(&error_code, &error_str);
   if (!prefs || error_code != JSONFileValueDeserializer::JSON_NO_ERROR) {
     ADD_FAILURE() << "Error #" << error_code << ": " << error_str;
     return std::unique_ptr<base::DictionaryValue>();
   }
-  if (!prefs->IsType(base::Value::TYPE_DICTIONARY)) {
+  if (!prefs->IsType(base::Value::Type::DICTIONARY)) {
     ADD_FAILURE();
     return std::unique_ptr<base::DictionaryValue>();
   }
   return std::unique_ptr<base::DictionaryValue>(
       static_cast<base::DictionaryValue*>(prefs.release()));
 }
 
 // Returns whether external validation is supported on the platform through
 // storing MACs in the registry.
 bool SupportsRegistryValidation() {
@@ skipping 1033 matching lines @@
                     user_prefs::tracked::kTrackedPrefHistogramChanged,
                     user_prefs::tracked::kTrackedPrefRegistryValidationSuffix,
                     BEGIN_ALLOW_SINGLE_BUCKET + 2));
     }
   }
 };
 
 PREF_HASH_BROWSER_TEST(PrefHashBrowserTestRegistryValidationFailure,
                        RegistryValidationFailure);
 #endif