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

extensions/browser/extension_function.cc

 // Copyright 2013 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 "extensions/browser/extension_function.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 404 matching lines @@
   }
   return Run();
 }
 
 bool ExtensionFunction::ShouldSkipQuotaLimiting() const {
   return false;
 }
 
 bool ExtensionFunction::HasOptionalArgument(size_t index) {
   base::Value* value;
-  return args_->Get(index, &value) && !value->IsType(base::Value::TYPE_NULL);
+  return args_->Get(index, &value) && !value->IsType(base::Value::Type::NONE);
 }
 
 void ExtensionFunction::SendResponseImpl(bool success) {
   DCHECK(!response_callback_.is_null());
   DCHECK(!did_respond_) << name_;
   did_respond_ = true;
 
   ResponseType response = success ? SUCCEEDED : FAILED;
   if (bad_message_) {
     response = BAD_MESSAGE;
@@ skipping 180 matching lines @@
 void AsyncExtensionFunction::SendResponse(bool success) {
   ResponseValue response;
   if (success) {
     response = ArgumentList(std::move(results_));
   } else {
     response = results_ ? ErrorWithArguments(std::move(results_), error_)
                         : Error(error_);
   }
   Respond(std::move(response));
 }