Make Dispatcher::Type an enum class.

mojo/edk/system/data_pipe_producer_dispatcher.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 "mojo/edk/system/data_pipe_producer_dispatcher.h"
 
 #include "base/logging.h"
 #include "mojo/edk/system/data_pipe.h"
 #include "mojo/edk/system/memory.h"
 
 namespace mojo {
 namespace system {
 
 DataPipeProducerDispatcher::DataPipeProducerDispatcher() {
 }
 
 void DataPipeProducerDispatcher::Init(scoped_refptr<DataPipe> data_pipe) {
   DCHECK(data_pipe);
   data_pipe_ = data_pipe;
 }
 
 Dispatcher::Type DataPipeProducerDispatcher::GetType() const {
-  return kTypeDataPipeProducer;
+  return Type::DATA_PIPE_PRODUCER;
 }
 
 // static
 scoped_refptr<DataPipeProducerDispatcher>
 DataPipeProducerDispatcher::Deserialize(Channel* channel,
                                         const void* source,
                                         size_t size) {
   scoped_refptr<DataPipe> data_pipe;
   if (!DataPipe::ProducerDeserialize(channel, source, size, &data_pipe))
     return nullptr;
@@ skipping 102 matching lines @@
   return rv;
 }
 
 bool DataPipeProducerDispatcher::IsBusyNoLock() const {
   lock().AssertAcquired();
   return data_pipe_->ProducerIsBusy();
 }
 
 }  // namespace system
 }  // namespace mojo