Change mojo enums to be scoped enums in the generated C++ bindings.

device/serial/test_serial_io_handler.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 "device/serial/test_serial_io_handler.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 27 matching lines @@
 void TestSerialIoHandler::ReadImpl() {
   if (!pending_read_buffer())
     return;
   if (buffer_.empty())
     return;
 
   size_t num_bytes =
       std::min(buffer_.size(), static_cast<size_t>(pending_read_buffer_len()));
   memcpy(pending_read_buffer(), buffer_.c_str(), num_bytes);
   buffer_ = buffer_.substr(num_bytes);
-  ReadCompleted(static_cast<uint32_t>(num_bytes), serial::RECEIVE_ERROR_NONE);
+  ReadCompleted(static_cast<uint32_t>(num_bytes), serial::ReceiveError::NONE);
 }
 
 void TestSerialIoHandler::CancelReadImpl() {
   ReadCompleted(0, read_cancel_reason());
 }
 
 void TestSerialIoHandler::WriteImpl() {
   if (!send_callback_.is_null()) {
     base::Closure callback = send_callback_;
     send_callback_.Reset();
     callback.Run();
     return;
   }
   buffer_ += std::string(pending_write_buffer(), pending_write_buffer_len());
-  WriteCompleted(pending_write_buffer_len(), serial::SEND_ERROR_NONE);
+  WriteCompleted(pending_write_buffer_len(), serial::SendError::NONE);
   if (pending_read_buffer())
     ReadImpl();
 }
 
 void TestSerialIoHandler::CancelWriteImpl() {
   WriteCompleted(0, write_cancel_reason());
 }
 
 bool TestSerialIoHandler::ConfigurePortImpl() {
   info_.bitrate = options().bitrate;
@@ skipping 35 matching lines @@
 }
 
 bool TestSerialIoHandler::ClearBreak() {
   return true;
 }
 
 TestSerialIoHandler::~TestSerialIoHandler() {
 }
 
 }  // namespace device