Add a partial Mojo serial connection interface and implementation.

device/serial/serial_connection.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/serial_connection.h"
+
+#include "device/serial/serial_io_handler.h"
+
+namespace device {
+
+SerialConnection::SerialConnection(scoped_refptr<SerialIoHandler> io_handler)
+    : io_handler_(io_handler) {
+  // TODO(sammc): Call io_handler_->Initialize() once we support send and recv.
+}
+
+SerialConnection::~SerialConnection() {
+}
+
+void SerialConnection::GetInfo(
+    const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback) {
+  callback.Run(io_handler_->GetPortInfo());
+}
+
+void SerialConnection::SetOptions(serial::ConnectionOptionsPtr options,
+                                  const mojo::Callback<void(bool)>& callback) {
+  callback.Run(io_handler_->ConfigurePort(*options));
+  io_handler_->CancelRead(device::serial::RECEIVE_ERROR_NONE);
+}
+
+void SerialConnection::SetControlSignals(
+    serial::HostControlSignalsPtr signals,
+    const mojo::Callback<void(bool)>& callback) {
+  callback.Run(io_handler_->SetControlSignals(*signals));
+}
+
+void SerialConnection::GetControlSignals(
+    const mojo::Callback<void(serial::DeviceControlSignalsPtr)>& callback) {
+  callback.Run(io_handler_->GetControlSignals());
+}
+
+void SerialConnection::Flush(const mojo::Callback<void(bool)>& callback) {
+  callback.Run(io_handler_->Flush());
+}
+
+void SerialConnection::OnConnectionError() {
+  delete this;
+}
+
+}  // namespace device