Add a partial Mojo serial connection interface and implementation.

device/serial/serial_connection.h

+// 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.
+
+#ifndef DEVICE_SERIAL_SERIAL_CONNECTION_H_
+#define DEVICE_SERIAL_SERIAL_CONNECTION_H_
+
+#include "base/memory/ref_counted.h"
+#include "device/serial/serial.mojom.h"
+#include "mojo/public/cpp/bindings/interface_impl.h"
+
+namespace device {
+
+class SerialIoHandler;
+
+class SerialConnection : public mojo::InterfaceImpl<serial::Connection> {
+ public:
+  explicit SerialConnection(scoped_refptr<SerialIoHandler> io_handler);
+  virtual ~SerialConnection();
+
+  // mojo::InterfaceImpl<serial::Connection> overrides.
+  virtual void GetInfo(
+      const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback) OVERRIDE;
+  virtual void SetOptions(serial::ConnectionOptionsPtr options,
+                          const mojo::Callback<void(bool)>& callback) OVERRIDE;
+  virtual void SetControlSignals(
+      serial::HostControlSignalsPtr signals,
+      const mojo::Callback<void(bool)>& callback) OVERRIDE;
+  virtual void GetControlSignals(const mojo::Callback<
+      void(serial::DeviceControlSignalsPtr)>& callback) OVERRIDE;
+  virtual void Flush(const mojo::Callback<void(bool)>& callback) OVERRIDE;
+  virtual void OnConnectionError() OVERRIDE;
+
+ private:
+  scoped_refptr<SerialIoHandler> io_handler_;
+
+  DISALLOW_COPY_AND_ASSIGN(SerialConnection);
+};
+
+}  // namespace device
+
+#endif  // DEVICE_SERIAL_SERIAL_CONNECTION_H_