Add a partial Mojo serial connection interface and implementation.

device/serial/test_serial_io_handler.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_TEST_SERIAL_IO_HANDLER_H_
+#define DEVICE_SERIAL_TEST_SERIAL_IO_HANDLER_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "device/serial/serial.mojom.h"
+#include "device/serial/serial_io_handler.h"
+
+namespace device {
+
+class TestSerialIoHandler : public SerialIoHandler {
+ public:
+  TestSerialIoHandler();
+
+  static scoped_refptr<SerialIoHandler> Create();
+
+  // SerialIoHandler overrides.
+  virtual void Open(const std::string& port,
+                    const OpenCompleteCallback& callback) OVERRIDE;
+  virtual bool ConfigurePort(const serial::ConnectionOptions& options) OVERRIDE;
+  virtual void ReadImpl() OVERRIDE;
+  virtual void CancelReadImpl() OVERRIDE;
+  virtual void WriteImpl() OVERRIDE;
+  virtual void CancelWriteImpl() OVERRIDE;
+  virtual serial::DeviceControlSignalsPtr GetControlSignals() const OVERRIDE;
+  virtual serial::ConnectionInfoPtr GetPortInfo() const OVERRIDE;
+  virtual bool Flush() const OVERRIDE;
+  virtual bool SetControlSignals(
+      const serial::HostControlSignals& signals) OVERRIDE;
+
+  serial::ConnectionInfo* connection_info() { return &info_; }
+  serial::DeviceControlSignals* device_control_signals() {
+    return &device_control_signals_;
+  }
+  bool dtr() { return dtr_; }
+  bool rts() { return rts_; }
+  int flushes() { return flushes_; }
+
+ protected:
+  virtual ~TestSerialIoHandler();
+
+ private:
+  bool opened_;
+  serial::ConnectionInfo info_;
+  serial::DeviceControlSignals device_control_signals_;
+  bool dtr_;
+  bool rts_;
+  mutable int flushes_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestSerialIoHandler);
+};
+
+}  // namespace device
+
+#endif  // DEVICE_SERIAL_TEST_SERIAL_IO_HANDLER_H_