Use udev for serial device enumeration on Linux

device/serial/serial_device_info.h

Index: device/serial/serial_device_info.h
diff --git a/device/serial/serial_device_info.h b/device/serial/serial_device_info.h
new file mode 100644
index 0000000000000000000000000000000000000000..49bd06cb29e40d6447af6db5b35f04670c515dd6
--- /dev/null
+++ b/device/serial/serial_device_info.h
@@ -0,0 +1,26 @@
+// Copyright (c) 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_DEVICE_INFO_H_
+#define DEVICE_SERIAL_SERIAL_DEVICE_INFO_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+
+namespace device {
+
+struct SerialDeviceInfo {
+  SerialDeviceInfo();
+  ~SerialDeviceInfo();
+
+  std::string path;
+  uint16 vendor_id;
+  uint16 product_id;
+  std::string display_name;
+};
+
+}  // namespace device
+
+#endif  // DEVICE_SERIAL_SERIAL_DEVICE_INFO_H_