Use udev for serial device enumeration on Linux

device/serial/serial_device_enumerator_win.cc

Index: device/serial/serial_device_enumerator_win.cc
diff --git a/device/serial/serial_device_enumerator_win.cc b/device/serial/serial_device_enumerator_win.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e3bde29028202602c7e25aff23275318ddac4d95
--- /dev/null
+++ b/device/serial/serial_device_enumerator_win.cc
@@ -0,0 +1,42 @@
+// 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_device_enumerator_win.h"
+
+#include <windows.h>
+
+#include "base/memory/linked_ptr.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
+#include "base/win/registry.h"
+
+namespace device {
+
+// static
+scoped_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
+  return scoped_ptr<SerialDeviceEnumerator>(new SerialDeviceEnumeratorWin());
+}
+
+SerialDeviceEnumeratorWin::SerialDeviceEnumeratorWin() {}
+
+SerialDeviceEnumeratorWin::~SerialDeviceEnumeratorWin() {}
+
+// TODO(rockot): Query the system for more information than just device paths.
+// This may or may not require using a different strategy than scanning the
+// registry location below.
+void SerialDeviceEnumeratorWin::GetDevices(SerialDeviceInfoList* devices) {
+  devices->clear();
+
+  base::win::RegistryValueIterator iter_key(
+      HKEY_LOCAL_MACHINE, L"HARDWARE\\DEVICEMAP\\SERIALCOMM\\");
+  for (; iter_key.Valid(); ++iter_key) {
+    base::string16 value(iter_key.Value());
+    linked_ptr<SerialDeviceInfo> info(new SerialDeviceInfo);
+    info->path = WideToASCII(value);
+    devices->push_back(info);
+  }
+}
+
+}  // namespace device