Allow Registry Iterator functions to use a specified WOW64 mode when iterating.

device/serial/serial_device_enumerator_win.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_device_enumerator_win.h"
 
 #include <windows.h>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
@@ skipping 10 matching lines @@
 
 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.
 mojo::Array<serial::DeviceInfoPtr> SerialDeviceEnumeratorWin::GetDevices() {
   base::win::RegistryValueIterator iter_key(
-      HKEY_LOCAL_MACHINE, L"HARDWARE\\DEVICEMAP\\SERIALCOMM\\");
+      HKEY_LOCAL_MACHINE, L"HARDWARE\\DEVICEMAP\\SERIALCOMM\\", 0);
   mojo::Array<serial::DeviceInfoPtr> devices(0);
   for (; iter_key.Valid(); ++iter_key) {
     serial::DeviceInfoPtr info(serial::DeviceInfo::New());
     info->path = base::UTF16ToASCII(iter_key.Value());
     devices.push_back(info.Pass());
   }
   return devices.Pass();
 }
 
 }  // namespace device