Implement BluetoothLowEnergyWrapperFake for Bluetooth test fixture

device/bluetooth/bluetooth_classic_win.cc

 // Copyright 2016 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/bluetooth/bluetooth_classic_win.h"
 
 namespace {
 static device::win::BluetoothClassicWrapper* g_instance_ = nullptr;
 }  // namespace
 
@@ skipping 68 matching lines @@
 
 BOOL BluetoothClassicWrapper::EnableDiscovery(HANDLE handle, BOOL is_enable) {
   return BluetoothEnableDiscovery(handle, is_enable);
 }
 
 BOOL BluetoothClassicWrapper::EnableIncomingConnections(HANDLE handle,
                                                         BOOL is_enable) {
   return BluetoothEnableIncomingConnections(handle, is_enable);
 }
 
+DWORD BluetoothClassicWrapper::LastError() {
+  return GetLastError();
+}
+
 }  // namespace win
 }  // namespace device