Refactor bluetooth_low_energy_win to prepare for new Bluetooth test fixture

device/bluetooth/bluetooth_task_manager_win.cc

 // Copyright (c) 2012 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_task_manager_win.h"
 
 #include <stddef.h>
 #include <winsock2.h>
 
 #include <string>
@@ skipping 462 matching lines @@
 }
 
 bool BluetoothTaskManagerWin::SearchLowEnergyDevices(
     ScopedVector<DeviceState>* device_list) {
   if (!win::IsBluetoothLowEnergySupported())
     return true;  // Bluetooth LE not supported is not an error.
 
   ScopedVector<win::BluetoothLowEnergyDeviceInfo> btle_devices;
   std::string error;
   bool success =
-      win::EnumerateKnownBluetoothLowEnergyDevices(&btle_devices, &error);
+      win::BluetoothLowEnergyHub::GetInstance()
+          ->EnumerateKnownBluetoothLowEnergyDevices(&btle_devices, &error);
   if (!success) {
     LogPollingError(error.c_str(), 0);
     return false;
   }
 
   for (ScopedVector<win::BluetoothLowEnergyDeviceInfo>::iterator iter =
            btle_devices.begin();
        iter != btle_devices.end();
        ++iter) {
     win::BluetoothLowEnergyDeviceInfo* device_info = (*iter);
@@ skipping 135 matching lines @@
 }
 
 bool BluetoothTaskManagerWin::DiscoverLowEnergyDeviceServices(
     const base::FilePath& device_path,
     ScopedVector<ServiceRecordState>* service_record_states) {
   if (!win::IsBluetoothLowEnergySupported())
     return true;  // Bluetooth LE not supported is not an error.
 
   std::string error;
   ScopedVector<win::BluetoothLowEnergyServiceInfo> services;
-  bool success = win::EnumerateKnownBluetoothLowEnergyServices(
-      device_path, &services, &error);
+  bool success = win::BluetoothLowEnergyHub::GetInstance()
+                     ->EnumerateKnownBluetoothLowEnergyServices(
+                         device_path, &services, &error);
   if (!success) {
     LogPollingError(error.c_str(), 0);
     return false;
   }
 
   for (ScopedVector<win::BluetoothLowEnergyServiceInfo>::iterator iter2 =
            services.begin();
        iter2 != services.end();
        ++iter2) {
     ServiceRecordState* service_state = new ServiceRecordState();
     service_state->gatt_uuid =
         BluetoothLowEnergyUuidToBluetoothUuid((*iter2)->uuid);
     service_record_states->push_back(service_state);
   }
   return true;
 }
 
 }  // namespace device