Implement BluetoothLowEnergyWrapperFake for Bluetooth test fixture

device/bluetooth/bluetooth_low_energy_win.h

 // 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.
 
 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 59 matching lines @@
   DEVPROPTYPE property_type_;
   scoped_ptr<uint8_t[]> value_;
   size_t value_size_;
 
   DISALLOW_COPY_AND_ASSIGN(DevicePropertyValue);
 };
 
 // Returns true only on Windows platforms supporting Bluetooth Low Energy.
 bool DEVICE_BLUETOOTH_EXPORT IsBluetoothLowEnergySupported();
 
-struct BluetoothLowEnergyServiceInfo {
+struct DEVICE_BLUETOOTH_EXPORT BluetoothLowEnergyServiceInfo {
   BluetoothLowEnergyServiceInfo();
   ~BluetoothLowEnergyServiceInfo();
 
   BTH_LE_UUID uuid;
   // Attribute handle uniquely identifies this service on the device.
   USHORT attribute_handle = 0;
 };
 
-struct BluetoothLowEnergyDeviceInfo {
+struct DEVICE_BLUETOOTH_EXPORT BluetoothLowEnergyDeviceInfo {
   BluetoothLowEnergyDeviceInfo();
   ~BluetoothLowEnergyDeviceInfo();
 
   base::FilePath path;
   std::string id;
   std::string friendly_name;
   BLUETOOTH_ADDRESS address;
   bool visible;
   bool authenticated;
   bool connected;
@@ skipping 46 matching lines @@
 
  protected:
   BluetoothLowEnergyWrapper();
   virtual ~BluetoothLowEnergyWrapper();
 };
 
 }  // namespace win
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_