Fix chromium-style errors after https://codereview.chromium.org/1676073002/

device/bluetooth/bluetooth_low_energy_win_fake.h

 // 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.
 
 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_FAKE_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_FAKE_H_
 
 #include "device/bluetooth/bluetooth_low_energy_win.h"
 
 #include <set>
@@ skipping 15 matching lines @@
     BLEGattServicesMap;
 typedef std::unordered_map<std::string, scoped_ptr<BLEGattCharacteristic>>
     BLEGattCharacteristicsMap;
 typedef std::unordered_map<std::string, scoped_ptr<BLEGattDescriptor>>
     BLEGattDescriptorsMap;
 // The key of BLEAttributeHandleTable is the string of the BLE device address.
 typedef std::unordered_map<std::string, scoped_ptr<std::set<USHORT>>>
     BLEAttributeHandleTable;
 
 struct BLEDevice {
+  BLEDevice();
+  ~BLEDevice();
   scoped_ptr<BluetoothLowEnergyDeviceInfo> device_info;
   BLEGattServicesMap primary_services;
 };
 
 struct BLEGattService {
+  BLEGattService();
+  ~BLEGattService();
   scoped_ptr<BTH_LE_GATT_SERVICE> service_info;
   BLEGattServicesMap included_services;
   BLEGattCharacteristicsMap included_characteristics;
 };
 
 struct BLEGattCharacteristic {
+  BLEGattCharacteristic();
+  ~BLEGattCharacteristic();
   scoped_ptr<BTH_LE_GATT_CHARACTERISTIC> characteristic_info;
   scoped_ptr<BTH_LE_GATT_CHARACTERISTIC_VALUE> value;
   BLEGattDescriptorsMap included_descriptors;
 };
 
 struct BLEGattDescriptor {
+  BLEGattDescriptor();
+  ~BLEGattDescriptor();
   scoped_ptr<BTH_LE_GATT_DESCRIPTOR> descriptor_info;
   scoped_ptr<BTH_LE_GATT_DESCRIPTOR_VALUE> value;
 };
 
 // Fake implementation of BluetoothLowEnergyWrapper. Used for BluetoothTestWin.
 class BluetoothLowEnergyWrapperFake : public BluetoothLowEnergyWrapper {
  public:
   BluetoothLowEnergyWrapperFake();
   ~BluetoothLowEnergyWrapperFake() override;
 
@@ skipping 44 matching lines @@
 
   // Table to store allocated attribute handle for a device.
   BLEAttributeHandleTable attribute_handle_table_;
   BLEDevicesMap simulated_devices_;
 };
 
 }  // namespace win
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_FAKE_H_