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

device/bluetooth/bluetooth_low_energy_win_fake.h

Index: device/bluetooth/bluetooth_low_energy_win_fake.h
diff --git a/device/bluetooth/bluetooth_low_energy_win_fake.h b/device/bluetooth/bluetooth_low_energy_win_fake.h
index e93774f9bcabc67bffaee9748751e338c8a12c12..d2a9ca2810db06e204c2c570eac2e8b2ca510e99 100644
--- a/device/bluetooth/bluetooth_low_energy_win_fake.h
+++ b/device/bluetooth/bluetooth_low_energy_win_fake.h
@@ -33,23 +33,31 @@ 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;
 };