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

device/bluetooth/bluetooth_low_energy_win_fake.cc

Index: device/bluetooth/bluetooth_low_energy_win_fake.cc
diff --git a/device/bluetooth/bluetooth_low_energy_win_fake.cc b/device/bluetooth/bluetooth_low_energy_win_fake.cc
index 60926be75d59020f1a15f408d0f11628227fa153..6db6444d8e38ca625b2e01f063cf0625670b6b43 100644
--- a/device/bluetooth/bluetooth_low_energy_win_fake.cc
+++ b/device/bluetooth/bluetooth_low_energy_win_fake.cc
@@ -14,6 +14,18 @@ const char kPlatformNotSupported[] =
 namespace device {
 namespace win {
 
+BLEDevice::BLEDevice() {}
+BLEDevice::~BLEDevice() {}
+
+BLEGattService::BLEGattService() {}
+BLEGattService::~BLEGattService() {}
+
+BLEGattCharacteristic::BLEGattCharacteristic() {}
+BLEGattCharacteristic::~BLEGattCharacteristic() {}
+
+BLEGattDescriptor::BLEGattDescriptor() {}
+BLEGattDescriptor::~BLEGattDescriptor() {}
+
 BluetoothLowEnergyWrapperFake::BluetoothLowEnergyWrapperFake() {}
 BluetoothLowEnergyWrapperFake::~BluetoothLowEnergyWrapperFake() {}