bluetooth: Create base class BluetoothDevice::CreateGattConnection impl.

device/bluetooth/test/mock_bluetooth_gatt_connection.cc

Index: device/bluetooth/test/mock_bluetooth_gatt_connection.cc
diff --git a/device/bluetooth/test/mock_bluetooth_gatt_connection.cc b/device/bluetooth/test/mock_bluetooth_gatt_connection.cc
index 9af0128b6d144e1ccfce85f41ba75e4000de919d..60dfff1c8b21a33ae863cbbf915663c435a37707 100644
--- a/device/bluetooth/test/mock_bluetooth_gatt_connection.cc
+++ b/device/bluetooth/test/mock_bluetooth_gatt_connection.cc
@@ -13,7 +13,7 @@ namespace device {
 MockBluetoothGattConnection::MockBluetoothGattConnection(
     scoped_refptr<device::BluetoothAdapter> adapter,
     const std::string& device_address)
-    : BluetoothGattConnection(/* Next Patch: adapter.get(), device_address */) {
+    : BluetoothGattConnection(adapter.get(), device_address) {
   ON_CALL(*this, GetDeviceAddress()).WillByDefault(Return(device_address));
   ON_CALL(*this, IsConnected()).WillByDefault(Return(true));
 }