fix compile error when USING_QWINDOW == 0.
Merge pull request #294 from joewan/upgrade_to_2_2_3

fix compile error when USING_QWINDOW == 0.
Merge branch 'upgrade_to_2_2_3' of github.com:dualface/quick-cocos2d-x into feature/merge_upgrade_to_2_2_3
Merge branch 'feature/merge_upgrade_to_2_2_3' of github.com:dualface/quick-cocos2d-x into feature/merge_upgrade_to_2_2_3