Thanks alot. I do want to make some part of VDA-wayland be accepted in upstream but very very hard to and please refer to i try before https://codereview.chromium.org/240113009/. 

Also, I am buy-in the @ds-hwang 's comments. 
https://github.com/crosswalk-project/chromium-crosswalk/pull/150#issuecomment-41179525