WebView

I would like to create a WebView in a plane , on the Internet I found the tutorial for older versions of Unity , I use Unity Pro 5.3.
how can I do?
sorry for my poor english…

which tutorial?

As you can clearly see by the video you posted it uses Awesomium.
http://www.awesomium.com/download/
I suggest you see their forum to ask for people to try and help.
http://answers.awesomium.com

NOTE:
I read around a little and found that at the moment it only support 32bit Unity exports so make sure that you do that if you plan on building your game for standalone.

OK thank you very much