Ok Ashley, thanks for your answer. I ask because in previous version (r235) i don't see any plugin.
My questions was more to know what are they plugins, just for info..
For example: If i build with "Compat" and "WKWebView Engine" and build again without will be any difference? With all this plugins i have better performance? If all this conversation it's too complex no need to answer, i will keep the plugins, it's not a problem.. Thanks again!