The documentation supported by the ppapi plugins is too simple. and does Qt5.9 have the complete process or step documentation to display the ppapi plugins?

 
No!I'm not talking about the nppapi, I'm talking about the ppapi(Pepper Plugin API), and Qt only gives the following explanation.

< file path - plugin1 >;< the mime type - plugin1 >, < file path - plugin2 >;< mime - type1 - plugin2 >;< mime - type2 - plugin2 >
 
I need to use this pepper plugins in QWebEngine, but I don't know how to register this pepper plugins?