There is a library called JxBrowser which has taken Chromium , linked it with Java and created something amazing .
I have made also a web-browser entirely in JavaFX , press here.
Based on JxBrowser i have created a completely :
standalone
embeddable
beautiful
powerful
Web Browser which you can use inside your JavaFX/Swing applications.
This is a futuristic project . I have not yet released the code of it .