The QtWebKit Module is a module which allows a developer to embed web content in a Qt application using the Webkit engine. For instance, it could be used to display HTML or SVG content over a video, as an overlay. It can also allow to interpret web content directly inside an application.
QtWebKit in QtCreator
If you use QtCreator as IDE, then you can see that it is possible to add QtWebKit as a widget into your application.