title: Access QML WebView from C++
body: <p>I have qml file with a webview in it.
  I get a reference to that object in c++ but is QObject*
  Can i cast it to something similar to QWebView from which i can get the QWebPage object and so?
  qobject_cast&lt;> returns NULL if i try QWebView.
  It works with cast to QQuickItem but that doesn't really help me much.</p>
  
  <p>Thanks</p>