It does use a config test for now, just to make it clearer. The Mac
backend currently requires widgets, but most of the others should work
without it (just not supporting QVideoWidget/WindowControl).
The QVideoDeviceControl interface was modified to remove the QIcon
usage - it was never implemented.
Unfortunately even the QML examples need widgets for the wrapper
application, and will need to be ported to QtGui based wrapper.
Change-Id: I8a55ad5cf09ab51749510bf16f49de0bd3f0bcdb
Reviewed-by: Ling Hu <ling.hu@nokia.com>
c97f5f8c2e