Code review comment for lp:~artmello/gallery-app/gallery-app-fix_toolbar_device

I did some smoke testing on device, and fullscreen mode regressed there (the app is not actually launched fullscreen any longer). You probably need to do something like that:

    if (m_cmdLineParser->isFullscreen() || !isDesktopMode()) {
        setFullScreen(true);
        m_view->showFullScreen();
    } else {
        m_view->show();
    }