While the [`win.setFullScreen(false)`](https://github.com/electron/electron/blob/master/docs/api/browser-window.md#winsetfullscreenflag) works as expected on macOS and Windows, it seems that on Ubuntu it goes to full screen regardless of the argument.
- Electron version: 1.2.8
- Operating system: Ubuntu 64bit 16.04

atom/browser/native_window_views.cc
#if defined(OS_WIN)
  base::win::ScopedComPtr<ITaskbarList> taskbar;
  if (FAILED(taskbar.CreateInstance(CLSID_TaskbarList, NULL,
                                    CLSCTX_INPROC_SERVER)) ||
      FAILED(taskbar->HrInit()))
    return;
  if (skip) {
    taskbar->DeleteTab(GetAcceleratedWidget());
  } else {
    taskbar->AddTab(GetAcceleratedWidget());
    taskbar_host_.RestoreThumbarButtons(GetAcceleratedWidget());
  }
#elif defined(USE_X11)
  SetWMSpecState(GetAcceleratedWidget(), skip,
                 GetAtom("_NET_WM_STATE_SKIP_TASKBAR"));
#endif
}
void NativeWindowViews::SetKiosk(bool kiosk) {