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
window_->CloseNow();
}
void NativeWindowViews::Focus(bool focus) {
  
  if (!IsVisible())
    return;
  if (focus) {
#if defined(OS_WIN)
    window_->Activate();
#elif defined(USE_X11)
    
    ::Window window = GetAcceleratedWidget();
    XDisplay* xdisplay = gfx::GetXDisplay();
    SendClientEvent(xdisplay, window, "_NET_ACTIVE_WINDOW");
    XMapRaised(xdisplay, window);
#endif
  } else {
    window_->Deactivate();
  }
}
bool NativeWindowViews::IsFocused() {
  return window_->IsActive();
}
void NativeWindowViews::Show() {