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* Electron version: 2.0.0-beta.3
* Operating system: Ubuntu 16.04.04 LTS

### Expected behavior

App menu should be visible

### Actual behavior

App menu is invisible

### How to reproduce

- Run `electron`
- Observe that the app menu is invisible. It is still possible to open submenus.

![screenshot from 2018-03-14 17-01-18](https://user-images.githubusercontent.com/19880051/37415303-7296c25e-27ab-11e8-8284-d213c8bf5230.png)

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() {