Need a Linux impl for https://github.com/electron/electron/pull/12485
atom/browser/native_window_views.h
#elif defined(USE_X11)
class EventDisabler;
#endif
class NativeWindowViews : public NativeWindow,
#if defined(OS_WIN)
                          public MessageHandlerDelegate,
#endif
                          public views::WidgetObserver,
                          public ui::EventHandler {
 public:
  NativeWindowViews(const mate::Dictionary& options, NativeWindow* parent);
  ~NativeWindowViews() override;
  
  void SetContentView(views::View* view) override;
  void Close() override;
  void CloseImmediately() override;
  void Focus(bool focus) override;
  bool IsFocused() override;
  void Show() override;
  void ShowInactive() override;
  void Hide() override;
  bool IsVisible() override;
  bool IsEnabled() override;
  void SetEnabled(bool enable) override;
  void Maximize() override;
  void Unmaximize() override;
  bool IsMaximized() override;
  void Minimize() override;
  void Restore() override;
  bool IsMinimized() override;