As in topic. API currently offers fixed ratio only for Mac but not for Windows
shell/browser/native_window_views.cc
widget()->ShowInactive();
  NotifyWindowShow();
#if defined(USE_X11)
  if (!features::IsUsingOzonePlatform() && global_menu_bar_)
    global_menu_bar_->OnWindowMapped();
#endif
}
void NativeWindowViews::Hide() {
  if (is_modal() && NativeWindow::parent())
    static_cast<NativeWindowViews*>(parent())->DecrementChildModals();
  widget()->Hide();
  NotifyWindowHide();
#if defined(USE_X11)
  if (!features::IsUsingOzonePlatform() && global_menu_bar_)
    global_menu_bar_->OnWindowUnmapped();
#endif
}
bool NativeWindowViews::IsVisible() {
  return widget()->IsVisible();
}
bool NativeWindowViews::IsEnabled() {