As in topic. API currently offers fixed ratio only for Mac but not for Windows
shell/browser/native_window_views.cc
widget()->Restore();
}
bool NativeWindowViews::IsMinimized() {
  return widget()->IsMinimized();
}
void NativeWindowViews::SetFullScreen(bool fullscreen) {
  if (!IsFullScreenable())
    return;
#if defined(OS_WIN)
  
  bool leaving_fullscreen = IsFullscreen() && !fullscreen;
  if (fullscreen) {
    last_window_state_ = ui::SHOW_STATE_FULLSCREEN;
    NotifyWindowEnterFullScreen();
  } else {
    last_window_state_ = ui::SHOW_STATE_NORMAL;
    NotifyWindowLeaveFullScreen();
  }
  
  
  if (!thick_frame_) {
    if (fullscreen) {
      restore_bounds_ = GetBounds();
      auto display =