As in topic. API currently offers fixed ratio only for Mac but not for Windows
shell/browser/native_window_views.cc
return base::UTF8ToUTF16(title_);
}
views::View* NativeWindowViews::GetContentsView() {
  return root_view_.get();
}
bool NativeWindowViews::ShouldDescendIntoChildForEventHandling(
    gfx::NativeView child,
    const gfx::Point& location) {
  
  
  for (auto* view : browser_views()) {
    auto* native_view = static_cast<NativeBrowserViewViews*>(view);
    auto* view_draggable_region = native_view->draggable_region();
    if (view_draggable_region &&
        view_draggable_region->contains(location.x(), location.y()))
      return false;
  }
  
  if (draggable_region() &&
      draggable_region()->contains(location.x(), location.y()))
    return false;
  
  if (!has_frame() && CanResize()) {
    auto* frame =
        static_cast<FramelessView*>(widget()->non_client_view()->frame_view());
    return frame->ResizingBorderHitTest(location) == HTNOWHERE;
  }
  return true;
}
views::ClientView* NativeWindowViews::CreateClientView(views::Widget* widget) {