* Electron Version: v2.0.1
* Operating System (Platform and Version): windows10
* Last known working Electron version: 1.7.9

Allow frameless transparent windows to be sized smaller than 64x64 on Windows #12923

but，now, it can't bigger than 64x64 on Windows
my `height/width` don't work
when i set `frame: true`, it can't resize
remove `transparent: true`, all work right
![2018-05-18 11_14_17](https://user-images.githubusercontent.com/12164900/40214332-aac2815e-5a8c-11e8-8aa1-38ec2a427e0a.gif)

atom/browser/native_window.cc
bool prevent_default = false;
  for (NativeWindowObserver& observer : observers_)
    observer.WillCloseWindow(&prevent_default);
  if (prevent_default) {
    WindowList::WindowCloseCancelled(this);
    return;
  }
  
  for (NativeWindowObserver& observer : observers_)
    observer.OnCloseButtonClicked(&prevent_default);
  if (prevent_default)
    return;
  CloseImmediately();
}
void NativeWindow::NotifyWindowClosed() {
  if (is_closed_)
    return;
  WindowList::RemoveWindow(this);
  is_closed_ = true;
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowClosed();
}
void NativeWindow::NotifyWindowEndSession() {
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowEndSession();
}
void NativeWindow::NotifyWindowBlur() {