* 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
for (NativeWindowObserver& observer : observers_)
    observer.OnWindowRestore();
}
void NativeWindow::NotifyWindowResize() {
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowResize();
}
void NativeWindow::NotifyWindowMove() {
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowMove();
}
void NativeWindow::NotifyWindowMoved() {
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowMoved();
}
void NativeWindow::NotifyWindowEnterFullScreen() {
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowEnterFullScreen();
}
void NativeWindow::NotifyWindowScrollTouchBegin() {
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowScrollTouchBegin();
}
void NativeWindow::NotifyWindowScrollTouchEnd() {
  for (NativeWindowObserver& observer : observers_)
    observer.OnWindowScrollTouchEnd();
}
void NativeWindow::NotifyWindowSwipe(const std::string& direction) {