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### Issue Details
BrowserWindow method `removeMenu()` is not working on v7.1.1. The only change made was upgrading Electron version.
https://electronjs.org/docs/api/browser-window#winremovemenu-linux-windows

* **Electron Version:**
  * 7.1.1
* **Operating System:**
  * Windows 10 (1903)
* **Last Known Working Electron version:**
  * v6.0.3

### Expected Behavior
Menu Bar not visible.<!-- A clear and concise description of what you expected to happen. -->

### Actual Behavior
Menu Bar is visible.<!-- A clear and concise description of what actually happened. -->

### To Reproduce
For me, just update Electron version.

### Screenshots
With version 7.1.1:
![image](https://user-images.githubusercontent.com/11201504/68656003-c5d5e880-050f-11ea-8d22-dfd58d166762.png)

With version 6.0.3:
![image](https://user-images.githubusercontent.com/11201504/68656185-1baa9080-0510-11ea-9033-bec7554f4b40.png)

shell/browser/native_window_views.cc
SetFullScreen(simple_fullscreen);
}
bool NativeWindowViews::IsSimpleFullScreen() {
  return IsFullscreen();
}
void NativeWindowViews::SetKiosk(bool kiosk) {
  SetFullScreen(kiosk);
}
bool NativeWindowViews::IsKiosk() {
  return IsFullscreen();
}
void NativeWindowViews::SetBackgroundColor(SkColor background_color) {
  
  root_view_->SetBackground(views::CreateSolidBackground(background_color));
#if defined(OS_WIN)
  
  HBRUSH brush = CreateSolidBrush(skia::SkColorToCOLORREF(background_color));
  ULONG_PTR previous_brush =
      SetClassLongPtr(GetAcceleratedWidget(), GCLP_HBRBACKGROUND,
                      reinterpret_cast<LONG_PTR>(brush));
  if (previous_brush)
    DeleteObject((HBRUSH)previous_brush);
  InvalidateRect(GetAcceleratedWidget(), NULL, 1);
#endif
}
void NativeWindowViews::SetHasShadow(bool has_shadow) {