### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.

### Electron Version

12.0.0

### What operating system are you using?

macOS

### Operating System Version

10.14.0

### What arch are you using?

x64

### Last Known Working Electron version

---

### Expected Behavior

No crash when calling method

### Actual Behavior

App crashes when calling `getBackgroundColr()`

### Testcase Gist URL

https://gist.github.com/d50e366f070104cac377fd7a48722cbe

### Additional Information

_No response_


shell/browser/native_window_views.cc
if (resizable != resizable_) {
    
    
    if (resizable) {
      SetContentSizeConstraints(old_size_constraints_);
      SetMaximizable(maximizable_);
    } else {
      old_size_constraints_ = GetContentSizeConstraints();
      resizable_ = false;
      gfx::Size content_size = GetContentSize();
      SetContentSizeConstraints(
          extensions::SizeConstraints(content_size, content_size));
    }
  }
#if defined(OS_WIN)
  if (has_frame() && thick_frame_)
    FlipWindowStyle(GetAcceleratedWidget(), resizable, WS_THICKFRAME);
#endif
  resizable_ = resizable;
}
bool NativeWindowViews::MoveAbove(const std::string& sourceId) {