* Output of `node_modules/.bin/electron --version`: v3.0.10
* Operating System (Platform and Version): Windows 10 x64 (1803  17134.345)
* Output of `node_modules/.bin/electron --version` on last known working Electron version (if applicable):
v3.0.10
**Expected Behavior**
I would like to see the window move across the screen.

**Actual behavior**
The window moves around the screen. But first, the height of the window decreases.

**To Reproduce**
Write simple program that contains code:
`
mainWindow = new BrowserWindow({ width: 370,
		height: 270,
		x: 100,
		y: 100,
		resizable: false,
	 });
`
Start app. Grab the window with the mouse for its title and drag across the screen.

**Additional Information**
This error occurs when explicitly specifying the x, y coordinates of the window and the option "resizable: false".

atom/browser/native_window_views_win.cc
UINT msg,
                                                 WPARAM w_param,
                                                 LPARAM l_param,
                                                 UINT_PTR subclass_id,
                                                 DWORD_PTR ref_data) {
  NativeWindowViews* window = reinterpret_cast<NativeWindowViews*>(ref_data);
  switch (msg) {
    case WM_MOUSELEAVE: {
      
      
      
      
      
      
      
      
      
      
      if (window->forwarding_mouse_messages_) {
        return 0;
      }
      break;
    }
  }
  return DefSubclassProc(hwnd, msg, w_param, l_param);
}
LRESULT CALLBACK NativeWindowViews::MouseHookProc(int n_code,