* 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/ui/views/root_view.h
#ifndef ATOM_BROWSER_UI_VIEWS_ROOT_VIEW_H_
#define ATOM_BROWSER_UI_VIEWS_ROOT_VIEW_H_
#include <memory>
#include "atom/browser/ui/accelerator_util.h"
#include "ui/views/view.h"
#include "ui/views/view_tracker.h"
namespace content {
struct NativeWebKeyboardEvent;
}
namespace atom {
class AtomMenuModel;
class MenuBar;
class NativeWindow;
class RootView : public views::View {
 public:
  explicit RootView(NativeWindow* window);
  ~RootView() override;
  void SetMenu(AtomMenuModel* menu_model);
  bool HasMenu() const;
  int GetMenuBarHeight() const;
  void SetAutoHideMenuBar(bool auto_hide);