* 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.cc
#include "atom/browser/native_window.h"
#include <algorithm>
#include <string>
#include <utility>
#include <vector>
#include "atom/browser/browser.h"
#include "atom/browser/window_list.h"
#include "atom/common/color_util.h"
#include "atom/common/options_switches.h"
#include "native_mate/dictionary.h"
#include "ui/views/widget/widget.h"
#if defined(OS_WIN)
#include "ui/base/win/shell.h"
#include "ui/display/win/screen_win.h"
#endif
namespace atom {
namespace {
#if defined(OS_WIN)
gfx::Size GetExpandedWindowSize(const NativeWindow* window, gfx::Size size) {