* Electron version: 1.4.6
* Operating system: Windows 10

### Expected behavior

After minimizing the window it should restore to the same size.

### Actual behavior

After minimizing the window it is restored to a larger width.

### How to reproduce

The issue started with Electron 1.4.5 and will only appear when you use `minWidth` property in browser window config. As an example:

```javascript
const windowConfig = {
	title: "Test app",
	width: 800,
	height: 600,
	minWidth: 800
};

const mainWindow = new BrowserWindow(windowConfig);
```

atom/browser/native_window_views_win.cc
switch (w_param) {
    case SIZE_MAXIMIZED:
      last_window_state_ = ui::SHOW_STATE_MAXIMIZED;
      NotifyWindowMaximize();
      break;
    case SIZE_MINIMIZED:
      last_window_state_ = ui::SHOW_STATE_MINIMIZED;
      NotifyWindowMinimize();
      break;
    case SIZE_RESTORED:
      switch (last_window_state_) {
        case ui::SHOW_STATE_MAXIMIZED:
          last_window_state_ = ui::SHOW_STATE_NORMAL;
          NotifyWindowUnmaximize();
          break;
        case ui::SHOW_STATE_MINIMIZED:
          if (IsFullscreen()) {
            last_window_state_ = ui::SHOW_STATE_FULLSCREEN;
            NotifyWindowEnterFullScreen();
          } else {
            last_window_state_ = ui::SHOW_STATE_NORMAL;
            NotifyWindowRestore();
          }
          break;
      }
      break;
  }
}
}