* **Electron Version:**
  4.0.2
* **Operating System:**
  macOS 10.14.3
* **Last Known Working Electron version:**:
  1.7

### Expected Behavior
When creating a BrowserWindow it should not appear in the dock menu by defaults.

### Actual Behavior
It appears in the dock menu (example: `raven` in https://electronjs.org/docs/tutorial/macos-dock)

### To Reproduce
Just create new BrowserWindow, then right click on the app icon in the dock. (see https://electronjs.org/docs/tutorial/macos-dock)

At least it should be a way to control that, this can be achieve for top level window with:
`[window_ setExcludedFromWindowsMenu:YES];`, indeed [window isExcludedFromWindowsMenu] returns false by default, see

https://developer.apple.com/documentation/appkit/nsapplication/1428625-removewindowsitem
`Use the isExcludedFromWindowsMenu method of NSWindow if you want the item to remain excluded from the Window menu.`
https://developer.apple.com/documentation/appkit/nswindow/1419175-isexcludedfromwindowsmenu

atom/browser/native_window_views.cc
NativeWindow* parent)
    : NativeWindow(options, parent),
      root_view_(new RootView(this)),
      keyboard_event_handler_(new views::UnhandledKeyboardEventHandler) {
  options.Get(options::kTitle, &title_);
  bool menu_bar_autohide;
  if (options.Get(options::kAutoHideMenuBar, &menu_bar_autohide))
    root_view_->SetAutoHideMenuBar(menu_bar_autohide);
#if defined(OS_WIN)
  
  
  options.Get(options::kResizable, &resizable_);
  options.Get(options::kMinimizable, &minimizable_);
  options.Get(options::kMaximizable, &maximizable_);
  
  options.Get("thickFrame", &thick_frame_);
  if (transparent())
    thick_frame_ = false;
#endif
  if (enable_larger_than_screen())
    
    
    
    
    SetContentSizeConstraints(extensions::SizeConstraints(