* **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/api/atom_api_top_level_window.cc
Emit("leave-full-screen");
}
void TopLevelWindow::OnWindowScrollTouchBegin() {
  Emit("scroll-touch-begin");
}
void TopLevelWindow::OnWindowScrollTouchEnd() {
  Emit("scroll-touch-end");
}
void TopLevelWindow::OnWindowSwipe(const std::string& direction) {
  Emit("swipe", direction);
}
void TopLevelWindow::OnWindowSheetBegin() {
  Emit("sheet-begin");
}
void TopLevelWindow::OnWindowSheetEnd() {
  Emit("sheet-end");
}
void TopLevelWindow::OnWindowEnterHtmlFullScreen() {
  Emit("enter-html-full-screen");
}
void TopLevelWindow::OnWindowLeaveHtmlFullScreen() {
  Emit("leave-html-full-screen");
}
void TopLevelWindow::OnWindowAlwaysOnTopChanged() {
  Emit("always-on-top-changed", IsAlwaysOnTop());
}
void TopLevelWindow::OnExecuteAppCommand(const std::string& command_name) {
  Emit("app-command", command_name);
}
void TopLevelWindow::OnTouchBarItemResult(