Add BrowserWindow.setAutoHideCursor for macOS

The `disableAutoHideCursor` BrowserWindow option can be used to control
auto-hiding behavior when the window is created. This new API is needed
to dynamically change the behavior after the fact.

atom/browser/native_window.cc

@@ -333,6 +333,9 @@ void NativeWindow::SetParentWindow(NativeWindow* parent) {
   parent_ = parent;
 }
 
+void NativeWindow::SetAutoHideCursor(bool auto_hide) {
+}
+
 void NativeWindow::SetVibrancy(const std::string& filename) {
 }