how to set NAVIGATION_MODE_LIST on Toolbar new appcompat v7 21

Now all methods related to navigation modes in the ActionBar class, such as setNavigationMode()... are now deprecated.

The documentation explains:

Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.

In my current application, there is a spinner on ActionBar. How do I apply NAVIGATION_MODE_LIST on the new widget Toolbar in the new version appcompat v7 21.
Thanks in advance.