title: make undo apply to drop-down menus and check boxes?
body: <p>I am using Chrome. I have a page with multiple controls. I make changes in an text input, then to a drop-down (select) control, then to a check box or radio button, and then to second text input. I then press control-z once, and it undoes the change in the second text input. I press control-z again and it undoes the change in the first text input. Is there a way in to make this built-in multiple-undo process include changes to drop-down (select) controls and check boxes / radio buttons, without having to write custom code to save values, track edits, capture control-z events, etc.? I know that code is not terribly hard, but if there's a way to make it just happen that would be nice.</p>
  
  <p>I only care about Chrome, so it's okay if there's a Chrome-specific way to do this.</p>