How do I get the URL of a right-clicked link sent to an automator action?

I'd like to create a service to open a link in Chrome. I already have this service installed: Safari Extension for right click menu: Open in Google Chrome?

This works if I right-click on selected text that is a URL. But it doesn't work if I right-click a link whose title is not a URL. For example, I'd like to right click a thread title at http://meh.com/forum and have that thread open in Chrome. The service referenced above doesn't show up in the Services contextual menu. Safari has a "Copy Link" menu item in the contextual menu. Is there a way to trigger that command from Automator or AppleScript?