SECOND AMENDED AND RESTATED SECOND MEZZANINE LOAN AGREEMENT Dated as of August 31, 2010 Among HARRAH’S LAS VEGAS MEZZ 2, LLC, HARRAH’S ATLANTIC CITY MEZZ 2, LLC, RIO MEZZ 2, LLC, FLAMINGO LAS VEGAS MEZZ 2, LLC, HARRAH’S LAUGHLIN MEZZ 2, LLC, AND PARIS...