“Approved by (or approval of) the shareholders” has the meaning set forth in Section 153 of the Corporations Code and shall include approval or ratification by the affirmative vote or written consent of such proportion (including all) greater than a majority of the shares of any class or series as may be provided in the articles, in this division, or in Division 1 (commencing with Section 100), Title 1 of the Corporations Code for all or any specified shareholder action.