(a) If the articles of incorporation provide for more or less than one vote for a share on a matter, a reference in this chapter to a majority or other proportion of shares means a majority or other proportion of the votes entitled to be cast on that matter. If shares are disqualified from voting on a matter, they may not be considered outstanding for the determination of a quorum at a meeting to act upon or for the required vote to approve action upon that matter.
(b) A requirement in this chapter for a vote of each class of outstanding shares means a vote regardless of limitations or restrictions upon the voting rights of that class, unless expressly limited to voting shares.