Unanimous Consent
"At times, the House may choose to depart from the rules it has made for itself by obtaining the consent of all Members present in the House. Such a suspension of the rules or usual practices is done by what is termed “unanimous consent”.
For the most part, unanimous consent is used as a means of expediting the routine business of the House or as a means of extending the courtesies of the House. For example, unanimous consent can be used to alter the usual speaking rotation, briefly extend the length of speeches or permit a Member who has already spoken to make additional comments.
The arrangement of House business is also commonly achieved by unanimous consent. This may involve changes to the order of business, the suspension of sittings, alterations in adjournment hours or sitting days and special orders respecting procedures for individual events.
Despite the variety of uses to which it has been put, unanimous consent cannot be utilized to circumvent any and every rule or practice of the House. For example, unanimous consent may not be used to set aside provisions of the Constitution Act or any other statutory authority."
http://www.parl.gc.ca/compendium/web-content/c_g_debatevoting-e.htm#10I don't see anyone being asked to consent to "unanimous consent" to the passage of the bill which seems is a prerequisite to it being a legal decision.
It doesn't seem, however, the opposition parties care too much which is interesting in itself.