Normalize get name so that it matches the normalize stored cookie name.
Don't queue cookie change event if there's no listener. This one's a bit tricky
since we do this check inside the callback already. But that means a listener
added after the event is created (but before it's delivered) gets a change
event it should not. So we need to check it both at event-creation time and
at delivery time.
Karl Seguin
4cdf8b441e