#pragma warning restore 672
        _GADAdSizeDelegate EnsureGADAdSizeDelegate()
        {
            var del = WeakAdSizeDelegate;

            if (del == null || (!(del is _GADAdSizeDelegate)))
            {
                del = new _GADAdSizeDelegate();
                WeakAdSizeDelegate = del;
            }
            return((_GADAdSizeDelegate)del);
        }
		#pragma warning restore 672
		_GADAdSizeDelegate EnsureGADAdSizeDelegate ()
		{
			var del = WeakAdSizeDelegate;
			if (del == null || (!(del is _GADAdSizeDelegate))){
				del = new _GADAdSizeDelegate ();
				WeakAdSizeDelegate = del;
			}
			return (_GADAdSizeDelegate) del;
		}