Hi we're currently in the process of upgrading from 6.2.4->7 and it hasn't been that smooth as we went from 4->6 successfully and would now like to move to 7

Just wondering what replaces CreateXPathQuery in v7 I noticed a Legacy Handler in the source but it is internal.

I'm looking to replace this:

if (HttpContext.Current != null && HttpContext.Current.Request.UrlReferrer != null)
        {
            var extensionlessAbsolutePath = Path.GetFileNameWithoutExtension(HttpContext.Current.Request.UrlReferrer.AbsolutePath);
            if (!string.IsNullOrWhiteSpace(extensionlessAbsolutePath))
            {
                var umbracoUrlXPath = umbraco.presentation.requestHandler.CreateXPathQuery(extensionlessAbsolutePath, true);
                var referringNode = Cms.GetContentXml().SelectSingleNode(umbracoUrlXPath);

                if (referringNode != null)
                {
                    nodeId = int.Parse(referringNode.Attributes.GetNamedItem("id").Value);
                }
            }
        }