Google Analytics tacking multiples domain mobile web app

Question

Hi, I want tracking mobile web application that it is accessed from multiple domains with one google analytics account. I have found some information to do in tradicional web but not in mobile web.

Could i change this code in snippet1?

if (HttpContext.Current.Request.Url != null) {
      url.Append("&utmp=").Append(HttpUtility.UrlEncode(Request.Url.PathAndQuery));

to Url.AbsoluteUri

Thx in advance,