Bug 1621307 - Remove Geturi in txMozillaStylesheetCompiler r=ckerschb

Differential Revision: https://phabricator.services.mozilla.com/D66249

--HG--
extra : moz-landing-system : lando

dom/xslt/xslt/txMozillaStylesheetCompiler.cpp

@@ -408,12 +408,10 @@ nsresult txCompileObserver::startLoad(nsIURI* aUri,
 
   nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
   if (httpChannel) {
-    nsCOMPtr<nsIURI> referrerURI;
-    aReferrerPrincipal->GetURI(getter_AddRefs(referrerURI));
-    if (referrerURI) {
-      DebugOnly<nsresult> rv;
-      nsCOMPtr<nsIReferrerInfo> referrerInfo =
-          new dom::ReferrerInfo(referrerURI, aReferrerPolicy);
+    nsCOMPtr<nsIReferrerInfo> referrerInfo;
+    nsresult rv = aReferrerPrincipal->CreateReferrerInfo(
+        aReferrerPolicy, getter_AddRefs(referrerInfo));
+    if (NS_SUCCEEDED(rv)) {
       rv = httpChannel->SetReferrerInfoWithoutClone(referrerInfo);
       MOZ_ASSERT(NS_SUCCEEDED(rv));
     }