Pass along the referrer policy (renderer side)

chrome/browser/ui/search_engines/search_engine_tab_helper.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/search_engines/search_engine_tab_helper.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_fetcher.h"
 #include "chrome/browser/search_engines/template_url_service.h"
@@ skipping 180 matching lines @@
   const GURL& favicon_url =
       controller.GetLastCommittedEntry()->favicon().url();
   if (favicon_url.is_valid()) {
     new_url->SetFaviconURL(favicon_url);
   } else {
     // The favicon url isn't valid. This means there really isn't a favicon,
     // or the favicon url wasn't obtained before the load started. This assumes
     // the later.
     // TODO(sky): Need a way to set the favicon that doesn't involve generating
     // its url.
-    new_url->SetFaviconURL(TemplateURL::GenerateFaviconURL(params.referrer));
+    new_url->SetFaviconURL(
+        TemplateURL::GenerateFaviconURL(params.referrer.url));
   }
   new_url->set_safe_for_autoreplace(true);
   url_service->Add(new_url);
 }