Pass along the referrer policy (renderer side)

content/browser/tab_contents/navigation_controller.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 "content/browser/tab_contents/navigation_controller.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"  // Temporary
 #include "base/string_util.h"
@@ skipping 765 matching lines @@
     // When navigating to a new page, give the browser URL handler a chance to
     // update the virtual URL based on the new URL. For example, this is needed
     // to show chrome://bookmarks/#1 when the bookmarks webui extension changes
     // the URL.
     update_virtual_url = true;
   }
 
   new_entry->set_url(params.url);
   if (update_virtual_url)
     UpdateVirtualURLToURL(new_entry, params.url);
-  new_entry->set_referrer(params.referrer);
+  new_entry->set_referrer(params.referrer.url);
   new_entry->set_page_id(params.page_id);
   new_entry->set_transition_type(params.transition);
   new_entry->set_site_instance(tab_contents_->GetSiteInstance());
   new_entry->set_has_post_data(params.is_post);
 
   InsertOrReplaceEntry(new_entry, *did_replace_entry);
 }
 
 void NavigationController::RendererDidNavigateToExistingPage(
     const ViewHostMsg_FrameNavigate_Params& params) {
@@ skipping 465 matching lines @@
   for (int i = 0; i < max_index; i++) {
     // When cloning a tab, copy all entries except interstitial pages
     if (source.entries_[i].get()->page_type() !=
         content::PAGE_TYPE_INTERSTITIAL) {
       entries_.insert(entries_.begin() + insert_index++,
                       linked_ptr<NavigationEntry>(
                           new NavigationEntry(*source.entries_[i])));
     }
   }
 }