Make NavigationEntry and friends use content::Referrer instead of plain URLs

content/browser/tab_contents/navigation_entry.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_entry.h"
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "content/browser/site_instance.h"
 #include "content/public/browser/content_browser_client.h"
@@ skipping 31 matching lines @@
       page_id_(-1),
       transition_type_(content::PAGE_TRANSITION_LINK),
       has_post_data_(false),
       restore_type_(RESTORE_NONE),
       is_renderer_initiated_(false) {
 }
 
 NavigationEntry::NavigationEntry(SiteInstance* instance,
                                  int page_id,
                                  const GURL& url,
-                                 const GURL& referrer,
+                                 const content::Referrer& referrer,
                                  const string16& title,
                                  content::PageTransition transition_type,
                                  bool is_renderer_initiated)
     : unique_id_(GetUniqueID()),
       site_instance_(instance),
       page_type_(content::PAGE_TYPE_NORMAL),
       url_(url),
       referrer_(referrer),
       update_virtual_url_with_url_(false),
       title_(title),
@@ skipping 38 matching lines @@
       title = title.substr(slashpos + 1);
   }
 
   ui::ElideString(title, content::kMaxTitleChars, &cached_display_title_);
   return cached_display_title_;
 }
 
 bool NavigationEntry::IsViewSourceMode() const {
   return virtual_url_.SchemeIs(chrome::kViewSourceScheme);
 }