Update CreateTabContents to use a content::Referrer instead of a plain URL

chrome/browser/ui/browser.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 787 matching lines @@
   virtual Browser* CreateNewStripWithContents(
       TabContentsWrapper* detached_contents,
       const gfx::Rect& window_bounds,
       const DockInfo& dock_info,
       bool maximize);
   virtual int GetDragActions() const;
   // Construct a TabContents for a given URL, profile and transition type.
   // If instance is not null, its process will be used to render the tab.
   virtual TabContentsWrapper* CreateTabContentsForURL(
       const GURL& url,
-      const GURL& referrer,
+      const content::Referrer& referrer,
       Profile* profile,
       content::PageTransition transition,
       bool defer_load,
       SiteInstance* instance) const;
   virtual bool CanDuplicateContentsAt(int index);
   virtual void DuplicateContentsAt(int index);
   virtual void CloseFrameAfterDragSession();
   virtual void CreateHistoricalTab(TabContentsWrapper* contents);
   virtual bool RunUnloadListenerBeforeClosing(TabContentsWrapper* contents);
   virtual bool CanCloseContents(std::vector<int>* indices);
@@ skipping 609 matching lines @@
 
   scoped_refptr<FullscreenController> fullscreen_controller_;
 
   // True if the browser window has been shown at least once.
   bool window_has_shown_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_