Remove TabContents from TabStripModelObserver::TabReplacedAt.

chrome/browser/ui/unload_controller.h

 // Copyright (c) 2012 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_UNLOAD_CONTROLLER_H_
 #define CHROME_BROWSER_UI_UNLOAD_CONTROLLER_H_
 
 #include <set>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 59 matching lines @@
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Overridden from TabStripModelObserver:
   virtual void TabInsertedAt(content::WebContents* contents,
                              int index,
                              bool foreground) OVERRIDE;
   virtual void TabDetachedAt(content::WebContents* contents,
                              int index) OVERRIDE;
   virtual void TabReplacedAt(TabStripModel* tab_strip_model,
-                             TabContents* old_contents,
-                             TabContents* new_contents,
+                             content::WebContents* old_contents,
+                             content::WebContents* new_contents,
                              int index) OVERRIDE;
   virtual void TabStripEmpty() OVERRIDE;
 
   void TabAttachedImpl(content::WebContents* contents);
   void TabDetachedImpl(content::WebContents* contents);
 
   // Processes the next tab that needs it's beforeunload/unload event fired.
   void ProcessPendingTabs();
 
   // Whether we've completed firing all the tabs' beforeunload/unload events.
@@ skipping 38 matching lines @@
   bool is_attempting_to_close_browser_;
 
   base::WeakPtrFactory<UnloadController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UnloadController);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_UNLOAD_CONTROLLER_H_