Remove TabContents from TabStripModelObserver::TabReplacedAt.

chrome/browser/ui/unload_controller.cc

 // 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.
 
 #include "chrome/browser/ui/unload_controller.h"
 
 #include "base/message_loop.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/tab_contents/tab_contents.h"
@@ skipping 108 matching lines @@
                                      bool foreground) {
   TabAttachedImpl(contents);
 }
 
 void UnloadController::TabDetachedAt(content::WebContents* contents,
                                      int index) {
   TabDetachedImpl(contents);
 }
 
 void UnloadController::TabReplacedAt(TabStripModel* tab_strip_model,
-                                     TabContents* old_contents,
-                                     TabContents* new_contents,
+                                     content::WebContents* old_contents,
+                                     content::WebContents* new_contents,
                                      int index) {
-  TabDetachedImpl(old_contents->web_contents());
-  TabAttachedImpl(new_contents->web_contents());
+  TabDetachedImpl(old_contents);
+  TabAttachedImpl(new_contents);
 }
 
 void UnloadController::TabStripEmpty() {
   // Set is_attempting_to_close_browser_ here, so that extensions, etc, do not
   // attempt to add tabs to the browser before it closes.
   is_attempting_to_close_browser_ = true;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // UnloadController, private:
@@ skipping 106 matching lines @@
     } else {
       MessageLoop::current()->PostTask(
           FROM_HERE,
           base::Bind(&UnloadController::ProcessPendingTabs,
                      weak_factory_.GetWeakPtr()));
     }
   }
 }
 
 }  // namespace chrome