Unbreak tabs.onRemove extension API in face of fast tab closure

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/scoped_ptr.h"
@@ skipping 85 matching lines @@
   // Overridden from content::NotificationObserver:
   virtual void Observe(int type,
                        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;
+                             int index,
+                             bool closing_all) OVERRIDE;
   virtual void TabReplacedAt(TabStripModel* tab_strip_model,
                              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);
 
   // Detach |contents| and wait for it to finish closing.
@@ skipping 54 matching lines @@
   scoped_ptr<DetachedWebContentsDelegate> detached_delegate_;
 
   base::WeakPtrFactory<UnloadController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UnloadController);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_UNLOAD_CONTROLLER_H_