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

chrome/browser/ui/browser.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_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 392 matching lines @@
       const content::OpenURLParams& params) OVERRIDE;
 
   // Overridden from TabStripModelObserver:
   virtual void TabInsertedAt(content::WebContents* contents,
                              int index,
                              bool foreground) OVERRIDE;
   virtual void TabClosingAt(TabStripModel* tab_strip_model,
                             content::WebContents* contents,
                             int index) OVERRIDE;
   virtual void TabDetachedAt(content::WebContents* contents,
-                             int index) OVERRIDE;
+                             int index,
+                             bool closing_all) OVERRIDE;
   virtual void TabDeactivated(content::WebContents* contents) OVERRIDE;
   virtual void ActiveTabChanged(content::WebContents* old_contents,
                                 content::WebContents* new_contents,
                                 int index,
                                 int reason) OVERRIDE;
   virtual void TabMoved(content::WebContents* contents,
                         int from_index,
                         int to_index) OVERRIDE;
   virtual void TabReplacedAt(TabStripModel* tab_strip_model,
                              content::WebContents* old_contents,
@@ skipping 486 matching lines @@
 
   scoped_ptr<chrome::BrowserCommandController> command_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_