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

chrome/browser/ui/gtk/tabs/tab_strip_gtk.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_GTK_TABS_TAB_STRIP_GTK_H_
 #define CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_
 
 #include <gtk/gtk.h>
 #include <vector>
 
@@ skipping 94 matching lines @@
 
   // ViewIDUtil::Delegate implementation ---------------------------------------
   virtual GtkWidget* GetWidgetForViewID(ViewID id) OVERRIDE;
 
  protected:
   // TabStripModelObserver implementation:
   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 TabMoved(content::WebContents* contents,
                         int from_index,
                         int to_index) OVERRIDE;
   virtual void ActiveTabChanged(content::WebContents* old_contents,
                                 content::WebContents* new_contents,
                                 int index,
                                 int reason) OVERRIDE;
   virtual void TabSelectionChanged(
       TabStripModel* tab_strip_model,
       const ui::ListSelectionModel& old_model) OVERRIDE;
@@ skipping 368 matching lines @@
 
   // Helper for performing tab selection as a result of dragging over a tab.
   HoverTabSelector hover_tab_selector_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(TabStripGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_