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

chrome/browser/ui/views/ash/tab_scrubber_browsertest.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/views/ash/tab_scrubber.h"
 
 #include "ash/display/event_transformation_handler.h"
 #include "ash/shell.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 167 matching lines @@
   }
 
   // TabStripModelObserver overrides.
   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 {
     activation_order_.push_back(index);
     if (index == target_index_)
       quit_closure_.Run();
   }
 
@@ skipping 216 matching lines @@
 IN_PROC_BROWSER_TEST_F(TabScrubberTest, CloseBrowser) {
   AddTabs(browser(), 1);
 
   SendScrubEvent(browser(), 0);
   EXPECT_TRUE(TabScrubber::GetInstance()->IsActivationPending());
   browser()->window()->Close();
   EXPECT_FALSE(TabScrubber::GetInstance()->IsActivationPending());
 }
 
 #endif // OS_CHROMEOS