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

chrome/browser/unload_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.
 
 #if defined(OS_POSIX)
 #include <signal.h>
 #endif
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 443 matching lines @@
         run_loop_(run_loop) {
     model_->AddObserver(this);
   }
 
   virtual ~FastTabCloseTabStripModelObserver() {
     model_->RemoveObserver(this);
   }
 
   // TabStripModelObserver:
   virtual void TabDetachedAt(content::WebContents* contents,
-                             int index) OVERRIDE {
+                             int index,
+                             bool closing_all) OVERRIDE {
     run_loop_->Quit();
   }
 
  private:
   TabStripModel* const model_;
   base::RunLoop* const run_loop_;
 };
 
 
 // Test that fast-tab-close works when closing a tab with an unload handler
@@ skipping 136 matching lines @@
   content::WindowedNotificationObserver window_observer(
         chrome::NOTIFICATION_BROWSER_CLOSED,
         content::NotificationService::AllSources());
   chrome::CloseWindow(browser());
   CrashTab(beforeunload_contents);
   window_observer.Wait();
 }
 
 // TODO(ojan): Add tests for unload/beforeunload that have multiple tabs
 // and multiple windows.