Removed the code that checks the tab number.

chrome/browser/app_controller_mac.h

 // Copyright (c) 2011 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_APP_CONTROLLER_MAC_H_
 #define CHROME_BROWSER_APP_CONTROLLER_MAC_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 #include <vector>
@@ skipping 22 matching lines @@
   scoped_ptr<HistoryMenuBridge> historyMenuBridge_;
   AboutWindowController* aboutController_;  // Weak.
 
   // If we're told to open URLs (in particular, via |-application:openFiles:| by
   // Launch Services) before we've launched the browser, we queue them up in
   // |startupUrls_| so that they can go in the first browser window/tab.
   std::vector<GURL> startupUrls_;
   BOOL startupComplete_;
 
   // Outlets for the close tab/window menu items so that we can adjust the
-  // commmand-key equivalent depending on the kind of window and how many
-  // tabs it has.
+  // commmand-key equivalent depending on the kind of window.
   IBOutlet NSMenuItem* closeTabMenuItem_;
   IBOutlet NSMenuItem* closeWindowMenuItem_;
   BOOL fileMenuUpdatePending_;  // ensure we only do this once per notificaion.
 
   // Outlet for the help menu so we can bless it so Cocoa adds the search item
   // to it.
   IBOutlet NSMenu* helpMenu_;
 
   // Outlet for the tabpose menu item so we can hide it.
   IBOutlet NSMenuItem* tabposeMenuItem_;
@@ skipping 35 matching lines @@
 - (const std::vector<GURL>&)startupUrls;
 
 // Clear the list of startup URLs.
 - (void)clearStartupUrls;
 
 - (BookmarkMenuBridge*)bookmarkMenuBridge;
 
 @end
 
 #endif