Attemp 2 at:

chrome/browser/views/tabs/tab_strip.h

 // Copyright (c) 2010 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_VIEWS_TABS_TAB_STRIP_H_
 #define CHROME_BROWSER_VIEWS_TABS_TAB_STRIP_H_
 
 #include "app/animation_container.h"
 #include "base/message_loop.h"
 #include "base/ref_counted.h"
@@ skipping 27 matching lines @@
 //      in response to dragged tabs.
 //
 ///////////////////////////////////////////////////////////////////////////////
 class TabStrip : public BaseTabStrip,
                  public views::ButtonListener,
                  public MessageLoopForUI::Observer {
  public:
   explicit TabStrip(TabStripController* controller);
   virtual ~TabStrip();
 
-  // Set whether the new tab button is enabled.
-  void set_new_tab_button_enabled(bool enabled) {
-    new_tab_button_enabled_ = enabled;
-  }
-
-  // Returns whether the new tab button is enabled.
-  bool new_tab_button_enabled() {
-    return new_tab_button_enabled_;
-  }
-
   // Creates the new tab button.
   void InitTabStripButtons();
 
   // Returns the bounds of the new tab button.
   gfx::Rect GetNewTabButtonBounds();
 
   // BaseTabStrip implementation:
   virtual int GetPreferredHeight();
   virtual void SetBackgroundOffset(const gfx::Point& offset);
   virtual bool IsPositionInWindowCaption(const gfx::Point& point);
@@ skipping 237 matching lines @@
   // Valid for the lifetime of a drag over us.
   scoped_ptr<DropInfo> drop_info_;
 
   // To ensure all tabs pulse at the same time they share the same animation
   // container. This is that animation container.
   scoped_refptr<AnimationContainer> animation_container_;
 
   // Used for stage 1 of new tab animation.
   base::OneShotTimer<TabStrip> new_tab_timer_;
 
-  // Whether the new tab button is being displayed.
-  bool new_tab_button_enabled_;
-
   DISALLOW_COPY_AND_ASSIGN(TabStrip);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_TABS_TAB_STRIP_H_