Fix handling of minimized panel count

chrome/browser/ui/panels/panel.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_PANELS_PANEL_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_H_
 #pragma once
 
 #include "chrome/browser/ui/browser_window.h"
 
@@ skipping 208 matching lines @@
   NativePanel* native_panel() { return native_panel_; }
   Browser* browser() const { return browser_; }
 
   // May be NULL if panel is newly created and has not been positioned yet.
   PanelStrip* panel_strip() const { return panel_strip_; }
 
   // Sets the current panel strip that contains this panel.
   void SetPanelStrip(PanelStrip* new_strip);
 
   ExpansionState expansion_state() const { return expansion_state_; }
-  ExpansionState old_expansion_state() const { return old_expansion_state_; }
   const gfx::Size& min_size() const { return min_size_; }
   const gfx::Size& max_size() const { return max_size_; }
   bool auto_resizable() const { return auto_resizable_; }
 
   bool in_preview_mode() const { return in_preview_mode_; }
 
   bool draggable() const;
 
   // The restored size is the size of the panel when it is expanded.
   gfx::Size restored_size() const { return restored_size_; }
@@ skipping 89 matching lines @@
   // should not be affected by layout refresh. This is currently used by drag
   // controller to add a panel to the strip without causing its bounds to
   // change.
   bool in_preview_mode_;
 
   // Platform specifc implementation for panels.  It'd be one of
   // PanelBrowserWindowGtk/PanelBrowserView/PanelBrowserWindowCocoa.
   NativePanel* native_panel_;  // Weak, owns us.
 
   ExpansionState expansion_state_;
-  ExpansionState old_expansion_state_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(Panel);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_H_