Remove native_stack accessor from StackedPanelCollection

chrome/browser/ui/panels/stacked_panel_collection.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_STACKED_PANEL_COLLECTION_H_
 #define CHROME_BROWSER_UI_PANELS_STACKED_PANEL_COLLECTION_H_
 
 #include <list>
 #include <vector>
 #include "base/basictypes.h"
@@ skipping 47 matching lines @@
   virtual void UpdatePanelOnCollectionChange(Panel* panel) OVERRIDE;
   virtual void OnPanelExpansionStateChanged(Panel* panel) OVERRIDE;
   virtual void OnPanelActiveStateChanged(Panel* panel) OVERRIDE;
 
   Panel* GetPanelAbove(Panel* panel) const;
   Panel* GetPanelBelow(Panel* panel) const;
   bool HasPanel(Panel* panel) const;
 
   void MoveAllDraggingPanelsInstantly(const gfx::Vector2d& delta_origin);
 
+  bool IsMinimized() const;
+
   // Returns the maximum available space from the bottom of the stack. The
   // maximum available space is defined as the distance between the bottom
   // of the stack and the bottom of the working area, assuming that all inactive
   // panels are collapsed.
   int GetMaximiumAvailableBottomSpace() const;
 
-  NativePanelStackWindow* native_stack() const { return native_stack_; }
   int num_panels() const { return panels_.size(); }
   const Panels& panels() const { return panels_; }
   Panel* top_panel() const { return panels_.empty() ? NULL : panels_.front(); }
   Panel* bottom_panel() const {
     return panels_.empty() ? NULL : panels_.back();
   }
   Panel* most_recently_active_panel() const {
     return most_recently_active_panels_.empty() ?
         NULL : most_recently_active_panels_.front();
   }
@@ skipping 55 matching lines @@
 
   // Used to save the placement information for a panel.
   PanelPlacement saved_panel_placement_;
 
   bool minimizing_all_;  // True while minimizing all panels.
 
   DISALLOW_COPY_AND_ASSIGN(StackedPanelCollection);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_STACKED_PANEL_COLLECTION_H_