Add key modifier on minimize/restore button click to minimize/restore all Panels for Mac.

chrome/browser/ui/panels/detached_panel_strip.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_DETACHED_PANEL_STRIP_H_
 #define CHROME_BROWSER_UI_PANELS_DETACHED_PANEL_STRIP_H_
 #pragma once
 
 #include <set>
 #include "base/basictypes.h"
@@ skipping 26 matching lines @@
   virtual panel::Resizability GetPanelResizability(
       const Panel* panel) const OVERRIDE;
   virtual void OnPanelResizedByMouse(Panel* panel,
                                      const gfx::Rect& new_bounds) OVERRIDE;
   virtual void OnPanelAttentionStateChanged(Panel* panel) OVERRIDE;
   virtual void OnPanelTitlebarClicked(Panel* panel,
                                       panel::ClickModifier modifier) OVERRIDE;
   virtual void ActivatePanel(Panel* panel) OVERRIDE;
   virtual void MinimizePanel(Panel* panel) OVERRIDE;
   virtual void RestorePanel(Panel* panel) OVERRIDE;
+  virtual void MinimizeAll() OVERRIDE;
+  virtual void RestoreAll() OVERRIDE;
   virtual bool CanMinimizePanel(const Panel* panel) const OVERRIDE;
   virtual bool IsPanelMinimized(const Panel* panel) const OVERRIDE;
   virtual void SavePanelPlacement(Panel* panel) OVERRIDE;
   virtual void RestorePanelToSavedPlacement() OVERRIDE;
   virtual void DiscardSavedPanelPlacement()  OVERRIDE;
   virtual void StartDraggingPanelWithinStrip(Panel* panel) OVERRIDE;
   virtual void DragPanelWithinStrip(Panel* panel,
                                     int delta_x,
                                     int delta_y) OVERRIDE;
   virtual void EndDraggingPanelWithinStrip(Panel* panel,
@@ skipping 23 matching lines @@
   // Collection of all panels.
   Panels panels_;
 
   // Used to save the placement information for a panel.
   PanelPlacement saved_panel_placement_;
 
   DISALLOW_COPY_AND_ASSIGN(DetachedPanelStrip);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_DETACHED_PANEL_STRIP_H_