Add extension API to change window show state using chrome.windows.update().

chrome/browser/ui/panels/panel.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_UI_PANELS_PANEL_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_H_
 #pragma once
 
 #include "chrome/browser/ui/browser_window.h"
 
@@ skipping 70 matching lines @@
   virtual void UpdateTitleBar() OVERRIDE;
   virtual void BookmarkBarStateChanged(
       BookmarkBar::AnimateChangeType change_type) OVERRIDE;
   virtual void UpdateDevTools() OVERRIDE;
   virtual void UpdateLoadingAnimations(bool should_animate) OVERRIDE;
   virtual void SetStarredState(bool is_starred) OVERRIDE;
   virtual gfx::Rect GetRestoredBounds() const OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
   virtual bool IsMaximized() const OVERRIDE;
   virtual bool IsMinimized() const OVERRIDE;
+  virtual void Maximize() OVERRIDE;
+  virtual void Minimize() OVERRIDE;
+  virtual void Restore() OVERRIDE;
   virtual void EnterFullscreen(
       const GURL& url, FullscreenExitBubbleType type) OVERRIDE;
   virtual void ExitFullscreen() OVERRIDE;
   virtual void UpdateFullscreenExitBubbleContent(
       const GURL& url,
       FullscreenExitBubbleType bubble_type) OVERRIDE;
   virtual bool IsFullscreen() const OVERRIDE;
   virtual bool IsFullscreenBubbleVisible() const OVERRIDE;
   virtual LocationBar* GetLocationBar() const OVERRIDE;
   virtual void SetFocusToLocationBar(bool select_all) OVERRIDE;
@@ skipping 150 matching lines @@
   // Stores the full height of the panel so we can restore it after it's
   // been minimized.
   int restored_height_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(Panel);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_H_