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

chrome/browser/ui/cocoa/browser_window_cocoa.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_COCOA_BROWSER_WINDOW_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_COCOA_H_
 #pragma once
 
 #include "base/memory/scoped_nsobject.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 37 matching lines @@
   virtual void UpdateTitleBar();
   virtual void BookmarkBarStateChanged(
       BookmarkBar::AnimateChangeType change_type);
   virtual void UpdateDevTools();
   virtual void UpdateLoadingAnimations(bool should_animate);
   virtual void SetStarredState(bool is_starred);
   virtual gfx::Rect GetRestoredBounds() const;
   virtual gfx::Rect GetBounds() const;
   virtual bool IsMaximized() const;
   virtual bool IsMinimized() const;
+  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;
   virtual bool IsFullscreenBubbleVisible() const;
   virtual LocationBar* GetLocationBar() const;
   virtual void SetFocusToLocationBar(bool select_all);
@@ skipping 77 matching lines @@
   content::NotificationRegistrar registrar_;
   PrefChangeRegistrar pref_change_registrar_;
   Browser* browser_;  // weak, owned by controller
   BrowserWindowController* controller_;  // weak, owns us
   base::WeakPtrFactory<Browser> confirm_close_factory_;
   scoped_nsobject<NSString> pending_window_title_;
   ui::WindowShowState initial_show_state_;
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_COCOA_H_