Move Extension into extensions namespace

chrome/browser/ui/views/extensions/shell_window_views.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_VIEWS_EXTENSIONS_SHELL_WINDOW_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_SHELL_WINDOW_VIEWS_H_
 #pragma once
 
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/scoped_sk_region.h"
 #include "ui/views/controls/native/native_view_host.h"
 #include "ui/views/widget/widget_delegate.h"
 
 class Profile;
 
+namespace extensions {
+class Extension;
+}
+
 class ShellWindowViews : public ShellWindow,
                          public views::NativeViewHost,
                          public views::WidgetDelegate {
  public:
   ShellWindowViews(Profile* profile,
-                   const Extension* extension,
+                   const extensions::Extension* extension,
                    const GURL& url);
 
   // BaseWindow implementation.
   virtual bool IsActive() const OVERRIDE;
   virtual bool IsMaximized() const OVERRIDE;
   virtual bool IsMinimized() const OVERRIDE;
   virtual bool IsFullscreen() const OVERRIDE;
   virtual gfx::Rect GetRestoredBounds() const OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
   virtual void Show() OVERRIDE;
@@ skipping 41 matching lines @@
   views::Widget* window_;
 
   gfx::ScopedSkRegion caption_region_;
 
   bool use_native_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellWindowViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_SHELL_WINDOW_VIEWS_H_