Move Extension into extensions namespace

chrome/browser/extensions/extension_infobar_delegate.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_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Browser;
-class Extension;
 class ExtensionHost;
 class GURL;
 
+namespace extensions {
+class Extension;
+}
+
 // The InfobarDelegate for creating and managing state for the ExtensionInfobar
 // plus monitor when the extension goes away.
 class ExtensionInfoBarDelegate : public InfoBarDelegate,
                                  public content::NotificationObserver {
  public:
   // The observer for when the delegate dies.
   class DelegateObserver {
    public:
     virtual void OnDelegateDeleted() = 0;
 
    protected:
     virtual ~DelegateObserver() {}
   };
 
   ExtensionInfoBarDelegate(Browser* browser,
                            InfoBarTabHelper* infobar_helper,
-                           const Extension* extension,
+                           const extensions::Extension* extension,
                            const GURL& url,
                            int height);
 
-  const Extension* extension() { return extension_; }
+  const extensions::Extension* extension() { return extension_; }
   ExtensionHost* extension_host() { return extension_host_.get(); }
   int height() { return height_; }
 
   void set_observer(DelegateObserver* observer) { observer_ = observer; }
 
   bool closing() const { return closing_; }
 
  private:
   virtual ~ExtensionInfoBarDelegate();
 
@@ skipping 13 matching lines @@
 
   // The extension host we are showing the InfoBar for. The delegate needs to
   // own this since the InfoBar gets deleted and recreated when you switch tabs
   // and come back (and we don't want the user's interaction with the InfoBar to
   // get lost at that point).
   scoped_ptr<ExtensionHost> extension_host_;
 
   // The observer monitoring when the delegate dies.
   DelegateObserver* observer_;
 
-  const Extension* extension_;
+  const extensions::Extension* extension_;
   content::NotificationRegistrar registrar_;
 
   // The requested height of the infobar (in pixels).
   int height_;
 
   // Whether we are currently animating to close. This is used to ignore
   // ExtensionView::PreferredSizeChanged notifications.
   bool closing_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_DELEGATE_H_