Move Extension into extensions namespace

chrome/browser/chromeos/offline/offline_load_page.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_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_
 #define CHROME_BROWSER_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_
 #pragma once
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "content/public/browser/interstitial_page_delegate.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/network_change_notifier.h"
 
-class Extension;
-
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class InterstitialPage;
 class WebContents;
 }
 
+namespace extensions {
+class Extension;
+}
+
 namespace chromeos {
 
 // OfflineLoadPage class shows the interstitial page that is shown
 // when no network is available and hides when some network (either
 // one of wifi, 3g or ethernet) becomes available.
 // It deletes itself when the interstitial page is closed.
 class OfflineLoadPage : public content::InterstitialPageDelegate,
                         public net::NetworkChangeNotifier::OnlineStateObserver {
  public:
   // Passed a boolean indicating whether or not it is OK to proceed with the
@@ skipping 22 matching lines @@
   virtual void OverrideRendererPrefs(
       content::RendererPreferences* prefs) OVERRIDE;
   virtual void OnProceed() OVERRIDE;
   virtual void OnDontProceed() OVERRIDE;
 
   // net::NetworkChangeNotifier::OnlineStateObserver overrides.
   virtual void OnOnlineStateChanged(bool online) OVERRIDE;
 
   // Retrieves template strings of the offline page for app and
   // normal site.
-  void GetAppOfflineStrings(const Extension* app,
+  void GetAppOfflineStrings(const extensions::Extension* app,
                             const string16& faield_url,
                             base::DictionaryValue* strings) const;
   void GetNormalOfflineStrings(const string16& faield_url,
                                base::DictionaryValue* strings) const;
 
   // True if there is a mobile network is available but
   // has not been activated.
   bool ShowActivationMessage();
 
   CompletionCallback callback_;
 
   // True if the proceed is chosen.
   bool proceeded_;
 
   content::WebContents* web_contents_;
   GURL url_;
   content::InterstitialPage* interstitial_page_;  // Owns us.
 
   DISALLOW_COPY_AND_ASSIGN(OfflineLoadPage);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_