Move Extension into extensions namespace

chrome/browser/extensions/extension_special_storage_policy.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_EXTENSIONS_EXTENSION_SPECIAL_STORAGE_POLICY_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SPECIAL_STORAGE_POLICY_H_
 #pragma once
 
 #include <map>
 #include <string>
 
 #include "base/synchronization/lock.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/quota/special_storage_policy.h"
 
 class CookieSettings;
+
+namespace extensions {
 class Extension;
+}
 
 // Special rights are granted to 'extensions' and 'applications'. The
 // storage subsystems and the browsing data remover query this interface
 // to determine which origins have these rights.
 class ExtensionSpecialStoragePolicy : public quota::SpecialStoragePolicy {
  public:
   explicit ExtensionSpecialStoragePolicy(CookieSettings* cookie_settings);
 
   // quota::SpecialStoragePolicy methods used by storage subsystems and the
   // browsing data remover. These methods are safe to call on any thread.
   virtual bool IsStorageProtected(const GURL& origin) OVERRIDE;
   virtual bool IsStorageUnlimited(const GURL& origin) OVERRIDE;
   virtual bool IsStorageSessionOnly(const GURL& origin) OVERRIDE;
   virtual bool IsFileHandler(const std::string& extension_id) OVERRIDE;
   virtual bool HasSessionOnlyOrigins() OVERRIDE;
 
   // Methods used by the ExtensionService to populate this class.
-  void GrantRightsForExtension(const Extension* extension);
-  void RevokeRightsForExtension(const Extension* extension);
+  void GrantRightsForExtension(const extensions::Extension* extension);
+  void RevokeRightsForExtension(const extensions::Extension* extension);
   void RevokeRightsForAllExtensions();
 
  protected:
   virtual ~ExtensionSpecialStoragePolicy();
 
  private:
   class SpecialCollection {
    public:
     SpecialCollection();
     ~SpecialCollection();
 
     bool Contains(const GURL& origin);
     bool ContainsExtension(const std::string& extension_id);
-    void Add(const Extension* extension);
-    void Remove(const Extension* extension);
+    void Add(const extensions::Extension* extension);
+    void Remove(const extensions::Extension* extension);
     void Clear();
 
    private:
     typedef std::map<GURL, bool> CachedResults;
-    typedef std::map<std::string, scoped_refptr<const Extension> > Extensions;
+    typedef std::map<std::string, scoped_refptr<const extensions::Extension> >
+        Extensions;
     Extensions extensions_;
     CachedResults cached_results_;
   };
 
   void NotifyChanged();
 
   base::Lock lock_;  // Synchronize all access to the collections.
   SpecialCollection protected_apps_;
   SpecialCollection unlimited_extensions_;
   SpecialCollection file_handler_extensions_;
   scoped_refptr<CookieSettings> cookie_settings_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SPECIAL_STORAGE_POLICY_H_