ifdef remaining extensions code in chrome/browser/browsing_data.

chrome/browser/browsing_data/browsing_data_remover.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_BROWSING_DATA_BROWSING_DATA_REMOVER_H_
 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_REMOVER_H_
 
 #include <set>
 
 #include "base/gtest_prod_util.h"
@@ skipping 370 matching lines @@
 #endif
 
   void OnClearedDomainReliabilityMonitor();
 
   // Returns true if we're all done.
   bool AllDone();
 
   // Profile we're to remove from.
   Profile* profile_;
 
-  // 'Protected' origins are not subject to data removal.
-  scoped_refptr<ExtensionSpecialStoragePolicy> special_storage_policy_;

[Lei Zhang, 2014/07/30 21:28:38]

I can't tell if this exists simply to add a reference to the policy, or if it is
truly unused.

[Mike West, 2014/07/31 06:32:39]

I think it's safe to remove, thanks!

-
   // Start time to delete from.
   const base::Time delete_begin_;
 
   // End time to delete to.
   base::Time delete_end_;
 
   // True if Remove has been invoked.
   static bool is_removing_;
 
   // If non-NULL, the |completion_inhibitor_| is notified each time an instance
@@ skipping 59 matching lines @@
 
   scoped_ptr<TemplateURLService::Subscription> template_url_sub_;
 
   // We do not own this.
   content::StoragePartition* storage_partition_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowsingDataRemover);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_REMOVER_H_