Check whether clearing LSO data is supported in clients of the BrowsingDataRemover.

chrome/browser/browsing_data_remover.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_BROWSING_DATA_REMOVER_H_
 #define CHROME_BROWSER_BROWSING_DATA_REMOVER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 241 matching lines @@
   // Tracking how many origins need to be deleted, and whether we're finished
   // gathering origins.
   int quota_managed_origins_to_delete_count_;
   int quota_managed_storage_types_to_delete_count_;
 
   ObserverList<Observer> observer_list_;
 
   // Used if we need to clear history.
   CancelableRequestConsumer request_consumer_;
 
-  // Keeps track of whether clearing LSO data is supported.
-  BooleanPrefMember clear_plugin_lso_data_enabled_;
-
   DISALLOW_COPY_AND_ASSIGN(BrowsingDataRemover);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_REMOVER_H_