Use PluginPrefs in ChromePluginServiceFilter to check whether a plugin is enabled.

chrome/browser/browsing_data_remover.cc

 // 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.
 
 #include "chrome/browser/browsing_data_remover.h"
 
 #include <map>
 #include <set>
 
 #include "base/callback.h"
@@ skipping 253 matching lines @@
       prerender_manager->ClearData(
           prerender::PrerenderManager::CLEAR_PRERENDER_CONTENTS);
     }
   }
 
   if (remove_mask & REMOVE_LSO_DATA) {
     UserMetrics::RecordAction(UserMetricsAction("ClearBrowsingData_LSOData"));
 
     waiting_for_clear_lso_data_ = true;
     if (!plugin_data_remover_.get())
-      plugin_data_remover_ = new PluginDataRemover();
+      plugin_data_remover_ = new PluginDataRemover(profile_);
     base::WaitableEvent* event =
         plugin_data_remover_->StartRemoving(delete_begin_);
     watcher_.StartWatching(event, this);
   }
 
   NotifyAndDeleteIfDone();
 }
 
 void BrowsingDataRemover::AddObserver(Observer* observer) {
   observer_list_.AddObserver(observer);
@@ skipping 240 matching lines @@
       NewRunnableMethod(
           this,
           &BrowsingDataRemover::NotifyAndDeleteIfDone));
 }
 
 void BrowsingDataRemover::OnWaitableEventSignaled(
     base::WaitableEvent* waitable_event) {
   waiting_for_clear_lso_data_ = false;
   NotifyAndDeleteIfDone();
 }