Change the "Disable outdated plug-ins" lab to block them instead.

chrome/browser/plugin_updater.cc

 // Copyright (c) 2010 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/plugin_updater.h"
 
 #include <set>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 255 matching lines @@
 
   // Add the plugin files.
   for (std::vector<WebPluginInfo>::const_iterator it = plugins.begin();
        it != plugins.end();
        ++it) {
     plugins_list->Append(CreatePluginFileSummary(*it));
   }
 
   // Add the groups as well.
   for (size_t i = 0; i < groups.size(); ++i) {
-    // Don't save preferences for vulnerable pugins.
-    if (!CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kDisableOutdatedPlugins) ||
-        !groups[i].IsVulnerable()) {
-      plugins_list->Append(groups[i].GetSummary());
-    }
+    plugins_list->Append(groups[i].GetSummary());
   }
 }
 
 void PluginUpdater::NotifyPluginStatusChanged() {
   if (notify_pending_)
     return;
   notify_pending_ = true;
   MessageLoop::current()->PostTask(
       FROM_HERE,
       NewRunnableFunction(&PluginUpdater::OnNotifyPluginStatusChanged));
 }
 
 void PluginUpdater::OnNotifyPluginStatusChanged() {
   GetInstance()->notify_pending_ = false;
   NotificationService::current()->Notify(
       NotificationType::PLUGIN_ENABLE_STATUS_CHANGED,
       Source<PluginUpdater>(GetInstance()),
       NotificationService::NoDetails());
 }
 
 /*static*/
 PluginUpdater* PluginUpdater::GetInstance() {
   return Singleton<PluginUpdater>::get();
 }