Revert "Enable checks for outdated plugins even when third-party plugin installation is not enabled"

chrome/browser/ui/webui/plugins_ui.cc

 // 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.
 
 #include "chrome/browser/ui/webui/plugins_ui.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 440 matching lines @@
       plugin_files->Append(plugin_file);
     }
     base::DictionaryValue* group_data = new base::DictionaryValue();
 
     group_data->Set("plugin_files", plugin_files);
     group_data->SetString("name", group_name);
     group_data->SetString("id", group_identifier);
     group_data->SetString("description", active_plugin->desc);
     group_data->SetString("version", active_plugin->version);
 
+#if defined(ENABLE_PLUGIN_INSTALLATION)
     bool out_of_date = plugin_metadata->GetSecurityStatus(*active_plugin) ==
         PluginMetadata::SECURITY_STATUS_OUT_OF_DATE;
     group_data->SetBoolean("critical", out_of_date);
     group_data->SetString("update_url", plugin_metadata->plugin_url().spec());
+#endif
 
     std::string enabled_mode;
     if (all_plugins_enabled_by_policy) {
       enabled_mode = "enabledByPolicy";
     } else if (all_plugins_disabled_by_policy) {
       enabled_mode = "disabledByPolicy";
     } else if (all_plugins_managed_by_policy) {
       enabled_mode = "managedByPolicy";
     } else if (group_enabled) {
       enabled_mode = "enabledByUser";
@@ skipping 42 matching lines @@
 }
 
 // static
 void PluginsUI::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterBooleanPref(prefs::kPluginsShowDetails, false);
   registry->RegisterDictionaryPref(
       prefs::kContentSettingsPluginWhitelist,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
 }