Resore cros wrench about navigation to chrome://settings/about.

chrome/common/url_constants.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.
 
 // Contains constants for known URLs and portions thereof.
 
 #ifndef CHROME_COMMON_URL_CONSTANTS_H_
 #define CHROME_COMMON_URL_CONSTANTS_H_
 #pragma once
 
@@ skipping 196 matching lines @@
 extern const char kContentSettingsSubPage[];
 extern const char kContentSettingsExceptionsSubPage[];
 extern const char kImportDataSubPage[];
 extern const char kInstantConfirmPage[];
 extern const char kLanguageOptionsSubPage[];
 extern const char kPersonalOptionsSubPage[];
 extern const char kPasswordManagerSubPage[];
 extern const char kSearchEnginesSubPage[];
 extern const char kSyncSetupSubPage[];
 #if defined(OS_CHROMEOS)
+extern const char kAboutOptionsSubPage[];
 extern const char kInternetOptionsSubPage[];
 extern const char kSystemOptionsSubPage[];
 #endif
 
 extern const char kSyncGoogleDashboardURL[];
 
 extern const char kPasswordManagerLearnMoreURL[];
 
 // General help link for Chrome.
 extern const char kChromeHelpURL[];
@@ skipping 23 matching lines @@
 // The URL for the "Learn more" page for the blocked plugin infobar.
 extern const char kBlockedPluginLearnMoreURL[];
 
 // Call near the beginning of startup to register Chrome's internal URLs that
 // should be parsed as "standard" with the googleurl library.
 void RegisterChromeSchemes();
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_URL_CONSTANTS_H_