Launch easy unlock setup app from chrome://settings.

chrome/common/extensions/extension_constants.h

 // 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 62 matching lines @@
 
   // The extension id of the bookmark manager.
   extern const char kBookmarkManagerId[];
 
   // The extension id of the Chrome component application.
   extern const char kChromeAppId[];
 
   // The extension id of the Cloud Print component application.
   extern const char kCloudPrintAppId[];
 
+  // The extension id of the Easy Unlock component application.
+  extern const char kEasyUnlockAppId[];
+
   // The extension id of the Enterprise Web Store component application.
   extern const char kEnterpriseWebStoreAppId[];
 
   // The extension id of GMail application.
   extern const char kGmailAppId[];
 
   // The extension id of the Google Doc application.
   extern const char kGoogleDocAppId[];
 
   // The extension id of the Google Play Music application.
@@ skipping 244 matching lines @@
     LAUNCH_CONTAINER_WINDOW,
     LAUNCH_CONTAINER_PANEL,
     LAUNCH_CONTAINER_TAB,
     // For platform apps, which don't actually have a container (they just get a
     // "onLaunched" event).
     LAUNCH_CONTAINER_NONE
   };
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_