[webui] mark 2 files as deprecated

chrome/browser/resources/shared/js/i18n_template.js

 // 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.
 
 /**
+ * NOTE: The use of this file is deprecated. Use i18n_template2.js instead.
+ *
  * @fileoverview This is a simple template engine inspired by JsTemplates
  * optimized for i18n.
  *
  * It currently supports two handlers:
  *
  *   * i18n-content which sets the textContent of the element
  *
  *     <span i18n-content="myContent"></span>
  *     i18nTemplate.process(element, {'myContent': 'Content'});
  *
@@ skipping 95 matching lines @@
           handlers[name](element, att, obj);
         }
       }
     }
   }
 
   return {
     process: process
   };
 })();