[webui] mark 2 files as deprecated

chrome/browser/resources/shared/js/local_strings.js

 // 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.
 
-// TODO(arv): Namespace
-
 /**
+ * NOTE: The use of this file is deprecated. Use load_time_data.js instead.
+ *
  * The local strings get injected into the page using a variable named
  * {@code templateData}. This class provides a simpler interface to access those
  * strings.
  *
  * @param {Object} opt_templateData Optional object containing translated
  *     strings.  If this is not supplied during construction, it can be
  *     assigned to the templateData property after construction.  If all else
  *     fails, the value of window.templateDate will be used.
  * @constructor
  */
@@ skipping 57 matching lines @@
    * @param {...string} The extra values to include in the formatted output.
    * @return {string} The formatted string.
    */
   getStringF: function(id, var_args) {
     return replaceArgs(this.getString(id), arguments);
   },
 };
 
 // End of anonymous namespace.
 })();