Add warning message to downloads directory

chrome/browser/resources/file_manager/js/util.js

 // 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.
 
 /**
  * Namespace for utility functions.
  */
 var util = {
   /**
    * Returns a function that console.log's its arguments, prefixed by |msg|.
@@ skipping 39 matching lines @@
 
   getFileErrorMnemonic: function(code) {
     for (var key in FileError) {
       if (key.search(/_ERR$/) != -1 && FileError[key] == code)
         return key;
     }
 
     return code;
   },
 
+  htmlUnescape: function(str) {
+    return str.replace(/&(lt|gt|amp);/g, function(entity) {
+      switch (entity) {
+        case '&lt;': return '<';
+        case '&gt;': return '>';
+        case '&amp;': return '&';
+      }
+    });
+  },
+
   /**
    * Given a list of Entries, recurse any DirectoryEntries, and call back
    * with a list of all file and directory entries encountered (including the
    * original set).
    */
   recurseAndResolveEntries: function(entries, successCallback, errorCallback) {
     var pendingSubdirectories = 0;
     var pendingFiles = 0;
 
     var dirEntries = [];
@@ skipping 304 matching lines @@
       if (typeof(arg) == 'string') {
         element.appendChild(document.createTextNode(arg));
       } else {
         element.appendChild(arg);
       }
     }
 
     return element;
   }
 };