Fix file type filter in Chrome OS Open/Save dialogs

chrome/browser/resources/file_manager/js/file_manager.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.
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
  * dialogs, as well as the full screen file manager application (though the
  * latter is not yet implemented).
@@ skipping 1407 matching lines @@
     this.fileTypeSelector_.addEventListener('change',
         this.updateFileTypeFilter_.bind(this));
   };
 
   /**
    * Filters file according to the selected file type.
    */
   FileManager.prototype.updateFileTypeFilter_ = function() {
     this.directoryModel_.removeFilter('fileType');
     var selectedIndex = Number(this.fileTypeSelector_.selectedIndex);
-    if (selectedIndex < 1)  // 'All files' or nothing selected.
-      return;
-    var regexp = new RegExp('.*(' +
-        this.fileTypes_[selectedIndex - 1].extensions.join('|') + ')$', 'i');
-    function filter(entry) {
-      return entry.isDirectory || regexp.test(entry.name);
+    if (selectedIndex >= 1) { // Specific filter selected.
+      var regexp = new RegExp('.*(' +
+          this.fileTypes_[selectedIndex - 1].extensions.join('|') + ')$', 'i');
+      function filter(entry) {
+        return entry.isDirectory || regexp.test(entry.name);
+      }
+      this.directoryModel_.addFilter('fileType', filter);
     }
-    this.directoryModel_.addFilter('fileType', filter);
+    this.directoryModel_.rescan();
   };
 
   /**
    * Respond to a command being executed.
    */
   FileManager.prototype.onCommand_ = function(event) {
     switch (event.command.id) {
       case 'cut':
       case 'copy':
       case 'paste':
@@ skipping 2785 matching lines @@
     }
 
     var defaultActionSeparator =
         this.dialogDom_.querySelector('#default-action-separator');
 
     this.defaultActionMenuItem_.hidden = !taskItem;
     defaultActionSeparator.hidden = !taskItem;
   }
 })();