[Files.app] Update the filelist on delete-only filechange event

ui/file_manager/file_manager/foreground/js/directory_model.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.
 
 'use strict';
 
 // If directory files changes too often, don't rescan directory more than once
 // per specified interval
 var SIMULTANEOUS_RESCAN_INTERVAL = 1000;
 // Used for operations that require almost instant rescan.
@@ skipping 165 matching lines @@
       // Removes the metadata of invalid entries.
       if (result.failureUrls.length > 0)
         this.metadataCache_.clearByUrl(result.failureUrls, '*');
 
       // Rescans after force-refreshing the metadata of the changed entries.
       var entries = result.entries;
       if (entries.length) {
         this.currentDirContents_.prefetchMetadata(entries, true, function() {
           this.rescanSoon(false);
         }.bind(this));
+      } else {
+        this.rescanSoon(false);
       }
     }.bind(this)).catch(function(error) {
       console.error('Error in proceeding the changed event.', error,
                     'Fallback to force-refresh');
       this.rescanSoon(true);
     }.bind(this));
   } else {
     // Invokes force refresh if the detailed information isn't provided.
     this.rescanSoon(true);
   }
@@ skipping 833 matching lines @@
   if (this.onSearchCompleted_) {
     this.removeEventListener('scan-completed', this.onSearchCompleted_);
     this.onSearchCompleted_ = null;
   }
 
   if (this.onClearSearch_) {
     this.onClearSearch_();
     this.onClearSearch_ = null;
   }
 };