Gallery.app: Update thumbnail when a file is edited on the photo editor.

ui/file_manager/gallery/js/image_editor/image_util.js

 // Copyright 2014 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';
 
 
 // Namespace object for the utilities.
 function ImageUtil() {}
 
@@ skipping 471 matching lines @@
         onError('GALLERY_IMAGE_TOO_BIG_ERROR');
         return;
       }
       transformFetcher(entry, onTransform.bind(this, e.target));
     }.bind(this);
 
     // The error callback has an optional error argument, which in case of a
     // general error should not be specified
     this.image_.onerror = onError.bind(this, 'GALLERY_IMAGE_ERROR');
 
-    // Extract the last modification date to determine if the cached image
-    // is outdated.
-    var modificationTime = opt_metadata &&
-                           opt_metadata.modificationTime &&
-                           opt_metadata.modificationTime.getTime();
-
-    // Load the image directly.
-    this.image_.src = entry.toURL();
+    // Load the image directly. The query parameter is needed to obtain the
+    // latest image just after editing it.  crbug.com/378648
+    this.image_.src = entry.toURL() + "?nocache=" + Date.now();

[mtomasz, 2014/06/02 06:40:28]

Does it happen on Downloads too? If so, then it seems to be a serious regression
in either Chromium or Blink. We should file a bug for it.

[hirono, 2014/06/02 08:59:15]

Yes it happens to Downloads too.
Filed: crbug.com/379678

[mtomasz, 2014/06/03 05:33:19]

Please write a comment that it is a workaround, and the proper fix is tracked at
crbug.com/379678. Otherwise, we will never remove this workaround.

[hirono, 2014/06/03 07:51:45]

Done.

   }.bind(this);
 
   // Loads the image. If already loaded, then forces a reload.
   var startLoad = this.resetImage_.bind(this, function() {
     // Fetch metadata to detect last modification time for the caching purpose.
     if (this.metadataCache_)
       this.metadataCache_.get(entry, 'filesystem', loadImage);
     else
       loadImage();
   }.bind(this), onError);
@@ skipping 182 matching lines @@
  * @return {string} Full name.
  */
 ImageUtil.getMetricName = function(name) {
   return 'PhotoEditor.' + name;
 };
 
 /**
  * Used for metrics reporting, keep in sync with the histogram description.
  */
 ImageUtil.FILE_TYPES = ['jpg', 'png', 'gif', 'bmp', 'webp'];