Gallery: Fix property names referred in the Ribbon class.

Previously the gallery's ribbon refers oldUrl property that was replaced with
oldEntry.
This causes a bug to fail update the ribbon's cache.

BUG=373167
TEST=manually
R=mtomasz@chromium.org

Review URL: https://codereview.chromium.org/287063006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@270947 0039d316-1c4b-4281-b951-d872f2087c98

ui/file_manager/file_manager/foreground/js/photo/ribbon.js

@@ -344,7 +344,7 @@ Ribbon.prototype.setThumbnailImage_ = function(thumbnail, entry, metadata) {
  */
 Ribbon.prototype.onContentChange_ = function(event) {
   var url = event.item.getEntry().toURL();
-  this.remapCache_(event.oldUrl, url);
+  this.remapCache_(event.oldEntry.toURL(), url);
 
   var thumbnail = this.renderCache_[url];
   if (thumbnail && event.metadata)

ui/file_manager/gallery/js/ribbon.js

@@ -344,7 +344,7 @@ Ribbon.prototype.setThumbnailImage_ = function(thumbnail, entry, metadata) {
  */
 Ribbon.prototype.onContentChange_ = function(event) {
   var url = event.item.getEntry().toURL();
-  this.remapCache_(event.oldUrl, url);
+  this.remapCache_(event.oldEntry.toURL(), url);
 
   var thumbnail = this.renderCache_[url];
   if (thumbnail && event.metadata)