Gallery: Filter out video files in the gallery.

ui/file_manager/gallery/js/background.js

Index: ui/file_manager/gallery/js/background.js
diff --git a/ui/file_manager/gallery/js/background.js b/ui/file_manager/gallery/js/background.js
index 144d61b0127bf4bc4ca3117cf0433228846001d6..8e053fb4975cdc4f07940faef4583c15ebee98f5 100644
--- a/ui/file_manager/gallery/js/background.js
+++ b/ui/file_manager/gallery/js/background.js
@@ -160,7 +160,7 @@ function launch(selectedEntriesPromise) {
     if (entries.length === 1) {
       var parentPromise = new Promise(entries[0].getParent.bind(entries[0]));
       return parentPromise.then(getChildren).then(function(entries) {
-        return entries.filter(FileType.isImageOrVideo);
+        return entries.filter(FileType.isImage);
       });
     } else {
       return entries;