Files.app: allow stretching thumbnails in file list.

ui/file_manager/file_manager/foreground/js/ui/file_table.js

Index: ui/file_manager/file_manager/foreground/js/ui/file_table.js
diff --git a/ui/file_manager/file_manager/foreground/js/ui/file_table.js b/ui/file_manager/file_manager/foreground/js/ui/file_table.js
index a271a8c440b0d777ba1738128edf7cbbb88cf640..9147bd8592bd2e971e7bfea5b73e3bb3a912d004 100644
--- a/ui/file_manager/file_manager/foreground/js/ui/file_table.js
+++ b/ui/file_manager/file_manager/foreground/js/ui/file_table.js
@@ -792,7 +792,7 @@ FileTable.prototype.renderThumbnail_ = function(entry) {
         function(metadata) {
           var loader = new ThumbnailLoader(
               entry, ThumbnailLoader.LoaderType.IMAGE, metadata);
-          loader.load(box, ThumbnailLoader.FillMode.FILL,
+          loader.load(box, ThumbnailLoader.FillMode.OVER_FILL,
                       ThumbnailLoader.OptimizationMode.DISCARD_DETACHED,
                       function(image, transform) {
                         box.classList.add('loaded');