Show a local folder's size in QuickView.

ui/file_manager/file_manager/foreground/elements/files_metadata_entry.js

Index: ui/file_manager/file_manager/foreground/elements/files_metadata_entry.js
diff --git a/ui/file_manager/file_manager/foreground/elements/files_metadata_entry.js b/ui/file_manager/file_manager/foreground/elements/files_metadata_entry.js
index 9529411f17d06879ed51ad326985b929337180b2..5a910f28b456734c135451db06bcb057318d74ef 100644
--- a/ui/file_manager/file_manager/foreground/elements/files_metadata_entry.js
+++ b/ui/file_manager/file_manager/foreground/elements/files_metadata_entry.js
@@ -16,6 +16,19 @@ var FilesMetadataBox = Polymer({
       type: String,
       reflectToAttribtue: true,
     },
+
+    loading: {
+      type: Boolean,
+      reflectToAttribtue: true,
+      value: false,
+    },
   },
 
+  /**
+   * @param {boolean} loading
+   * @return {string} calssName for loading if loading is true.
+   */
+  setLoadingClass: function(loading) {

[fukino, 2016/09/06 09:12:45]

This function looks unnecessary.

[harukam, 2016/09/06 11:25:24]

Acknowledged.

+    return loading ? "loading" : "";
+  },
 });