Files.app: Skip updating subdirectories of a volume whose display root is not gotten yet.

ui/file_manager/file_manager/background/js/volume_manager.js

Index: ui/file_manager/file_manager/background/js/volume_manager.js
diff --git a/ui/file_manager/file_manager/background/js/volume_manager.js b/ui/file_manager/file_manager/background/js/volume_manager.js
index 9c3850abe21ecaabe68371ec90f55c06d977dc1d..3e31aaa04d4a38bca319001a154a6062aa3f3c97 100644
--- a/ui/file_manager/file_manager/background/js/volume_manager.js
+++ b/ui/file_manager/file_manager/background/js/volume_manager.js
@@ -418,7 +418,7 @@ VolumeInfoList.prototype.findIndex = function(volumeId) {
 
 /**
  * Searches the information of the volume that contains the passed entry.
- * @param {Entry|Object} entry Entry on the volume to be found.
+ * @param {!Entry|!Object} entry Entry on the volume to be found.
  * @return {VolumeInfo} The volume's information, or null if not found.
  */
 VolumeInfoList.prototype.findByEntry = function(entry) {
@@ -814,7 +814,7 @@ VolumeManager.prototype.getCurrentProfileVolumeInfo = function(volumeType) {
 /**
  * Obtains location information from an entry.
  *
- * @param {(Entry|Object)} entry File or directory entry. It can be a fake
+ * @param {(!Entry|!Object)} entry File or directory entry. It can be a fake
  *     entry.
  * @return {EntryLocation} Location information.
  */