Files.app: updateGearMenu_ should be called against the new volume info.

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

Index: ui/file_manager/file_manager/foreground/js/file_manager.js
diff --git a/ui/file_manager/file_manager/foreground/js/file_manager.js b/ui/file_manager/file_manager/foreground/js/file_manager.js
index b1b9cbb2d1f830137cfc31907afaf5afb799a419..8e1d5eef7cc715c3c68ef16994ac06692dde0e8c 100644
--- a/ui/file_manager/file_manager/foreground/js/file_manager.js
+++ b/ui/file_manager/file_manager/foreground/js/file_manager.js
@@ -2346,21 +2346,21 @@ var BOTTOM_MARGIN_FOR_PREVIEW_PANEL_PX = 52;
    * @private
    */
   FileManager.prototype.onDirectoryChanged_ = function(event) {
-    var newCurrentVolumeInfo = this.volumeManager_.getVolumeInfo(
+    var oldCurrentVolumeInfo = this.currentVolumeInfo_;
+
+    // Remember the current volume info.
+    this.currentVolumeInfo_ = this.volumeManager_.getVolumeInfo(
         event.newDirEntry);
 
     // If volume has changed, then update the gear menu.
-    if (this.currentVolumeInfo_ !== newCurrentVolumeInfo) {
+    if (oldCurrentVolumeInfo !== this.currentVolumeInfo_) {
       this.updateGearMenu_();
       // If the volume has changed, and it was previously set, then do not
       // close on unmount anymore.
-      if (this.currentVolumeInfo_)
+      if (oldCurrentVolumeInfo)
         this.closeOnUnmount_ = false;
     }
 
-    // Remember the current volume info.
-    this.currentVolumeInfo_ = newCurrentVolumeInfo;
-
     this.selectionHandler_.onFileSelectionChanged();
     this.ui_.searchBox.clear();
     // TODO(mtomasz): Consider remembering the selection.