[FileBrowser] Fixed GDrive auto-refresh on settings altering.

chrome/browser/resources/file_manager/js/file_manager.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
  * dialogs, as well as the full screen file manager application (though the
  * latter is not yet implemented).
@@ skipping 2796 matching lines @@
       if (self.isGDataEnabled())
         self.setupGDataWelcome_();
       else
         self.cleanupGDataWelcome_();
 
       if (gdata.cellularDisabled)
         self.syncButton.setAttribute('checked', '');
       else
         self.syncButton.removeAttribute('checked');
 
+      if (self.hostedButton.hasAttribute('checked') !=
+          gdata.hostedFilesDisabled && self.isOnGData()) {
+        self.directoryModel_.rescan();
+      }
+
       if (!gdata.hostedFilesDisabled)
         self.hostedButton.setAttribute('checked', '');
       else
         self.hostedButton.removeAttribute('checked');
 
       if (network.online) {
         if (gdata.cellularDisabled && network.type == 'cellular')
           self.dialogContainer_.setAttribute('connection', 'metered');
         else
           self.dialogContainer_.removeAttribute('connection');
@@ skipping 1749 matching lines @@
     function closeBanner() {
       self.cleanupGDataWelcome_();
       // Stop showing the welcome banner.
       localStorage[WELCOME_HEADER_COUNTER_KEY] = WELCOME_HEADER_COUNTER_LIMIT;
     }
 
     return maybeShowBanner;
   };
 })();