options: fix guest mode showing advanced settings bug.

chrome/browser/resources/options/browser_options.js

Index: chrome/browser/resources/options/browser_options.js
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index e0d7865a891d343c9c50734be47ab3ddaed687b1..0eb90aadbbcd85aee6506f6dc680dba179459b52 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -834,6 +834,10 @@ cr.define('options', function() {
      * @private
      */
     showSection_: function(section, container, animate) {
+      if (section == $('advanced-settings') &&
+          !loadTimeData.getBoolean('allowAdvancedSettings')) {
+        return;
+      }
       // Delay starting the transition if animating so that hidden change will
       // be processed.
       if (animate) {