Fix supervised user dialog close regression.

chrome/browser/resources/options/chromeos/display_options.js

Index: chrome/browser/resources/options/chromeos/display_options.js
diff --git a/chrome/browser/resources/options/chromeos/display_options.js b/chrome/browser/resources/options/chromeos/display_options.js
index a9da841925c8e37d27ce8abf594cd77b7e01a40e..5e80800f4accadbc38d5b4888b0c9069b90ce91e 100644
--- a/chrome/browser/resources/options/chromeos/display_options.js
+++ b/chrome/browser/resources/options/chromeos/display_options.js
@@ -198,18 +198,17 @@ cr.define('options', function() {
     didShowPage: function() {
       var optionTitles = document.getElementsByClassName(
           'selected-display-option-title');
+
       var maxSize = 0;
-      for (var i = 0; i < optionTitles.length; i++)
+      for (var i = 0; i < optionTitles.length; i++) {
         maxSize = Math.max(maxSize, optionTitles[i].clientWidth);
-      for (var i = 0; i < optionTitles.length; i++)
+      }
+
+      for (var i = 0; i < optionTitles.length; i++) {
         optionTitles[i].style.width = maxSize + 'px';
-    },
+      }
 
-    /** @override */
-    onVisibilityChanged_: function() {
-      Page.prototype.onVisibilityChanged_(this);
-      if (this.visible)
-        chrome.send('getDisplayInfo');
+      chrome.send('getDisplayInfo');
     },
 
     /**