Refleshes display info when the chrome://settings/display dialog gets visible.

chrome/browser/resources/options2/chromeos/display_options.js

Index: chrome/browser/resources/options2/chromeos/display_options.js
diff --git a/chrome/browser/resources/options2/chromeos/display_options.js b/chrome/browser/resources/options2/chromeos/display_options.js
index b855782aada56e838e8c736c60e4af0b9b127e66..b663d94209e89f1b1d5cbf079c0fe916913fd3ae 100644
--- a/chrome/browser/resources/options2/chromeos/display_options.js
+++ b/chrome/browser/resources/options2/chromeos/display_options.js
@@ -56,6 +56,13 @@ cr.define('options', function() {
       chrome.send('getDisplayInfo');
     },
 
+    /** @override */
+    onVisibilityChanged_: function() {
+      OptionsPage.prototype.onVisibilityChanged_(this);
+      if (this.visible)
+        chrome.send('getDisplayInfo');
+    },
+
     /**
      * Collects the current data and sends it to Chrome.
      * @private