Integrate About page into Settings for Chrome OS settings in a window.

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 d938e469aa6e2ba438bb1ed16df8f11a018424c9..0f7d1c5c5f41d8ee7fb1063d5c5383309bc3199e 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -130,6 +130,15 @@ cr.define('options', function() {
       $('advanced-settings').addEventListener('webkitTransitionEnd',
           this.updateAdvancedSettingsExpander_.bind(this));
 
+      if (cr.isChromeOS && loadTimeData.getBoolean('showVersion')) {
+        $('version-button').hidden = false;
+        $('version-button').addEventListener('click', function() {
+          PageManager.showPageByName('help');
+          chrome.send('coreOptionsUserMetricsAction',
+                      ['Options_About']);
+        });
+      }
+
       if (cr.isChromeOS) {
         UIAccountTweaks.applyGuestSessionVisibility(document);
         UIAccountTweaks.applyPublicSessionVisibility(document);