Add OptionsUI and its handler for multiple displays.

chrome/browser/resources/options2/browser_options.js

Index: chrome/browser/resources/options2/browser_options.js
diff --git a/chrome/browser/resources/options2/browser_options.js b/chrome/browser/resources/options2/browser_options.js
index f8a0b2b6b03fc55f3ac9fd3379526e9009a32335..fcc581cd0230ec98d658790fad1d0a97ea1972d7 100644
--- a/chrome/browser/resources/options2/browser_options.js
+++ b/chrome/browser/resources/options2/browser_options.js
@@ -482,6 +482,15 @@ cr.define('options', function() {
         };
       }
 
+      // Display management section (CrOS only).
+      if (cr.isChromeOS) {
+        $('displayOptionsButton').onclick = function(event) {
+          OptionsPage.navigateToPage('display');
+          chrome.send('coreOptionsUserMetricsAction',
+                      ['Options_Display']);
+        }
+      }
+
       // Background mode section.
       if ($('backgroundModeCheckbox')) {
         cr.defineProperty($('backgroundModeCheckbox'),
@@ -1258,6 +1267,22 @@ cr.define('options', function() {
     },
 
     /**
+     * Activate the display options button on the System settings page.
+     * @private
+     */
+    showDisplayOptions_: function() {
+      $('display-options-section').hidden = false;
+    },
+
+    /**
+     * Deactivate the display options button on the System settings page.
+     * @private
+     */
+    hideDisplayOptions_: function() {
+      $('display-options-section').hidden = true;
+    },
+
+    /**
      * Activate the bluetooth settings section on the System settings page.
      * @private
      */
@@ -1357,6 +1382,7 @@ cr.define('options', function() {
     'addBluetoothDevice',
     'getStartStopSyncButton',
     'hideBluetoothSettings',
+    'hideDisplayOptions',
     'removeCloudPrintConnectorSection',
     'removeBluetoothDevice',
     'setAutoOpenFileTypesDisplayed',
@@ -1379,6 +1405,7 @@ cr.define('options', function() {
     'setupProxySettingsSection',
     'setVirtualKeyboardCheckboxState',
     'showBluetoothSettings',
+    'showDisplayOptions',
     'showMouseControls',
     'showTouchpadControls',
     'updateAccountPicture',