MD Settings: First half of Device > Keyboard sub-page.

chrome/browser/resources/settings/device_page/device_page.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview 'settings-device-page' is the settings page for device and
  * peripheral settings.
  *
  * @group Chrome Settings Elements
  * @element settings-device-page
@@ skipping 19 matching lines @@
     },
   },
 
   /**
    * Handler for tapping the Touchpad settings menu item.
    * @private
    */
   onTouchpadTap_: function() {
     this.$.pages.setSubpageChain(['touchpad']);
   },
+
+  /**
+   * Handler for tapping the Keyboard settings menu item.
+   * @private
+   */
+  onKeyboardTap_: function() {
+    this.$.pages.setSubpageChain(['keyboard']);
+  },
 });