MD Settings: Hooking up router to navigate to dummy About page.

chrome/browser/resources/settings/settings_main/settings_main.js

 // Copyright 2015 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-main' displays the selected settings page.
  *
  * Example:
  *
@@ skipping 18 matching lines @@
 
     /**
      * The current active route.
      */
     currentRoute: {
       type: Object,
       notify: true,
       observer: 'currentRouteChanged_',
     },
 
-    // If false the 'basic' page should be shown.
-    showAdvancedPage_: {
-      type: Boolean,
-      value: false
-    }
+    /** @private */
+    showAdvancedPage_: Boolean,
+
+    /** @private */
+    showBasicPage_: Boolean,
+
+    /** @private */
+    showAboutPage_: Boolean,
   },
 
   /** @private */

[dschuyler, 2016/05/05 21:58:20]

nit:
@param {SettingsRoute} newRoute blah blah.

[dpapad, 2016/05/05 22:13:53]

Done.

   currentRouteChanged_: function(newRoute, oldRoute) {

[dschuyler, 2016/05/05 21:58:20]

Let's remove oldRoute (or add an @param for it,
but it's not used and we commonly leave off the
second param from changed handlers).

[dpapad, 2016/05/05 22:13:53]

Done.

+    this.showAboutPage_ = newRoute.page == 'about';
     this.showAdvancedPage_ = newRoute.page == 'advanced';
+    this.showBasicPage_ = newRoute.page == 'basic';
   },
 });