Update UIExamples for newPage

Summary: clever commit summary

Test Plan: clever test plan

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D15583

src/applications/uiexample/controller/PhabricatorUIExampleRenderController.php

@@ -50,11 +50,9 @@ final class PhabricatorUIExampleRenderController extends PhabricatorController {
         $result,
       ));
 
-    return $this->buildApplicationPage(
+    return $this->newPage()
-      $nav,
+      ->setTitle($example->getName())
-      array(
+      ->appendChild($nav);
-        'title'   => $example->getName(),
-      ));
   }
 
 }