Convert AphrontPanelView to safe HTML (except children)

Summary: Fixes some double escaping and potential XSS.

Test Plan: Looked at homepage.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2432

Differential Revision: https://secure.phabricator.com/D4917

src/applications/oauthserver/controller/PhabricatorOAuthServerAuthController.php

@@ -143,8 +143,7 @@ extends PhabricatorAuthController {
 
     // display time -- make a nice form for the user to grant the client
     // access to the granularity specified by $scope
-    $name  = phutil_escape_html($client->getName());
-    $title = 'Authorize ' . $name . '?';
+    $title = 'Authorize '.$client->getName().'?';
     $panel = new AphrontPanelView();
     $panel->setWidth(AphrontPanelView::WIDTH_FORM);
     $panel->setHeader($title);