Simplify policy header implementation

Summary: Instead of rendering this in all callers, just pass the object into the header and let it figure out how to format it.

Test Plan: Looked at Legalpad, Paste, and Pholio.

Reviewers: chad, btrahan

Reviewed By: chad

CC: aran

Differential Revision: https://secure.phabricator.com/D7039

src/applications/phame/controller/post/PhamePostViewController.php

@@ -34,11 +34,6 @@ final class PhamePostViewController extends PhameController {
     $actions = $this->renderActions($post, $user);
     $properties = $this->renderProperties($post, $user);
 
-    $descriptions = PhabricatorPolicyQuery::renderPolicyDescriptions(
-      $user,
-      $post,
-      true);
-
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->setActionList($actions);
     $crumbs->addCrumb(
@@ -50,8 +45,8 @@ final class PhamePostViewController extends PhameController {
     $nav->appendChild(
       id(new PHUIHeaderView())
         ->setHeader($post->getTitle())
-        ->addProperty(PHUIHeaderView::PROPERTY_POLICY,
-          $descriptions[PhabricatorPolicyCapability::CAN_VIEW]));
+        ->setUser($user)
+        ->setPolicyObject($post));
 
     if ($post->isDraft()) {
       $nav->appendChild(