Make DrydockLease a policy-aware object

Summary: Ref T2015. DrydockLease predates widespread adoption of policies. Make it -- and its query -- policy aware.

Test Plan: Browsed leases from the web UI. Grepped for callsites.

Reviewers: btrahan

Reviewed By: btrahan

CC: hach-que, aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D7826

src/applications/drydock/controller/DrydockResourceViewController.php

@@ -29,8 +29,8 @@ final class DrydockResourceViewController extends DrydockController {
     $resource_uri = $this->getApplicationURI($resource_uri);
 
     $leases = id(new DrydockLeaseQuery())
+      ->setViewer($user)
       ->withResourceIDs(array($resource->getID()))
-      ->needResources(true)
       ->execute();
 
     $lease_list = $this->buildLeaseListView($leases);