Set viewer for all handles loaded in controllers

Summary:
I've replaced all `id(new PhabricatorObjectHandleData(...))->loadHandles()` by `$this->loadViewerHandles(...)`.
Lint caught one usage in a static method.

Test Plan: Displayed revision with sporadic author.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D3432

src/applications/diffusion/controller/DiffusionLastModifiedController.php

@@ -37,7 +37,7 @@ final class DiffusionLastModifiedController extends DiffusionController {
     }
 
     $phids = array_keys($phids);
-    $handles = id(new PhabricatorObjectHandleData($phids))->loadHandles();
+    $handles = $this->loadViewerHandles($phids);
 
     $output = DiffusionBrowseTableView::renderLastModifiedColumns(
       $drequest->getRepository(),