Update Config app for handleRequest

Summary: Update all found callsites in Config.

Test Plan: Check setup issues, databases, edit a value, remove a warning, everything I could click on.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T8628

Differential Revision: https://secure.phabricator.com/D13727

src/applications/config/controller/PhabricatorConfigHistoryController.php

@@ -3,12 +3,12 @@
 final class PhabricatorConfigHistoryController
   extends PhabricatorConfigController {
 
-  public function processRequest() {
-    $request = $this->getRequest();
-    $user = $request->getUser();
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $id = $request->getURIData('id');
 
     $xactions = id(new PhabricatorConfigTransactionQuery())
-      ->setViewer($user)
+      ->setViewer($viewer)
       ->needComments(true)
       ->execute();
 
@@ -19,7 +19,7 @@ final class PhabricatorConfigHistoryController
     $view = $xaction->getApplicationTransactionViewObject();
 
     $timeline = $view
-      ->setUser($user)
+      ->setUser($viewer)
       ->setTransactions($xactions)
       ->setRenderAsFeed(true)
       ->setObjectPHID(PhabricatorPHIDConstants::PHID_VOID);