Update some inline comment logic to use more modern "Viewer"-oriented calls/variables

Summary:
Ref T13195. Ref T8573. The inline comment controllers currently use outdated `$user = $this->getRequest()->getUser()` calls.

Instead, use `$viewer = $this->getViewer()`.

This is just a small consistency update with no behavioral changes.

Test Plan: Viewed and added inlines in Differential and Diffusion.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13195, T8573

Differential Revision: https://secure.phabricator.com/D19633

src/applications/differential/controller/DifferentialInlineCommentEditController.php

@@ -77,19 +77,17 @@ final class DifferentialInlineCommentEditController
   }
 
   protected function loadCommentForEdit($id) {
-    $request = $this->getRequest();
-    $user = $request->getUser();
+    $viewer = $this->getViewer();
 
     $inline = $this->loadComment($id);
-    if (!$this->canEditInlineComment($user, $inline)) {
+    if (!$this->canEditInlineComment($viewer, $inline)) {
       throw new Exception(pht('That comment is not editable!'));
     }
     return $inline;
   }
 
   protected function loadCommentForDone($id) {
-    $request = $this->getRequest();
-    $viewer = $request->getUser();
+    $viewer = $this->getViewer();
 
     $inline = $this->loadComment($id);
     if (!$inline) {
@@ -128,11 +126,11 @@ final class DifferentialInlineCommentEditController
   }
 
   private function canEditInlineComment(
-    PhabricatorUser $user,
+    PhabricatorUser $viewer,
     DifferentialInlineComment $inline) {
 
     // Only the author may edit a comment.
-    if ($inline->getAuthorPHID() != $user->getPHID()) {
+    if ($inline->getAuthorPHID() != $viewer->getPHID()) {
       return false;
     }
 

src/applications/diffusion/controller/DiffusionInlineCommentController.php

@@ -50,19 +50,17 @@ final class DiffusionInlineCommentController
   }
 
   protected function loadCommentForEdit($id) {
-    $request = $this->getRequest();
-    $user = $request->getUser();
+    $viewer = $this->getViewer();
 
     $inline = $this->loadComment($id);
-    if (!$this->canEditInlineComment($user, $inline)) {
+    if (!$this->canEditInlineComment($viewer, $inline)) {
       throw new Exception(pht('That comment is not editable!'));
     }
     return $inline;
   }
 
   protected function loadCommentForDone($id) {
-    $request = $this->getRequest();
-    $viewer = $request->getUser();
+    $viewer = $this->getViewer();
 
     $inline = $this->loadComment($id);
     if (!$inline) {
@@ -86,11 +84,11 @@ final class DiffusionInlineCommentController
   }
 
   private function canEditInlineComment(
-    PhabricatorUser $user,
+    PhabricatorUser $viewer,
     PhabricatorAuditInlineComment $inline) {
 
     // Only the author may edit a comment.
-    if ($inline->getAuthorPHID() != $user->getPHID()) {
+    if ($inline->getAuthorPHID() != $viewer->getPHID()) {
       return false;
     }
 

src/infrastructure/diff/PhabricatorInlineCommentController.php

@@ -88,7 +88,7 @@ abstract class PhabricatorInlineCommentController
 
   public function processRequest() {
     $request = $this->getRequest();
-    $user = $request->getUser();
+    $viewer = $this->getViewer();
 
     $this->readRequestParameters();
 
@@ -221,7 +221,7 @@ abstract class PhabricatorInlineCommentController
 
         $inline = $this->createComment()
           ->setChangesetID($this->getChangesetID())
-          ->setAuthorPHID($user->getPHID())
+          ->setAuthorPHID($viewer->getPHID())
           ->setLineNumber($this->getLineNumber())
           ->setLineLength($this->getLineLength())
           ->setIsNewFile($this->getIsNewFile())
@@ -313,10 +313,10 @@ abstract class PhabricatorInlineCommentController
 
   private function buildEditDialog() {
     $request = $this->getRequest();
-    $user = $request->getUser();
+    $viewer = $this->getViewer();
 
     $edit_dialog = id(new PHUIDiffInlineCommentEditView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->setSubmitURI($request->getRequestURI())
       ->setIsOnRight($this->getIsOnRight())
       ->setIsNewFile($this->getIsNewFile())
@@ -342,22 +342,22 @@ abstract class PhabricatorInlineCommentController
     $on_right) {
 
     $request = $this->getRequest();
-    $user = $request->getUser();
+    $viewer = $this->getViewer();
 
     $engine = new PhabricatorMarkupEngine();
-    $engine->setViewer($user);
+    $engine->setViewer($viewer);
     $engine->addObject(
       $inline,
       PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
     $engine->process();
 
-    $phids = array($user->getPHID());
+    $phids = array($viewer->getPHID());
 
     $handles = $this->loadViewerHandles($phids);
     $object_owner_phid = $this->loadObjectOwnerPHID($inline);
 
     $view = id(new PHUIDiffInlineCommentDetailView())
-      ->setUser($user)
+      ->setUser($viewer)
       ->setInlineComment($inline)
       ->setIsOnRight($on_right)
       ->setMarkupEngine($engine)
@@ -378,7 +378,7 @@ abstract class PhabricatorInlineCommentController
 
   private function renderTextArea($text) {
     return id(new PhabricatorRemarkupControl())
-      ->setUser($this->getRequest()->getUser())
+      ->setViewer($this->getViewer())
       ->setSigil('differential-inline-comment-edit-textarea')
       ->setName('text')
       ->setValue($text)