diff --git a/core/core.services.yml b/core/core.services.yml
index c07c2f8..6ac5a73 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -636,7 +636,7 @@ services:
       - { name: event_subscriber }
   controller.page:
     class: Drupal\Core\Controller\HtmlPageController
-    arguments: ['@controller_resolver', '@title_resolver', '@render_array_renderer']
+    arguments: ['@controller_resolver', '@title_resolver', '@render_html_renderer']
   controller.ajax:
     class: Drupal\Core\Controller\AjaxController
     arguments: ['@controller_resolver', '@ajax_response_renderer']
@@ -662,7 +662,7 @@ services:
     tags:
       - { name: event_subscriber }
     arguments: ['@html_fragment_renderer', '@html_page_renderer']
-  render_array_renderer:
+  render_html_renderer:
     class: Drupal\Core\Page\RenderHtmlRenderer
     arguments: ['@url_generator']
   html_fragment_renderer:
diff --git a/core/lib/Drupal/Core/Controller/HtmlControllerBase.php b/core/lib/Drupal/Core/Controller/HtmlControllerBase.php
index 1050ebf..277a3a4 100644
--- a/core/lib/Drupal/Core/Controller/HtmlControllerBase.php
+++ b/core/lib/Drupal/Core/Controller/HtmlControllerBase.php
@@ -27,23 +27,23 @@ class HtmlControllerBase {
   protected $titleResolver;
 
   /**
-   * The render array converter.
+   * The render array to HTML fragment converter.
    *
    * @var \Drupal\Core\Page\RenderHtmlRendererInterface
    */
-  protected $renderConverter;
+  protected $renderHtmlRenderer;
 
   /**
    * Constructs a new HtmlControllerBase object.
    *
    * @param \Drupal\Core\Controller\TitleResolverInterface $title_resolver
    *   The title resolver.
-   * @param \Drupal\Core\Page\RenderHtmlRendererInterface $render_converter
-   *   The render array converter.
+   * @param \Drupal\Core\Page\RenderHtmlRendererInterface $render_html_renderer
+   *   The render html renderer.
    */
-  public function __construct(TitleResolverInterface $title_resolver, RenderHtmlRendererInterface $render_converter) {
+  public function __construct(TitleResolverInterface $title_resolver, RenderHtmlRendererInterface $render_html_renderer) {
     $this->titleResolver = $title_resolver;
-    $this->renderConverter = $render_converter;
+    $this->renderHtmlRenderer = $render_html_renderer;
   }
 
   /**
@@ -67,7 +67,7 @@ protected function createHtmlFragment($page_content, Request $request) {
       $page_content = ['#markup' => $page_content];
     }
 
-    $fragment = $this->renderConverter->render($page_content);
+    $fragment = $this->renderHtmlRenderer->render($page_content);
 
     if (!$fragment->getTitle() && $route = $request->attributes->get(RouteObjectInterface::ROUTE_OBJECT)) {
       $fragment->setTitle($this->titleResolver->getTitle($request, $route), Title::PASS_THROUGH);
diff --git a/core/lib/Drupal/Core/Controller/HtmlPageController.php b/core/lib/Drupal/Core/Controller/HtmlPageController.php
index 216356d..83d5658 100644
--- a/core/lib/Drupal/Core/Controller/HtmlPageController.php
+++ b/core/lib/Drupal/Core/Controller/HtmlPageController.php
@@ -7,9 +7,7 @@
 
 namespace Drupal\Core\Controller;
 
-use Drupal\Core\Page\RenderHtmlRenderer;
 use Drupal\Core\Page\RenderHtmlRendererInterface;
-use Drupal\Core\Routing\UrlGeneratorInterface;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
@@ -31,11 +29,11 @@ class HtmlPageController extends HtmlControllerBase {
    *   The controller resolver.
    * @param \Drupal\Core\Controller\TitleResolverInterface $title_resolver
    *   The title resolver.
-   * @param \Drupal\Core\Page\RenderHtmlRendererInterface
-   *   The render array converter.
+   * @param \Drupal\Core\Page\RenderHtmlRendererInterface $render_html_renderer
+   *   The render html renderer.
    */
-  public function __construct(ControllerResolverInterface $controller_resolver, TitleResolverInterface $title_resolver, RenderHtmlRendererInterface $render_converter) {
-    parent::__construct($title_resolver, $render_converter);
+  public function __construct(ControllerResolverInterface $controller_resolver, TitleResolverInterface $title_resolver, RenderHtmlRendererInterface $render_html_renderer) {
+    parent::__construct($title_resolver, $render_html_renderer);
 
     $this->controllerResolver = $controller_resolver;
   }
diff --git a/core/lib/Drupal/Core/Page/RenderHtmlRenderer.php b/core/lib/Drupal/Core/Page/RenderHtmlRenderer.php
index e4ecd8d..f3c166c 100644
--- a/core/lib/Drupal/Core/Page/RenderHtmlRenderer.php
+++ b/core/lib/Drupal/Core/Page/RenderHtmlRenderer.php
@@ -11,12 +11,15 @@
 use Drupal\Core\Utility\Title;
 
 /**
- * Default render array renderer.
+ * Provides an implementation for an render array to HTML fragment renderer.
+ *
+ * This renderer takes into account the cache information, the attached assets
+ * as well as the title and HTML HEAD elements.
  */
 class RenderHtmlRenderer implements RenderHtmlRendererInterface {
 
   /**
-   * Url generator service.
+   * The URL generator.
    *
    * @var \Drupal\Core\Routing\UrlGeneratorInterface
    */
@@ -25,18 +28,17 @@ class RenderHtmlRenderer implements RenderHtmlRendererInterface {
   /**
    * Constructs a new RenderHtmlRenderer.
    *
-   * @param \Drupal\Core\Routing\UrlGeneratorInterface $generator
-   *   The URL generator service.
+   * @param \Drupal\Core\Routing\UrlGeneratorInterface $url_generator
+   *   The URL generator.
    */
-  public function __construct(UrlGeneratorInterface $generator) {
-    $this->urlGenerator = $generator;
+  public function __construct(UrlGeneratorInterface $url_generator) {
+    $this->urlGenerator = $url_generator;
   }
 
   /**
    * {@inheritdoc}
    */
   public function render(array $render_array) {
-
     $content = $this->drupalRender($render_array);
     if (!empty($render_array)) {
       drupal_process_attached($render_array);
@@ -55,6 +57,7 @@ public function render(array $render_array) {
       'drupal_add_html_head_link' => [],
     ];
 
+
     // Add feed links from the page content.
     foreach ($attached['drupal_add_feed'] as $feed) {
       $fragment->addLinkElement(new FeedLinkElement($feed[1], $this->urlGenerator->generateFromPath($feed[0])));
diff --git a/core/lib/Drupal/Core/Page/RenderHtmlRendererInterface.php b/core/lib/Drupal/Core/Page/RenderHtmlRendererInterface.php
index 0b40451..95fabae 100644
--- a/core/lib/Drupal/Core/Page/RenderHtmlRendererInterface.php
+++ b/core/lib/Drupal/Core/Page/RenderHtmlRendererInterface.php
@@ -8,7 +8,7 @@
 namespace Drupal\Core\Page;
 
 /**
- * Interface for HTML Render Array Renderers.
+ * Interface for a render array to HTML fragment renderer.
  *
  * An HTML Fragment Renderer is responsible for translating a Drupal render
  * array into an HtmlFragmentInterface object.
@@ -21,7 +21,7 @@
    * @param array $render_array
    *   The render array to convert.
    *
-   * @return \Drupal\Core\Page\HtmlFragmentInterface
+   * @return \Drupal\Core\Page\HtmlFragment
    *   The equivalent HtmlFragment object.
    */
   public function render(array $render_array);