Ideas for text track container follow-up

Source/core/layout/LayoutTextTrackContainer.cpp

Index: Source/core/layout/LayoutTextTrackContainer.cpp
diff --git a/Source/core/layout/LayoutTextTrackContainer.cpp b/Source/core/layout/LayoutTextTrackContainer.cpp
index 4bbceb42c28777bdf38c5325da727d8dd111a87c..84190ba9caa7615df1852e2e26025b8659d65647 100644
--- a/Source/core/layout/LayoutTextTrackContainer.cpp
+++ b/Source/core/layout/LayoutTextTrackContainer.cpp
@@ -30,7 +30,6 @@
 #include "core/layout/LayoutTextTrackContainer.h"
 
 #include "core/frame/DeprecatedScheduleStyleRecalcDuringLayout.h"
-#include "core/html/HTMLMediaElement.h"
 #include "core/html/track/TextTrackContainer.h"
 
 namespace blink {
@@ -43,15 +42,13 @@ LayoutTextTrackContainer::LayoutTextTrackContainer(Element* element)
 void LayoutTextTrackContainer::layout()
 {
     LayoutBlockFlow::layout();
-    if (style()->display() == NONE)
-        return;
 
     DeprecatedScheduleStyleRecalcDuringLayout marker(node()->document().lifecycle());
 
     TextTrackContainer* textTrackContainer = toTextTrackContainer(node());
-    HTMLMediaElement* mediaElement = toHTMLMediaElement(parent()->node());
-    ASSERT(textTrackContainer && mediaElement);
-    textTrackContainer->updateSizes(*mediaElement);
+    ASSERT(textTrackContainer);
+    LayoutSize size = contentBoxRect().size();
+    textTrackContainer->updateSizes(size);
 }
 
 } // namespace blink