Ideas for text track container follow-up

Source/core/layout/LayoutTextTrackContainer.cpp

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 12 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
 #include "core/layout/LayoutTextTrackContainer.h"
 
 #include "core/frame/DeprecatedScheduleStyleRecalcDuringLayout.h"
-#include "core/html/HTMLMediaElement.h"
 #include "core/html/track/TextTrackContainer.h"
 
 namespace blink {
 
 LayoutTextTrackContainer::LayoutTextTrackContainer(Element* element)
     : LayoutBlockFlow(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