Merge 87756

Source/WebCore/html/MediaDocument.cpp

 /*
  * Copyright (C) 2008 Apple 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 191 matching lines @@
     htmlBody->setAttribute(marginheightAttr, "0");
 
     if (HTMLVideoElement* videoElement = descendentVideoElement(htmlBody)) {
         RefPtr<Element> element = Document::createElement(embedTag, false);
         HTMLEmbedElement* embedElement = static_cast<HTMLEmbedElement*>(element.get());
 
         embedElement->setAttribute(widthAttr, "100%");
         embedElement->setAttribute(heightAttr, "100%");
         embedElement->setAttribute(nameAttr, "plugin");
         embedElement->setAttribute(srcAttr, url().string());
-        embedElement->setAttribute(typeAttr, loader()->writer()->mimeType());
+
+        DocumentLoader* documentLoader = loader();
+        ASSERT(documentLoader);
+        if (documentLoader)
+            embedElement->setAttribute(typeAttr, documentLoader->writer()->mimeType());
 
         ExceptionCode ec;
         videoElement->parentNode()->replaceChild(embedElement, videoElement, ec);
     }
 }
 
 }
 #endif