Merge 87756

Source/WebCore/html/PluginDocument.cpp

 /*
  * Copyright (C) 2006, 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 74 matching lines @@
     rootElement->appendChild(body, ec);
         
     RefPtr<Element> embedElement = document()->createElement(embedTag, false);
         
     m_embedElement = static_cast<HTMLEmbedElement*>(embedElement.get());
     m_embedElement->setAttribute(widthAttr, "100%");
     m_embedElement->setAttribute(heightAttr, "100%");
     
     m_embedElement->setAttribute(nameAttr, "plugin");
     m_embedElement->setAttribute(srcAttr, document()->url().string());
-    m_embedElement->setAttribute(typeAttr, document()->loader()->writer()->mimeType());
+    
+    DocumentLoader* loader = document()->loader();
+    ASSERT(loader);
+    if (loader)
+        m_embedElement->setAttribute(typeAttr, loader->writer()->mimeType());
 
     static_cast<PluginDocument*>(document())->setPluginNode(m_embedElement);
 
     body->appendChild(embedElement, ec);    
 }
 
 void PluginDocumentParser::appendBytes(DocumentWriter*, const char*, int, bool)
 {
     ASSERT(!m_embedElement);
     if (m_embedElement)
@@ skipping 69 matching lines @@
     // PluginDocument::cancelManualPluginLoad should only be called once, but there are issues
     // with how many times we call beforeload on object elements. <rdar://problem/8441094>.
     if (!shouldLoadPluginManually())
         return;
 
     frame()->loader()->activeDocumentLoader()->mainResourceLoader()->cancel();
     setShouldLoadPluginManually(false);
 }
 
 }