Make AttachBehavior a required argument.

Source/core/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 81 matching lines @@
 
     RefPtr<HTMLSourceElement> source = HTMLSourceElement::create(document());
     source->setSrc(document()->url());
 
     if (DocumentLoader* loader = document()->loader())
         source->setType(loader->responseMIMEType());
 
     media->appendChild(source.release(), ASSERT_NO_EXCEPTION, AttachLazily);
 
     RefPtr<HTMLBodyElement> body = HTMLBodyElement::create(document());
-    body->appendChild(media.release(), ASSERT_NO_EXCEPTION);
+    body->appendChild(media.release(), ASSERT_NO_EXCEPTION, DeprecatedAttachNow);
 
     rootElement->appendChild(head.release(), ASSERT_NO_EXCEPTION, AttachLazily);
     rootElement->appendChild(body.release(), ASSERT_NO_EXCEPTION, AttachLazily);
 
     m_didBuildDocumentStructure = true;
 }
 
 size_t MediaDocumentParser::appendBytes(const char*, size_t)
 {
     if (m_didBuildDocumentStructure)
@@ skipping 46 matching lines @@
                 if (video->canPlay())
                     video->play();
             } else
                 video->pause();
             event->setDefaultHandled();
         }
     }
 }
 
 }