Merge HTMLDocument into Document

sky/engine/web/WebDocument.cpp

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 64 matching lines @@
 WebURL WebDocument::openSearchDescriptionURL() const
 {
     return const_cast<Document*>(constUnwrap<Document>())->openSearchDescriptionURL();
 }
 
 WebLocalFrame* WebDocument::frame() const
 {
     return WebLocalFrameImpl::fromFrame(constUnwrap<Document>()->frame());
 }
 
-bool WebDocument::isHTMLDocument() const
-{
-    return constUnwrap<Document>()->isHTMLDocument();
-}
-
 WebElement WebDocument::documentElement() const
 {
     return WebElement(constUnwrap<Document>()->documentElement());
 }
 
 WebString WebDocument::title() const
 {
     return WebString(constUnwrap<Document>()->title());
 }
 
@@ skipping 41 matching lines @@
     m_private = elem;
     return *this;
 }
 
 WebDocument::operator PassRefPtr<Document>() const
 {
     return toDocument(m_private.get());
 }
 
 } // namespace blink