Make the HTML parser parse into the document rather than an element.

This removes the duplicate html element.

src/components/script/dom/document.rs

@@ -77,17 +77,6 @@ impl AbstractDocument {
             document: ptr as *mut Box<Document>
         }
     }
-
-    pub fn set_root(&self, root: AbstractNode<ScriptView>) {
-        assert!(do root.traverse_preorder().all |node| {
-            node.node().owner_doc() == *self
-        });
-
-        let document = self.mut_document();
-        document.node.AppendChild(AbstractNode::from_document(*self), root);
-        // Register elements having "id" attribute to the owner doc.
-        document.register_nodes_with_id(&root);
-    }
 }
 
 #[deriving(Eq)]
@@ -173,7 +162,9 @@ impl Reflectable for Document {
 
 impl Document {
     pub fn GetDocumentElement(&self) -> Option<AbstractNode<ScriptView>> {
-        self.node.first_child
+        do self.node.children().find |c| {
+            c.is_element()
+        }
     }
 
     fn get_cx(&self) -> *JSContext {