LibHTML: Create some subdirectories.

LibHTML/DOM/Node.cpp

@@ -0,0 +1,34 @@
+#include <LibHTML/DOM/Node.h>
+#include <LibHTML/Layout/LayoutNode.h>
+
+Node::Node(NodeType type)
+    : m_type(type)
+{
+}
+
+Node::~Node()
+{
+}
+
+void Node::retain()
+{
+    ASSERT(m_retain_count);
+    ++m_retain_count;
+}
+
+void Node::release()
+{
+    ASSERT(m_retain_count);
+    if (!--m_retain_count)
+        delete this;
+}
+
+RetainPtr<LayoutNode> Node::create_layout_node()
+{
+    return nullptr;
+}
+
+void Node::set_layout_node(Retained<LayoutNode> layout_node)
+{
+    m_layout_node = move(layout_node);
+}