Apply DEFINE/DECLARE_NODE_FACTORY(T) macro to element factories with single Document& argument.

Source/core/html/HTMLContentElement.cpp

Index: Source/core/html/HTMLContentElement.cpp
diff --git a/Source/core/html/HTMLContentElement.cpp b/Source/core/html/HTMLContentElement.cpp
index cc6a1aefcc89770d11157868a5627c7d2f17eaf8..74dafba081137cab0d733479ac9cb8636696e2de 100644
--- a/Source/core/html/HTMLContentElement.cpp
+++ b/Source/core/html/HTMLContentElement.cpp
@@ -40,12 +40,7 @@ namespace WebCore {
 
 using namespace HTMLNames;
 
-PassRefPtrWillBeRawPtr<HTMLContentElement> HTMLContentElement::create(Document& document)
-{
-    return adoptRefWillBeRefCountedGarbageCollected(new HTMLContentElement(document));
-}
-
-HTMLContentElement::HTMLContentElement(Document& document)
+inline HTMLContentElement::HTMLContentElement(Document& document)
     : InsertionPoint(contentTag, document)
     , m_shouldParseSelect(false)
     , m_isValidSelector(true)
@@ -53,6 +48,8 @@ HTMLContentElement::HTMLContentElement(Document& document)
     ScriptWrappable::init(this);
 }
 
+DEFINE_NODE_FACTORY(HTMLContentElement)
+
 HTMLContentElement::~HTMLContentElement()
 {
 }