Remove old wtf/ directory.

third_party/WebKit/Source/build/scripts/templates/ElementFactory.h.tmpl

 {% from "macros.tmpl" import license %}
 {{ license() }}
 
 #ifndef {{namespace}}ElementFactory_h
 #define {{namespace}}ElementFactory_h
 
 #include "core/dom/Document.h"
 #include "platform/heap/Handle.h"
-#include "wtf/Forward.h"
-#include "wtf/PassRefPtr.h"
+#include "platform/wtf/Forward.h"
+#include "platform/wtf/PassRefPtr.h"
 
 namespace blink {
 
 class Document;
 class {{namespace}}Element;
 {% if namespace == 'HTML' %}
 class HTMLFormElement;
 {% endif %}
 
 class {{namespace}}ElementFactory {
  public:
   static {{namespace}}Element* create{{namespace}}Element(
       const AtomicString& localName,
       Document&,
       CreateElementFlags flags = kCreatedByParser);
 };
 
 } // namespace blink
 
 #endif