Do not create FormDataList instances.

Source/core/html/FormDataList.h

 /*
  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 14 matching lines @@
 #include "core/fileapi/Blob.h"
 #include "core/fileapi/File.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/FormData.h"
 #include "wtf/Forward.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/TextEncoding.h"
 
 namespace blink {
 
+// TODO(tkent): Merge FormDataList into DOMFormData.
 class CORE_EXPORT FormDataList : public GarbageCollected<FormDataList> {
 public:
     // TODO(tkent): Merge Entry and Item.
     class Entry final {
         ALLOW_ONLY_INLINE_ALLOCATION();
     public:
         enum Type { None, StringType, FileType };
 
         Entry() : m_type(None) { }
         Entry(const String& name, const String& value) : m_type(StringType), m_name(name), m_string(value) { }
@@ skipping 30 matching lines @@
 
         DECLARE_TRACE();
 
     private:
         CString m_key;
         WTF::CString m_data;
         Member<Blob> m_blob;
         String m_filename;
     };
 
-    static FormDataList* create(const WTF::TextEncoding& encoding)
-    {
-        return new FormDataList(encoding);
-    }
-
     using FormDataListItems = HeapVector<FormDataList::Item>;
 
     void appendData(const String& key, const String& value)
     {
         appendItem(Item(encodeAndNormalize(key), encodeAndNormalize(value)));
     }
     void appendData(const String& key, const CString& value)
     {
         appendItem(Item(encodeAndNormalize(key), value));
     }
@@ skipping 37 matching lines @@
     WTF::TextEncoding m_encoding;
     FormDataListItems m_items;
 };
 
 } // namespace blink
 
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::FormDataList::Entry);
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::FormDataList::Item);
 
 #endif // FormDataList_h