Move FormDataList::deleteEntry() and hasEntry() to DOMFormData.

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 84 matching lines @@
     }
     void appendData(const String& key, int value)
     {
         appendItem(Item(encodeAndNormalize(key), encodeAndNormalize(String::number(value))));
     }
     void appendBlob(const String& key, Blob* blob, const String& filename = String())
     {
         appendItem(Item(encodeAndNormalize(key), blob, filename));
     }
 
-    void deleteEntry(const String& key);
     Entry getEntry(const String& key) const;
     Entry getEntry(size_t index) const;
     HeapVector<Entry> getAll(const String& key) const;
-    bool hasEntry(const String& key) const;
     size_t size() const { return m_items.size(); }
 
     const FormDataListItems& items() const { return m_items; }
     const WTF::TextEncoding& encoding() const { return m_encoding; }
 
     PassRefPtr<FormData> createFormData(FormData::EncodingType = FormData::FormURLEncoded);
     PassRefPtr<FormData> createMultiPartFormData();
 
     DECLARE_VIRTUAL_TRACE();
 
@@ skipping 11 matching lines @@
 
     WTF::TextEncoding m_encoding;
 };
 
 } // namespace blink
 
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::FormDataList::Entry);
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::FormDataList::Item);
 
 #endif // FormDataList_h