Add constructor for DataTransfer

third_party/WebKit/Source/core/clipboard/DataTransfer.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 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.
@@ skipping 46 matching lines @@
 
  public:
   // Whether this transfer is serving a drag-drop, copy-paste, spellcheck,
   // auto-correct or similar request.
   enum DataTransferType {
     CopyAndPaste,
     DragAndDrop,
     InsertReplacementText,
   };
 
+  static DataTransfer* create();
   static DataTransfer* create(DataTransferType,
                               DataTransferAccessPolicy,
                               DataObject*);
   ~DataTransfer();
 
   bool isForCopyAndPaste() const { return m_transferType == CopyAndPaste; }
   bool isForDragAndDrop() const { return m_transferType == DragAndDrop; }
 
   String dropEffect() const {
     return dropEffectIsUninitialized() ? "none" : m_dropEffect;
@@ skipping 73 matching lines @@
   Member<Node> m_dragImageElement;
 };
 
 DragOperation convertDropZoneOperationToDragOperation(
     const String& dragOperation);
 String convertDragOperationToDropZoneOperation(DragOperation);
 
 }  // namespace blink
 
 #endif  // DataTransfer_h