Removing unused function BlobData::swapItems()

Source/platform/blob/BlobData.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 152 matching lines @@
 public:
     static PassOwnPtr<BlobData> create();
 
     // Detaches from current thread so that it can be passed to another thread.
     void detachFromCurrentThread();
 
     const String& contentType() const { return m_contentType; }
     void setContentType(const String& contentType) { m_contentType = contentType; }
 
     const BlobDataItemList& items() const { return m_items; }
-    void swapItems(BlobDataItemList&);
 
     void appendBytes(const void*, size_t length);
     void appendData(PassRefPtr<RawData>, long long offset, long long length);
     void appendFile(const String& path);
     void appendFile(const String& path, long long offset, long long length, double expectedModificationTime);
     void appendBlob(PassRefPtr<BlobDataHandle>, long long offset, long long length);
     void appendFileSystemURL(const KURL&, long long offset, long long length, double expectedModificationTime);
     void appendText(const String&, bool normalizeLineEndingsToNative);
 
     // The value of the size property for a Blob who has this data.
@@ skipping 46 matching lines @@
     BlobDataHandle(const String& uuid, const String& type, long long size);
 
     const String m_uuid;
     const String m_type;
     const long long m_size;
 };
 
 } // namespace blink
 
 #endif // BlobData_h