********** WebCore blob hacking

WebCore/fileapi/WebKitBlobBuilder.cpp

 /*
  * 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 117 matching lines @@
         m_size += snapshotSize;
 #if ENABLE(FILE_SYSTEM)
         if (!file->fileSystemURL().isEmpty())
             m_items.append(BlobDataItem(file->fileSystemURL(), 0, snapshotSize, snapshotModificationTime));
         else
 #endif
         m_items.append(BlobDataItem(file->path(), 0, snapshotSize, snapshotModificationTime));
     } else {
         long long blobSize = static_cast<long long>(blob->size());
         m_size += blobSize;
-        m_items.append(BlobDataItem(blob->url(), 0, blobSize));
+        m_items.append(BlobDataItem(blob->blobDataHandle(), 0, blobSize));
     }
 }
 
 void BlobBuilder::appendBytesData(const void* data, size_t length)
 {
     Vector<char>& buffer = getBuffer();
     size_t oldSize = buffer.size();
     buffer.append(static_cast<const char*>(data), length);
     m_size += buffer.size() - oldSize;
 }
 
 PassRefPtr<Blob> BlobBuilder::getBlob(const String& contentType)
 {
     OwnPtr<BlobData> blobData = BlobData::create();
     blobData->setContentType(contentType);
     blobData->swapItems(m_items);
 
-    RefPtr<Blob> blob = Blob::create(blobData.release(), m_size);
+    RefPtr<Blob> blob = Blob::create(BlobDataHandle::create(blobData.release(), m_size));
 
     // After creating a blob from the current blob data, we do not need to keep the data around any more. Instead, we only
-    // need to keep a reference to the URL of the blob just created.
-    m_items.append(BlobDataItem(blob->url(), 0, m_size));
+    // need to keep a reference to the blob data just created.
+    m_items.append(BlobDataItem(blob->blobDataHandle(), 0, m_size));
 
     return blob;
 }
 
 } // namespace WebCore