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

WebCore/fileapi/Blob.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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Blob_h
 #define Blob_h
 
-#include "BlobData.h"
-#include "KURL.h"
+#include "BlobData.h"   // not needed?
+#include "KURL.h"  // not needed?
 #include <wtf/PassOwnPtr.h>
 #include <wtf/PassRefPtr.h>
 #include <wtf/RefCounted.h>
 #include <wtf/Vector.h>
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
 class ScriptExecutionContext;
 
 class Blob : public RefCounted<Blob> {
 public:
     static PassRefPtr<Blob> create()
     {
-        return adoptRef(new Blob);
+        return adoptRef(new Blob(BlobDataHandle::create()));
     }
 
-    static PassRefPtr<Blob> create(PassOwnPtr<BlobData> blobData, long long size)
+    static PassRefPtr<Blob> create(PassRefPtr<BlobDataHandle> blobDataHandle)
     {
-        return adoptRef(new Blob(blobData, size));
-    }
-
-    // For deserialization.
-    static PassRefPtr<Blob> create(const KURL& srcURL, const String& type, long long size)
-    {
-        return adoptRef(new Blob(srcURL, type, size));
+        return adoptRef(new Blob(blobDataHandle));
     }
 
     virtual ~Blob();
 
-    const KURL& url() const { return m_internalURL; }
-    const String& type() const { return m_type; }
+    String uuid() const { return m_blobDataHandle->uuid(); }
+    String type() const {  return m_blobDataHandle->type(); }
+    virtual unsigned long long size() const { return m_blobDataHandle->size(); }
+    virtual bool isFile() const { return false; }
 
-    virtual unsigned long long size() const { return static_cast<unsigned long long>(m_size); }
-    virtual bool isFile() const { return false; }
+    PassRefPtr<BlobDataHandle> blobDataHandle() const { return m_blobDataHandle; }
 
 #if ENABLE(BLOB)
     PassRefPtr<Blob> slice(long long start = 0, long long end = std::numeric_limits<long long>::max(), const String& contentType = String()) const;
 #endif
 
 protected:
+    Blob(PassRefPtr<BlobDataHandle>);
+
+private:
     Blob();
-    Blob(PassOwnPtr<BlobData>, long long size);
-
-    // For deserialization.
-    Blob(const KURL& srcURL, const String& type, long long size);
-
-    // This is an internal URL referring to the blob data associated with this object. It serves
-    // as an identifier for this blob. The internal URL is never used to source the blob's content
-    // into an HTML or for FileRead'ing, public blob URLs must be used for those purposes.
-    KURL m_internalURL;
-
-    String m_type;
-    long long m_size;
+    RefPtr<BlobDataHandle> m_blobDataHandle;
 };
 
 } // namespace WebCore
 
 #endif // Blob_h