Blink Blobs: Allow creation of WebBlob from just UUID.

Source/web/WebBlob.cpp

 /*
  * Copyright (C) 2011 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 23 matching lines @@
 #include "V8Blob.h"
 #include "bindings/v8/V8Binding.h"
 #include "core/fileapi/Blob.h"
 #include "platform/blob/BlobData.h"
 #include "wtf/PassOwnPtr.h"
 
 using namespace WebCore;
 
 namespace blink {
 
+WebBlob WebBlob::createFromUUID(const WebString& uuid, const WebString& type, long long size)
+{
+    RefPtrWillBeRawPtr<Blob> blob = Blob::create(BlobDataHandle::create(uuid, type, size));
+    return WebBlob(blob);
+}
+
 WebBlob WebBlob::createFromFile(const WebString& path, long long size)
 {
     OwnPtr<BlobData> blobData = BlobData::create();
     blobData->appendFile(path);
     RefPtrWillBeRawPtr<Blob> blob = Blob::create(BlobDataHandle::create(blobData.release(), size));
     return WebBlob(blob);
 }
 
 WebBlob WebBlob::fromV8Value(v8::Handle<v8::Value> value)
 {
@@ skipping 35 matching lines @@
 {
 }
 
 WebBlob& WebBlob::operator=(const PassRefPtrWillBeRawPtr<WebCore::Blob>& blob)
 {
     m_private = blob;
     return *this;
 }
 
 } // namespace blink