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diff --git a/Source/WebKit/chromium/public/WebBlob.h b/Source/WebKit/chromium/public/WebBlob.h
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+++ b/Source/WebKit/chromium/public/WebBlob.h
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+/*
+ * 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
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * 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 WebBlob_h
+#define WebBlob_h
+
+#include "platform/WebCommon.h"
+#include "platform/WebPrivatePtr.h"
+#include "platform/WebString.h"
+
+#if WEBKIT_USING_V8
+namespace v8 {
+class Value;
+template <class T> class Handle;
+}
+#endif
+
+namespace WebCore { class Blob; }
+
+namespace WebKit {
+
+class WebBlob {
+public:
+    ~WebBlob() { reset(); }
+
+    WebBlob() { }
+    WebBlob(const WebBlob& b) { assign(b); }
+    WebBlob& operator=(const WebBlob& b)
+    {
+        assign(b);
+        return *this;
+    }
+
+    WEBKIT_EXPORT static WebBlob createFromFile(const WebString& path, long long size);
+
+    WEBKIT_EXPORT void reset();
+    WEBKIT_EXPORT void assign(const WebBlob&);
+
+    bool isNull() const { return m_private.isNull(); }
+
+#if WEBKIT_USING_V8
+    WEBKIT_EXPORT v8::Handle<v8::Value>  toV8Value();
+#endif
+
+#if WEBKIT_IMPLEMENTATION
+    WebBlob(const WTF::PassRefPtr<WebCore::Blob>&);
+    WebBlob& operator=(const WTF::PassRefPtr<WebCore::Blob>&);
+    operator WTF::PassRefPtr<WebCore::Blob>() const;
+#endif
+
+protected:
+    WebPrivatePtr<WebCore::Blob> m_private;
+};
+
+} // namespace WebKit
+
+#endif // WebBlob_h