Add blob serialization support [currently unused] to SerializedScriptValue.

Source/core/fileapi/File.h

Index: Source/core/fileapi/File.h
diff --git a/Source/core/fileapi/File.h b/Source/core/fileapi/File.h
index 1c3bc1b7558ece32b23781cc66dcf21c0798c528..1da8178962e695fcdeff01912b5fa64d02fd364a 100644
--- a/Source/core/fileapi/File.h
+++ b/Source/core/fileapi/File.h
@@ -62,6 +62,10 @@ public:
     {
         return adoptRefWillBeNoop(new File(path, name, relativePath, hasSnaphotData, size, lastModified, blobDataHandle));
     }
+    static PassRefPtrWillBeRawPtr<File> create(const String& path, const String& name, uint64_t size, double lastModified, PassRefPtr<BlobDataHandle> blobDataHandle)
+    {
+        return adoptRefWillBeNoop(new File(path, name, String(), true, size, lastModified, blobDataHandle));
+    }
 
     static PassRefPtrWillBeRawPtr<File> createWithRelativePath(const String& path, const String& relativePath);