Make filesystem objects ScriptWrappable.

Source/modules/filesystem/FileWriter.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 46 matching lines @@
     , m_readyState(INIT)
     , m_operationInProgress(OperationNone)
     , m_queuedOperation(OperationNone)
     , m_bytesWritten(0)
     , m_bytesToWrite(0)
     , m_truncateLength(-1)
     , m_numAborts(0)
     , m_recursionDepth(0)
     , m_lastProgressNotificationTimeMS(0)
 {
+    ScriptWrappable::init(this);
 }
 
 FileWriter::~FileWriter()
 {
     ASSERT(!m_recursionDepth);
     if (m_readyState == WRITING)
         stop();
 }
 
 const AtomicString& FileWriter::interfaceName() const
@@ skipping 241 matching lines @@
     ASSERT(m_recursionDepth >= 0);
 }
 
 void FileWriter::setError(FileError::ErrorCode errorCode, ExceptionCode& ec)
 {
     ec = FileException::ErrorCodeToExceptionCode(errorCode);
     m_error = FileError::create(errorCode);
 }
 
 } // namespace WebCore