Remove ENABLE(FILE_SYSTEM) compile-time flag.

Source/WebKit/chromium/src/AsyncFileWriterChromium.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 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.
  */
 
 #include "config.h"
 #include "AsyncFileWriterChromium.h"
 
-#if ENABLE(FILE_SYSTEM)
-
 #include "AsyncFileWriterClient.h"
 #include "Blob.h"
 #include "WebFileWriter.h"
 #include <public/WebURL.h>
 
 namespace WebCore {
 
 AsyncFileWriterChromium::AsyncFileWriterChromium(AsyncFileWriterClient* client)
     : m_client(client)
 {
@@ skipping 36 matching lines @@
 {
     m_client->didTruncate();
 }
 
 void AsyncFileWriterChromium::didFail(WebKit::WebFileError error)
 {
     m_client->didFail(static_cast<FileError::ErrorCode>(error));
 }
 
 } // namespace
-
-#endif // ENABLE(FILE_SYSTEM)