Remove ENABLE(FILE_SYSTEM) compile-time flag.

Source/WebCore/Modules/filesystem/chromium/DataTransferItemFileSystemChromium.cpp

 /*
  * Copyright (C) 2012 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 "DataTransferItemFileSystem.h"
 
-#if ENABLE(FILE_SYSTEM)
-
 #include "AsyncFileSystem.h"
 #include "AsyncFileSystemCallbacks.h"
 #include "ChromiumDataObject.h"
 #include "ClipboardChromium.h"
 #include "DOMFilePath.h"
 #include "DOMFileSystem.h"
 #include "DirectoryEntry.h"
 #include "DraggedIsolatedFileSystem.h"
 #include "Entry.h"
 #include "File.h"
@@ skipping 35 matching lines @@
     FileMetadata metadata;
     if (!getFileMetadata(toFile(file)->path(), metadata))
         return adoptRef(static_cast<Entry*>(0));
 
     if (metadata.type == FileMetadata::TypeDirectory)
         return static_cast<Entry*>(DirectoryEntry::create(domFileSystem, virtualPath).get());
     return static_cast<Entry*>(FileEntry::create(domFileSystem, virtualPath).get());
 }
 
 } // namespace WebCore
-
-#endif // ENABLE(FILE_SYSTEM)