Remove ENABLE(FILE_SYSTEM) compile-time flag.

Source/WebCore/Modules/filesystem/LocalFileSystem.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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "LocalFileSystem.h"
 
 #if PLATFORM(CHROMIUM)
 #error "Chromium should not compile this file and instead define its own version of these factories."
 #endif
 
-#if ENABLE(FILE_SYSTEM)
-
 #include "CrossThreadTask.h"
 #include "DOMFileSystem.h"
 #include "ErrorCallback.h"
 #include "ExceptionCode.h"
 #include "FileError.h"
 #include "FileSystemCallback.h"
 #include "FileSystemCallbacks.h"
 #include "ScriptExecutionContext.h"
 #include "SecurityOrigin.h"
 #include <wtf/MainThread.h>
@@ skipping 49 matching lines @@
     context->postTask(createCallbackTask(&openFileSystem, fileSystemBasePath(), context->securityOrigin()->databaseIdentifier(), type, true, callbacks));
 }
 
 void LocalFileSystem::deleteFileSystem(ScriptExecutionContext* context, FileSystemType type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
 {
     // AsyncFileSystem::deleteFileSystem calls callbacks synchronously, so the method needs to be called asynchronously.
     context->postTask(createCallbackTask(&performDeleteFileSystem, fileSystemBasePath(), context->securityOrigin()->databaseIdentifier(), type, callbacks));
 }
 
 } // namespace
-
-#endif // ENABLE(FILE_SYSTEM)