Remove ENABLE(FILE_SYSTEM) compile-time flag.

Source/WebKit/chromium/src/WorkerFileSystemCallbacksBridge.cpp

 /*
  * Copyright (C) 2010, 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 "WorkerFileSystemCallbacksBridge.h"
 
-#if ENABLE(FILE_SYSTEM) && ENABLE(WORKERS)
+#if ENABLE(WORKERS)
 
 #include "BlobData.h"
 #include "CrossThreadTask.h"
 #include "KURL.h"
 #include "WebCommonWorkerClient.h"
 #include "WebFileSystemCallbacksImpl.h"
 #include "WebWorkerBase.h"
 #include "WorkerContext.h"
 #include "WorkerLoaderProxy.h"
 #include "WorkerScriptController.h"
@@ skipping 438 matching lines @@
     // Relies on its caller (MainThreadFileSystemCallbacks:did*) to keep WorkerFileSystemCallbacksBridge alive.
     ASSERT(isMainThread());
 
     MutexLocker locker(m_loaderProxyMutex);
     if (m_workerLoaderProxy)
         m_workerLoaderProxy->postTaskForModeToWorkerContext(createCallbackTask(&runTaskOnWorkerThread, this, task), mode);
 }
 
 } // namespace WebCore
 
-#endif // ENABLE(FILE_SYSTEM)
+#endif // ENABLE(WORKERS)