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diff --git a/WebKit/chromium/src/WorkerAsyncFileSystemChromium.h b/WebKit/chromium/src/WorkerAsyncFileSystemChromium.h
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+/*
+ * 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
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * 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.
+ */
+
+#ifndef WorkerAsyncFileSystemChromium_h
+#define WorkerAsyncFileSystemChromium_h
+
+#if ENABLE(FILE_SYSTEM)
+
+#include "AsyncFileSystem.h"
+#include "PlatformString.h"
+#include <wtf/PassOwnPtr.h>
+#include <wtf/RefPtr.h>
+
+namespace WebKit {
+class WebFileSystem;
+class WebWorkerBase;
+class WorkerFileSystemCallbacksBridge;
+}
+
+namespace WebCore {
+
+class AsyncFileSystemCallbacks;
+class ScriptExecutionContext;
+class WorkerContext;
+
+class WorkerAsyncFileSystemChromium : public AsyncFileSystem {
+public:
+    static PassOwnPtr<AsyncFileSystem> create(ScriptExecutionContext* context, const String& rootPath, bool synchronous)
+    {
+        return adoptPtr(new WorkerAsyncFileSystemChromium(context, rootPath, synchronous));
+    }
+
+    virtual ~WorkerAsyncFileSystemChromium();
+
+    // Runs one pending operation (to wait for completion in the sync-mode).
+    virtual bool waitForOperationToComplete();
+
+    virtual void move(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void copy(const String& sourcePath, const String& destinationPath, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void remove(const String& path, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void removeRecursively(const String& path, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void readMetadata(const String& path, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void createFile(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void createDirectory(const String& path, bool exclusive, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void fileExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void directoryExists(const String& path, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void readDirectory(const String& path, PassOwnPtr<AsyncFileSystemCallbacks>);
+    virtual void createWriter(AsyncFileWriterClient* client, const String& path, PassOwnPtr<AsyncFileSystemCallbacks>);
+
+private:
+    WorkerAsyncFileSystemChromium(ScriptExecutionContext*, const String& rootPath, bool synchronous);
+
+    PassRefPtr<WebKit::WorkerFileSystemCallbacksBridge> createWorkerFileSystemCallbacksBridge(PassOwnPtr<AsyncFileSystemCallbacks>);
+
+    ScriptExecutionContext* m_scriptExecutionContext;
+    WebKit::WebFileSystem* m_webFileSystem;
+    WebKit::WebWorkerBase* m_worker;
+    WorkerContext* m_workerContext;
+    RefPtr<WebKit::WorkerFileSystemCallbacksBridge> m_bridgeForCurrentOperation;
+    String m_modeForCurrentOperation;
+    bool m_synchronous;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(FILE_SYSTEM)
+
+#endif // WorkerAsyncFileSystemChromium_h