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diff --git a/WebKit/chromium/src/WebFileSystemCallbacksImpl.cpp b/WebKit/chromium/src/WebFileSystemCallbacksImpl.cpp
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+++ b/WebKit/chromium/src/WebFileSystemCallbacksImpl.cpp
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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.
+ */
+#include "config.h"
+#include "WebFileSystemCallbacksImpl.h"
+
+#if ENABLE(FILE_SYSTEM)
+
+#include "AsyncFileSystemCallbacks.h"
+#include "AsyncFileSystemChromium.h"
+#include "FileMetadata.h"
+#include "ScriptExecutionContext.h"
+#include "WebFileSystemEntry.h"
+#include "WebFileInfo.h"
+#include "WebString.h"
+#include "WorkerAsyncFileSystemChromium.h"
+#include <wtf/Vector.h>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+WebFileSystemCallbacksImpl::WebFileSystemCallbacksImpl(PassOwnPtr<AsyncFileSystemCallbacks> callbacks, WebCore::ScriptExecutionContext* context, bool synchronous)
+    : m_callbacks(callbacks)
+    , m_context(context)
+    , m_synchronous(synchronous)
+{
+    ASSERT(m_callbacks);
+}
+
+WebFileSystemCallbacksImpl::~WebFileSystemCallbacksImpl()
+{
+}
+
+void WebFileSystemCallbacksImpl::didSucceed()
+{
+    m_callbacks->didSucceed();
+    delete this;
+}
+
+void WebFileSystemCallbacksImpl::didReadMetadata(const WebFileInfo& webFileInfo)
+{
+    FileMetadata fileMetadata;
+    fileMetadata.modificationTime = webFileInfo.modificationTime;
+    fileMetadata.length = webFileInfo.length;
+    fileMetadata.type = static_cast<FileMetadata::Type>(webFileInfo.type);
+    m_callbacks->didReadMetadata(fileMetadata);
+    delete this;
+}
+
+void WebFileSystemCallbacksImpl::didReadDirectory(const WebVector<WebFileSystemEntry>& entries, bool hasMore)
+{
+    for (size_t i = 0; i < entries.size(); ++i)
+        m_callbacks->didReadDirectoryEntry(entries[i].name, entries[i].isDirectory);
+    m_callbacks->didReadDirectoryEntries(hasMore);
+    delete this;
+}
+
+void WebFileSystemCallbacksImpl::didOpenFileSystem(const WebString& name, const WebString& path)
+{
+    if (m_context && m_context->isWorkerContext())
+        m_callbacks->didOpenFileSystem(name, WorkerAsyncFileSystemChromium::create(m_context, path, m_synchronous));
+    else
+        m_callbacks->didOpenFileSystem(name, AsyncFileSystemChromium::create(path));
+    delete this;
+}
+
+void WebFileSystemCallbacksImpl::didFail(WebFileError error)
+{
+    m_callbacks->didFail(error);
+    delete this;
+}
+
+} // namespace WebKit
+
+#endif // ENABLE(FILE_SYSTEM)