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diff --git a/WebCore/storage/LocalStorage.h b/WebCore/storage/LocalStorage.h
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+/*
+ * Copyright (C) 2008 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 LocalStorage_h
+#define LocalStorage_h
+
+#include "LocalStorageArea.h"
+#include "LocalStorageTask.h"
+#include "LocalStorageThread.h"
+#include "SecurityOriginHash.h"
+
+#include <wtf/HashMap.h>
+#include <wtf/HashSet.h>
+#include <wtf/Threading.h>
+
+namespace WebCore {
+
+    class PageGroup;
+    class StorageArea;
+
+    class LocalStorage : public ThreadSafeShared<LocalStorage> {
+    public:
+        ~LocalStorage();
+
+        static PassRefPtr<LocalStorage> localStorage(const String& path);
+
+        PassRefPtr<StorageArea> storageArea(Frame* sourceFrame, SecurityOrigin*);
+
+        bool scheduleImport(PassRefPtr<LocalStorageArea>);
+        void scheduleSync(PassRefPtr<LocalStorageArea>);
+
+        void close();
+
+    private:
+        LocalStorage(const String& path);
+
+        typedef HashMap<RefPtr<SecurityOrigin>, RefPtr<LocalStorageArea>, SecurityOriginHash> LocalStorageAreaMap;
+        LocalStorageAreaMap m_storageAreaMap;
+
+        RefPtr<LocalStorageThread> m_thread;
+
+    // The following members are subject to thread synchronization issues
+    public:
+        // To be called from the background thread:
+        String fullDatabaseFilename(SecurityOrigin*);
+
+        void performImport();
+        void performSync();
+
+    private:
+        String m_path;
+
+        typedef HashMap<RefPtr<SecurityOrigin>, unsigned long long, SecurityOriginHash> SecurityOriginQuoteMap;
+        SecurityOriginQuoteMap m_securityOriginQuoteMap;
+    };
+
+} // namespace WebCore
+
+#endif // LocalStorage_h