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diff --git a/webkit/api/src/BackForwardListClientImpl.h b/webkit/api/src/BackForwardListClientImpl.h
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+/*
+ * Copyright (C) 2009 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 BackForwardListClientImpl_h
+#define BackForwardListClientImpl_h
+
+#include "BackForwardList.h"
+
+class WebViewImpl;
+
+namespace WebKit {
+
+extern const char backForwardNavigationScheme[];
+
+class BackForwardListClientImpl : public WebCore::BackForwardListClient {
+public:
+    BackForwardListClientImpl(WebViewImpl* webview);
+    ~BackForwardListClientImpl();
+
+    void SetCurrentHistoryItem(WebCore::HistoryItem* item);
+    WebCore::HistoryItem* GetPreviousHistoryItem() const;
+
+private:
+    // WebCore::BackForwardListClient methods:
+    virtual void addItem(PassRefPtr<WebCore::HistoryItem>);
+    virtual void goToItem(WebCore::HistoryItem*);
+    virtual WebCore::HistoryItem* currentItem();
+    virtual WebCore::HistoryItem* itemAtIndex(int index);
+    virtual int backListCount();
+    virtual int forwardListCount();
+    virtual void close();
+
+    WebViewImpl* m_webView;
+
+    RefPtr<WebCore::HistoryItem> m_previousItem;
+    RefPtr<WebCore::HistoryItem> m_currentItem;
+
+    // The last history item that was accessed via itemAtIndex().  We keep track
+    // of this until goToItem() is called, so we can track the navigation.
+    RefPtr<WebCore::HistoryItem> m_pendingHistoryItem;
+};
+
+} // namespace WebKit
+
+#endif