diff -r 000000000000 -r 4f2f89ce4247 WebKit2/UIProcess/WebBackForwardList.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit2/UIProcess/WebBackForwardList.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2010 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. AND ITS 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 APPLE INC. OR ITS 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 WebBackForwardList_h
+#define WebBackForwardList_h
+
+#include "ImmutableArray.h"
+#include "WebBackForwardListItem.h"
+#include <wtf/Vector.h>
+#include <wtf/RefPtr.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+
+namespace WebKit {
+
+class WebPageProxy;
+
+typedef Vector<RefPtr<WebBackForwardListItem> > BackForwardListItemVector;
+
+/*
+ *          Current
+ *   |---------*--------------| Entries
+ *      Back        Forward
+ */
+
+class WebBackForwardList : public RefCounted<WebBackForwardList> {
+public:
+    static PassRefPtr<WebBackForwardList> create(WebPageProxy* page)
+    {
+        return adoptRef(new WebBackForwardList(page));
+    }
+    ~WebBackForwardList();
+
+    void addItem(WebBackForwardListItem*);
+    void goToItem(WebBackForwardListItem*);
+
+    WebBackForwardListItem* currentItem();
+    WebBackForwardListItem* backItem();
+    WebBackForwardListItem* forwardItem();
+    WebBackForwardListItem* itemAtIndex(int);
+
+    int backListCount();
+    int forwardListCount();
+
+    BackForwardListItemVector backListWithLimit(unsigned limit);
+    BackForwardListItemVector forwardListWithLimit(unsigned limit);
+
+    PassRefPtr<ImmutableArray> backListAsImmutableArrayWithLimit(unsigned limit);
+    PassRefPtr<ImmutableArray> forwardListAsImmutableArrayWithLimit(unsigned limit);
+
+private:
+    WebBackForwardList(WebPageProxy*);
+
+    WebPageProxy* m_page;
+    BackForwardListItemVector m_entries;
+    unsigned m_current;
+    unsigned m_capacity;
+    bool m_closed;
+    bool m_enabled;
+};
+
+} // namespace WebKit
+
+#endif // WebBackForwardList_h