diff -r 000000000000 -r 4f2f89ce4247 WebCore/rendering/RenderCounter.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderCounter.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
+ * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef RenderCounter_h
+#define RenderCounter_h
+
+#include "CounterContent.h"
+#include "RenderText.h"
+
+namespace WebCore {
+
+class CounterNode;
+
+class RenderCounter : public RenderText {
+public:
+    RenderCounter(Document*, const CounterContent&);
+
+    // Removes the reference to the CounterNode associated with this renderer
+    // if its identifier matches the argument.
+    // This is used to cause a counter display update when the CounterNode
+    // tree for identifier changes.
+    void invalidate(const AtomicString& identifier);
+
+    static void destroyCounterNodes(RenderObject*);
+    static void destroyCounterNode(RenderObject*, const AtomicString& identifier);
+    static void rendererSubtreeAttached(RenderObject*);
+    static void rendererStyleChanged(RenderObject*, const RenderStyle* oldStyle, const RenderStyle* newStyle);
+
+private:
+    virtual const char* renderName() const;
+    virtual bool isCounter() const;
+    virtual PassRefPtr<StringImpl> originalText() const;
+    
+    virtual void calcPrefWidths(int leadWidth);
+
+    CounterContent m_counter;
+    mutable CounterNode* m_counterNode;
+};
+
+inline RenderCounter* toRenderCounter(RenderObject* object)
+{
+    ASSERT(!object || object->isCounter());
+    return static_cast<RenderCounter*>(object);
+}
+
+// This will catch anyone doing an unnecessary cast.
+void toRenderCounter(const RenderCounter*);
+
+} // namespace WebCore
+
+#endif // RenderCounter_h