diff -r 000000000000 -r 4f2f89ce4247 WebCore/rendering/style/ContentData.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/style/ContentData.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
+ *           (C) 2000 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2000 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
+ *
+ * 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 ContentData_h
+#define ContentData_h
+
+#include "RenderStyleConstants.h"
+#include <wtf/Noncopyable.h>
+#include <wtf/PassRefPtr.h>
+
+namespace WebCore {
+
+class CounterContent;
+class StringImpl;
+class StyleImage;
+
+struct ContentData : Noncopyable {
+public:
+    ContentData()
+        : m_type(CONTENT_NONE)
+        , m_next(0)
+    {
+    }
+
+    ~ContentData()
+    {
+        clear();
+    }
+
+    void clear();
+
+    bool isCounter() const { return m_type == CONTENT_COUNTER; }
+    bool isImage() const { return m_type == CONTENT_OBJECT; }
+    bool isNone() const { return m_type == CONTENT_NONE; }
+    bool isText() const { return m_type == CONTENT_TEXT; }
+
+    StyleContentType type() const { return m_type; }
+
+    bool dataEquivalent(const ContentData&) const;
+
+    StyleImage* image() const { return m_content.m_image; }
+    void setImage(PassRefPtr<StyleImage> image)
+    {
+        deleteContent();
+        m_type = CONTENT_OBJECT;
+        m_content.m_image = image.releaseRef();
+    }
+
+    StringImpl* text() const { return m_content.m_text; }
+    void setText(PassRefPtr<StringImpl> text)
+    {
+        deleteContent();
+        m_type = CONTENT_TEXT;
+        m_content.m_text = text.releaseRef();
+    }
+
+    CounterContent* counter() const { return m_content.m_counter; }
+    void setCounter(CounterContent* counter)
+    {
+        deleteContent();
+        m_type = CONTENT_COUNTER;
+        m_content.m_counter = counter;
+    }
+
+    ContentData* next() const { return m_next; }
+    void setNext(ContentData* next)
+    {
+        m_next = next;
+    }
+
+private:
+    void deleteContent();
+
+    StyleContentType m_type;
+    union {
+        StyleImage* m_image;
+        StringImpl* m_text;
+        CounterContent* m_counter;
+    } m_content;
+    ContentData* m_next;
+};
+
+} // namespace WebCore
+
+#endif // ContentData_h