--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderIFrame.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,76 @@
+/*
+ * 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 COMPUTER, 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 COMPUTER, 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 RenderIFrame_h
+#define RenderIFrame_h
+
+#include "RenderFrameBase.h"
+
+namespace WebCore {
+
+class RenderIFrame : public RenderFrameBase {
+public:
+    RenderIFrame(Element*);
+
+#if USE(ACCELERATED_COMPOSITING)
+    bool requiresAcceleratedCompositing() const;
+#endif
+
+private:
+    virtual void calcHeight();
+    virtual void calcWidth();
+
+    virtual void layout();
+
+#if USE(ACCELERATED_COMPOSITING)
+    virtual bool requiresLayer() const;
+#endif
+    virtual bool isRenderIFrame() const { return true; }
+
+    virtual const char* renderName() const { return "RenderPartObject"; } // Lying for now to avoid breaking tests
+
+    bool flattenFrame();
+
+};
+
+inline RenderIFrame* toRenderIFrame(RenderObject* object)
+{
+    ASSERT(!object || object->isRenderIFrame());
+    return static_cast<RenderIFrame*>(object);
+}
+
+inline const RenderIFrame* toRenderIFrame(const RenderObject* object)
+{
+    ASSERT(!object || object->isRenderIFrame());
+    return static_cast<const RenderIFrame*>(object);
+}
+
+// This will catch anyone doing an unnecessary cast.
+void toRenderIFrame(const RenderIFrame*);
+
+
+} // namespace WebCore
+
+#endif // RenderIFrame_h