[WIP] Migrate Fullscreen to use top layer instead of RenderFullScreen

Source/core/rendering/RenderFullScreen.h

Index: Source/core/rendering/RenderFullScreen.h
diff --git a/Source/core/rendering/RenderFullScreen.h b/Source/core/rendering/RenderFullScreen.h
deleted file mode 100644
index 6918ef94da9f42a87953bfc6a2ca77027f3eef2f..0000000000000000000000000000000000000000
--- a/Source/core/rendering/RenderFullScreen.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * 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 RenderFullScreen_h
-#define RenderFullScreen_h
-
-#include "core/rendering/RenderFlexibleBox.h"
-#include "core/rendering/style/StyleInheritedData.h"
-
-namespace WebCore {
-
-class RenderFullScreen FINAL : public RenderFlexibleBox {
-public:
-    static RenderFullScreen* createAnonymous(Document*);
-
-    virtual bool isRenderFullScreen() const { return true; }
-    virtual const char* renderName() const { return "RenderFullScreen"; }
-
-    void setPlaceholder(RenderBlock*);
-    RenderBlock* placeholder() { return m_placeholder; }
-    void createPlaceholder(PassRefPtr<RenderStyle>, const LayoutRect& frameRect);
-
-
-    static RenderObject* wrapRenderer(RenderObject*, RenderObject*, Document*);
-    void unwrapRenderer();
-
-private:
-    RenderFullScreen();
-    virtual void willBeDestroyed();
-
-protected:
-    RenderBlock* m_placeholder;
-};
-    
-inline RenderFullScreen* toRenderFullScreen(RenderObject* object)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(object->isRenderFullScreen());
-    return static_cast<RenderFullScreen*>(object);
-}
-    
-// This will catch anyone doing an unnecessary cast:
-void toRenderFullScreen(RenderFullScreen*);
-}
-
-#endif