Remove usesCompositedScrolling

sky/engine/core/rendering/RenderBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 1148 matching lines @@
 
     LayoutPoint adjustedPaintOffset = paintOffset + location();
 
     PaintPhase phase = paintInfo.phase;
 
     LayoutRect overflowBox;
     // Check if we need to do anything at all.
     // FIXME: Could eliminate the isDocumentElement() check if we fix background painting so that the RenderView
     // paints the root's background.
     if (!isDocumentElement()) {
-        overflowBox = overflowRectForPaintRejection();
+        overflowBox = visualOverflowRect();
         overflowBox.moveBy(adjustedPaintOffset);
         if (!overflowBox.intersects(paintInfo.rect))
             return;
     }
 
     // There are some cases where not all clipped visual overflow is accounted for.
     // FIXME: reduce the number of such cases.
     ContentsClipBehavior contentsClipBehavior = ForceContentsClip;
     if (hasOverflowClip() && !hasControlClip() && !(shouldPaintSelectionGaps() && phase == PaintPhaseForeground) && !hasCaret())
         contentsClipBehavior = SkipContentsClipIfPossible;
@@ skipping 1763 matching lines @@
 void RenderBlock::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const RenderObject* obj) const
 {
     showRenderObject();
     for (const RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox())
         root->showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, 1);
 }
 
 #endif
 
 } // namespace blink