Remove OverlayScrollbarSizeRelevancy.

sky/engine/core/rendering/compositing/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 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
@@ skipping 290 matching lines @@
         return false;
 
     // We ignore overflow clip here; we want composited overflow content to
     // behave as if it lives in an unclipped universe so it can prepaint, etc.
     // This means that we need to check if we are actually clipped before
     // setting up m_ancestorClippingLayer otherwise
     // updateAncestorClippingLayerGeometry will fail as the clip rect will be
     // infinite.
     // FIXME: this should use cached clip rects, but this sometimes give
     // inaccurate results (and trips the ASSERTS in RenderLayerClipper).
-    ClipRectsContext clipRectsContext(compositingAncestor, UncachedClipRects, IgnoreOverlayScrollbarSize);
+    ClipRectsContext clipRectsContext(compositingAncestor, UncachedClipRects);
     clipRectsContext.setIgnoreOverflowClip();
     IntRect parentClipRect = pixelSnappedIntRect(m_owningLayer.clipper().backgroundClipRect(clipRectsContext).rect());
     return parentClipRect != PaintInfo::infiniteRect();
 }
 
 bool CompositedLayerMapping::updateGraphicsLayerConfiguration()
 {
     ASSERT(m_owningLayer.compositor()->lifecycle().state() == DocumentLifecycle::InCompositingUpdate);
 
     // Note carefully: here we assume that the compositing state of all descendants have been updated already,
@@ skipping 347 matching lines @@
         IntPoint scrollOrigin(renderBox->borderLeft(), renderBox->borderTop());
         graphicsLayerParentLocation = scrollOrigin - scrollOffset;
     }
 }
 
 void CompositedLayerMapping::updateAncestorClippingLayerGeometry(const RenderLayer* compositingContainer, const IntPoint& snappedOffsetFromCompositedAncestor, IntPoint& graphicsLayerParentLocation)
 {
     if (!compositingContainer || !m_ancestorClippingLayer)
         return;
 
-    ClipRectsContext clipRectsContext(compositingContainer, PaintingClipRectsIgnoringOverflowClip, IgnoreOverlayScrollbarSize);
+    ClipRectsContext clipRectsContext(compositingContainer, PaintingClipRectsIgnoringOverflowClip);
     IntRect parentClipRect = pixelSnappedIntRect(m_owningLayer.clipper().backgroundClipRect(clipRectsContext).rect());
     ASSERT(parentClipRect != PaintInfo::infiniteRect());
     m_ancestorClippingLayer->setPosition(FloatPoint(parentClipRect.location() - graphicsLayerParentLocation));
     m_ancestorClippingLayer->setSize(parentClipRect.size());
 
     // backgroundRect is relative to compositingContainer, so subtract snappedOffsetFromCompositedAncestor.X/snappedOffsetFromCompositedAncestor.Y to get back to local coords.
     m_ancestorClippingLayer->setOffsetFromRenderer(parentClipRect.location() - snappedOffsetFromCompositedAncestor);
 
     // The primary layer is then parented in, and positioned relative to this clipping layer.
     graphicsLayerParentLocation = parentClipRect.location();
@@ skipping 1480 matching lines @@
     } else if (graphicsLayer == m_scrollingBlockSelectionLayer.get()) {
         name = "Scrolling Block Selection Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink