Revert 169395 "Set geometry dirty bits on composited layer mappi..."

trunk/Source/core/rendering/RenderLayer.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 3539 matching lines @@
         if (RenderLayer* compositingParent = enclosingCompositingLayer(ExcludeSelf))
             compositingParent->compositedLayerMapping()->setNeedsGeometryUpdate();
     }
 
     m_compositedLayerMapping.clear();
 
     if (!layerBeingDestroyed)
         updateOrRemoveFilterEffectRenderer();
 }
 
-void RenderLayer::setGroupedMapping(CompositedLayerMapping* groupedMapping, bool layerBeingDestroyed)
-{
-    if (!layerBeingDestroyed && m_groupedMapping)
-        m_groupedMapping->setNeedsGeometryUpdate();
-    m_groupedMapping = groupedMapping;
-    if (!layerBeingDestroyed && m_groupedMapping)
-        m_groupedMapping->setNeedsGeometryUpdate();
-}
-
 bool RenderLayer::hasCompositedMask() const
 {
     return m_compositedLayerMapping && m_compositedLayerMapping->hasMaskLayer();
 }
 
 bool RenderLayer::hasCompositedClippingMask() const
 {
     return m_compositedLayerMapping && m_compositedLayerMapping->hasChildClippingMaskLayer();
 }
 
@@ skipping 494 matching lines @@
     }
 }
 
 void showLayerTree(const WebCore::RenderObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif