Delete RenderLayerCompositor::layerWillBeRemoved

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 1382 matching lines @@
 
     if (child->isSelfPaintingLayer() || child->hasSelfPaintingLayerDescendant())
         setAncestorChainHasSelfPaintingLayerDescendant();
 
     if (child->blendInfo().hasBlendMode() || child->blendInfo().childLayerHasBlendMode())
         m_blendInfo.setAncestorChainBlendedDescendant();
 }
 
 RenderLayer* RenderLayer::removeChild(RenderLayer* oldChild)
 {
-    if (!renderer()->documentBeingDestroyed())
-        compositor()->layerWillBeRemoved(this, oldChild);
-
-    // remove the child
     if (oldChild->previousSibling())
         oldChild->previousSibling()->setNextSibling(oldChild->nextSibling());
     if (oldChild->nextSibling())
         oldChild->nextSibling()->setPreviousSibling(oldChild->previousSibling());
 
     if (m_first == oldChild)
         m_first = oldChild->nextSibling();
     if (m_last == oldChild)
         m_last = oldChild->previousSibling();
 
@@ skipping 26 matching lines @@
         dirtyAncestorChainHasSelfPaintingLayerDescendantStatus();
 
     return oldChild;
 }
 
 void RenderLayer::removeOnlyThisLayer()
 {
     if (!m_parent)
         return;
 
-    compositor()->layerWillBeRemoved(m_parent, this);
-
-    // Dirty the clip rects.
     m_clipper.clearClipRectsIncludingDescendants();
 
     RenderLayer* nextSib = nextSibling();
 
     // Remove the child reflection layer before moving other child layers.
     // The reflection layer should not be moved to the parent.
     if (m_reflectionInfo)
         removeChild(m_reflectionInfo->reflectionLayer());
 
     // Now walk our kids and reattach them to our parent.
@@ skipping 2408 matching lines @@
     }
 }
 
 void showLayerTree(const WebCore::RenderObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif