Revert "Re-land deferred compositing updates with fixed assumptions"

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 1750 matching lines @@
     m_stackingNode->updateIsNormalFlowOnly();
     updateSelfPaintingLayer();
 
     if (m_stackingNode->isStackingContainer())
         m_stackingNode->dirtyZOrderLists();
     else
         m_stackingNode->clearZOrderLists();
 
     m_stackingNode->dirtyStackingContainerZOrderLists();
 
-    compositor()->setNeedsToRecomputeCompositingRequirements();
+    compositor()->setShouldReevaluateCompositingAfterLayout();
     compositor()->setCompositingLayersNeedRebuild();
 }
 
 void RenderLayer::updateReflectionInfo(const RenderStyle* oldStyle)
 {
     if (renderer()->hasReflection()) {
         if (!m_reflectionInfo)
             m_reflectionInfo = adoptPtr(new RenderLayerReflectionInfo(toRenderBox(renderer())));
         m_reflectionInfo->updateAfterStyleChange(oldStyle);
     } else if (m_reflectionInfo) {
@@ skipping 2412 matching lines @@
     }
 }
 
 void showLayerTree(const WebCore::RenderObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif