Clear absolute clip rects when transform changes

Source/core/rendering/RenderBlockFlow.cpp

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 300 matching lines @@
     LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
     while (!done)
         done = layoutBlockFlow(relayoutChildren, pageLogicalHeight, layoutScope);
 
     fitBorderToLinesIfNeeded();
 
     RenderView* renderView = view();
     if (renderView->layoutState()->pageLogicalHeight())
         setPageLogicalOffset(renderView->layoutState()->pageLogicalOffset(*this, logicalTop()));
 
-    updateLayerTransform();
+    updateLayerTransformAfterLayout();
 
     // Update our scroll information if we're overflow:auto/scroll/hidden now that we know if
     // we overflow or not.
     updateScrollInfoAfterLayout();
 
     // Repaint with our new bounds if they are different from our old bounds.
     bool didFullRepaint = repainter.repaintAfterLayout();
     if (!didFullRepaint && m_repaintLogicalTop != m_repaintLogicalBottom && (style()->visibility() == VISIBLE || enclosingLayer()->hasVisibleContent())) {
         if (RuntimeEnabledFeatures::repaintAfterLayoutEnabled())
             setShouldInvalidateOverflowForPaint(true);
@@ skipping 2471 matching lines @@
 RenderBlockFlow::RenderBlockFlowRareData& RenderBlockFlow::ensureRareData()
 {
     if (m_rareData)
         return *m_rareData;
 
     m_rareData = adoptPtr(new RenderBlockFlowRareData(this));
     return *m_rareData;
 }
 
 } // namespace WebCore