Remove the concept of document.documentElement

sky/engine/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 86 matching lines @@
 
     layoutChildren(relayoutChildren, layoutScope, beforeEdge, afterEdge);
 
     LayoutUnit oldClientAfterEdge = clientLogicalBottom();
 
     updateLogicalHeight();
 
     if (previousHeight != logicalHeight())
         relayoutChildren = true;
 
-    layoutPositionedObjects(relayoutChildren || isDocumentElement(), oldLeft != logicalLeft() ? ForcedLayoutAfterContainingBlockMoved : DefaultLayout);
+    layoutPositionedObjects(relayoutChildren, oldLeft != logicalLeft() ? ForcedLayoutAfterContainingBlockMoved : DefaultLayout);
 
     // Add overflow from children (unless we're multi-column, since in that case all our child overflow is clipped anyway).
     computeOverflow(oldClientAfterEdge);
 }
 
 void RenderBlockFlow::determineLogicalLeftPositionForChild(RenderBox* child)
 {
     LayoutUnit startPosition = borderStart() + paddingStart();
     LayoutUnit totalAvailableLogicalWidth = borderAndPaddingLogicalWidth() + availableLogicalWidth();
 
@@ skipping 237 matching lines @@
     float logicalLeft = logicalLeftOffsetForLine(false).toFloat();
     float availableLogicalWidth = logicalRightOffsetForLine(false) - logicalLeft;
     updateLogicalWidthForAlignment(textAlign, 0, 0, logicalLeft, totalLogicalWidth, availableLogicalWidth, 0);
 
     if (!style()->isLeftToRightDirection())
         return logicalWidth() - logicalLeft;
     return logicalLeft;
 }
 
 } // namespace blink