Recalculate column heights as part of column set layout.

third_party/WebKit/Source/core/layout/LayoutBlockFlow.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 372 matching lines @@
         clearNeedsRecalcLogicalWidthAfterLayoutChildren();
         setPreferredLogicalWidthsDirty(MarkOnlyThis);
         updateLogicalWidthAndColumnWidth();
     }
 
     // Expand our intrinsic height to encompass floats.
     if (lowestFloatLogicalBottom() > (logicalHeight() - afterEdge) && createsNewFormattingContext())
         setLogicalHeight(lowestFloatLogicalBottom() + afterEdge);
 
     if (LayoutMultiColumnFlowThread* flowThread = multiColumnFlowThread()) {
-        if (flowThread->recalculateColumnHeights()) {
+        if (flowThread->columnHeightsChanged()) {
             setChildNeedsLayout(MarkOnlyThis);
             return false;
         }
     }
 
     if (shouldBreakAtLineToAvoidWidow()) {
         setEverHadLayout();
         return false;
     }
 
@@ skipping 2720 matching lines @@
     FrameView* frameView = document().view();
     LayoutUnit top = (style()->position() == FixedPosition) ? 0 : frameView->scrollOffset().height();
     int visibleHeight = frameView->visibleContentRect(IncludeScrollbars).height();
     if (size().height() < visibleHeight)
         top += (visibleHeight - size().height()) / 2;
     setY(top);
     dialog->setCentered(top);
 }
 
 } // namespace blink