Property propagation to anonymous children only needed by old multicol.

Source/core/rendering/RenderObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2235 matching lines @@
         if (!child->isAnonymous() || child->style()->styleType() != NOPSEUDO)
             continue;
 
         if (blockChildrenOnly && !child->isRenderBlock())
             continue;
 
         if (child->isRenderFullScreen() || child->isRenderFullScreenPlaceholder())
             continue;
 
         RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(style(), child->style()->display());
-        if (style()->specifiesColumns()) {
-            if (child->style()->specifiesColumns())
-                newStyle->inheritColumnPropertiesFrom(style());
-            if (child->style()->columnSpan())
-                newStyle->setColumnSpan(ColumnSpanAll);
+        if (!document().regionBasedColumnsEnabled()) {
+            if (style()->specifiesColumns()) {
+                if (child->style()->specifiesColumns())
+                    newStyle->inheritColumnPropertiesFrom(style());
+                if (child->style()->columnSpan())
+                    newStyle->setColumnSpan(ColumnSpanAll);
+            }
         }
 
         // Preserve the position style of anonymous block continuations as they can have relative position when
         // they contain block descendants of relative positioned inlines.
         if (child->isRelPositioned() && toRenderBlock(child)->isAnonymousBlockContinuation())
             newStyle->setPosition(child->style()->position());
 
         child->setStyle(newStyle.release());
     }
 }
@@ skipping 1210 matching lines @@
 {
     if (object1) {
         const blink::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif