Merge 108543

Source/WebCore/rendering/RenderBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 438 matching lines @@
 }
 
 RenderBlock* RenderBlock::clone() const
 {
     RenderBlock* cloneBlock;
     if (isAnonymousBlock()) {
         cloneBlock = createAnonymousBlock();
         cloneBlock->setChildrenInline(childrenInline());
     }
     else {
-        cloneBlock = new (renderArena()) RenderBlock(node());
+        RenderObject* cloneRenderer = node()->createRenderer(renderArena(), style());
+        cloneBlock = toRenderBlock(cloneRenderer);
         cloneBlock->setStyle(style());
 
         // This takes care of setting the right value of childrenInline in case
         // generated content is added to cloneBlock and 'this' does not have
         // generated content added yet.
         cloneBlock->setChildrenInline(cloneBlock->firstChild() ? cloneBlock->firstChild()->isInline() : childrenInline());
     }
     return cloneBlock;
 }
 
 void RenderBlock::splitBlocks(RenderBlock* fromBlock, RenderBlock* toBlock,
                               RenderBlock* middleBlock,
                               RenderObject* beforeChild, RenderBoxModelObject* oldCont)
 {
     // Create a clone of this inline.
     RenderBlock* cloneBlock = clone();
     if (!isAnonymousBlock())
         cloneBlock->setContinuation(oldCont);
 
+    if (!beforeChild && isAfterContent(lastChild()))
+        beforeChild = lastChild();
+
+    // If we are moving inline children from |this| to cloneBlock, then we need
+    // to clear our line box tree.
+    if (beforeChild && childrenInline())
+        deleteLineBoxTree();
+
     // Now take all of the children from beforeChild to the end and remove
     // them from |this| and place them in the clone.
-    if (!beforeChild && isAfterContent(lastChild()))
-        beforeChild = lastChild();
     moveChildrenTo(cloneBlock, beforeChild, 0, true);
     
     // Hook |clone| up as the continuation of the middle block.
     if (!cloneBlock->isAnonymousBlock())
         middleBlock->setContinuation(cloneBlock);
 
     // We have been reparented and are now under the fromBlock.  We need
     // to walk up our block parent chain until we hit the containing anonymous columns block.
     // Once we hit the anonymous columns block we're done.
     RenderBoxModelObject* curr = toRenderBoxModelObject(parent());
@@ skipping 6670 matching lines @@
 }
 
 String ValueToString<RenderBlock::FloatingObject*>::string(const RenderBlock::FloatingObject* floatingObject)
 {
     return String::format("%p (%dx%d %dx%d)", floatingObject, floatingObject->x(), floatingObject->y(), floatingObject->maxX(), floatingObject->maxY());
 }
 
 #endif
 
 } // namespace WebCore