Fix for an issue while breaking out of an empty list item in case of nested lists

Source/core/editing/htmlediting.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 662 matching lines @@
     for (Node* n = node; n && n->parentNode(); n = n->parentNode()) {
         if (n->hasTagName(liTag) || (isListElement(n->parentNode()) && n != root))
             return n;
         if (n == root || isTableCell(n))
             return 0;
     }
 
     return 0;
 }
 
-static HTMLElement* embeddedSublist(Node* listItem)
-{
-    // Check the DOM so that we'll find collapsed sublists without renderers.
-    for (Node* n = listItem->firstChild(); n; n = n->nextSibling()) {
-        if (isListElement(n))
-            return toHTMLElement(n);
-    }
-
-    return 0;
-}
-
-static Node* appendedSublist(Node* listItem)
-{
-    // Check the DOM so that we'll find collapsed sublists without renderers.
-    for (Node* n = listItem->nextSibling(); n; n = n->nextSibling()) {
-        if (isListElement(n))
-            return toHTMLElement(n);
-        if (isListItem(listItem))
-            return 0;
-    }
-
-    return 0;
-}
-
 // FIXME: This method should not need to call isStartOfParagraph/isEndOfParagraph
 Node* enclosingEmptyListItem(const VisiblePosition& visiblePos)
 {
     // Check that position is on a line by itself inside a list item
     Node* listChildNode = enclosingListChild(visiblePos.deepEquivalent().deprecatedNode());
     if (!listChildNode || !isStartOfParagraph(visiblePos) || !isEndOfParagraph(visiblePos))
         return 0;
 
     VisiblePosition firstInListChild(firstPositionInOrBeforeNode(listChildNode));
     VisiblePosition lastInListChild(lastPositionInOrAfterNode(listChildNode));
 
     if (firstInListChild != visiblePos || lastInListChild != visiblePos)
         return 0;
 
-    if (embeddedSublist(listChildNode) || appendedSublist(listChildNode))
-        return 0;
-
     return listChildNode;
 }
 
 HTMLElement* outermostEnclosingList(Node* node, Node* rootList)
 {
     HTMLElement* list = enclosingList(node);
     if (!list)
         return 0;
 
     while (HTMLElement* nextList = enclosingList(list)) {
@@ skipping 426 matching lines @@
     // if the selection starts just before a paragraph break, skip over it
     if (isEndOfParagraph(visiblePosition))
         return visiblePosition.next().deepEquivalent().downstream();
 
     // otherwise, make sure to be at the start of the first selected node,
     // instead of possibly at the end of the last node before the selection
     return visiblePosition.deepEquivalent().downstream();
 }
 
 } // namespace WebCore