Oilpan: move editing objects to the heap.

Source/core/editing/InsertListCommand.cpp

 /*
  * Copyright (C) 2006, 2010 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 261 matching lines @@
         // A paragraph is visually a list item minus a list marker.  The paragraph will be moved.
         start = startOfParagraph(originalStart, CanSkipOverEditingBoundary);
         end = endOfParagraph(start, CanSkipOverEditingBoundary);
         nextListChild = enclosingListChild(end.next().deepEquivalent().deprecatedNode(), listNode);
         ASSERT(nextListChild != listChildNode);
         previousListChild = enclosingListChild(start.previous().deepEquivalent().deprecatedNode(), listNode);
         ASSERT(previousListChild != listChildNode);
     }
     // When removing a list, we must always create a placeholder to act as a point of insertion
     // for the list content being removed.
-    RefPtr<Element> placeholder = createBreakElement(document());
-    RefPtr<Element> nodeToInsert = placeholder;
+    RefPtrWillBeRawPtr<Element> placeholder = createBreakElement(document());
+    RefPtrWillBeRawPtr<Element> nodeToInsert = placeholder;
     // If the content of the list item will be moved into another list, put it in a list item
     // so that we don't create an orphaned list child.
     if (enclosingList(listNode)) {
         nodeToInsert = createListItemElement(document());
         appendNode(placeholder, nodeToInsert);
     }
 
     if (nextListChild && previousListChild) {
         // We want to pull listChildNode out of listNode, and place it before nextListChild
         // and after previousListChild, so we split listNode and insert it between the two lists.
@@ skipping 61 matching lines @@
         insertNodeAt(listItemElement, positionBeforeNode(nextList));
     else {
         // Create the list.
         listElement = createHTMLElement(document(), listTag);
         appendNode(listItemElement, listElement);
 
         if (start == end && isBlock(start.deepEquivalent().deprecatedNode())) {
             // Inserting the list into an empty paragraph that isn't held open
             // by a br or a '\n', will invalidate start and end.  Insert
             // a placeholder and then recompute start and end.
-            RefPtr<Node> placeholder = insertBlockPlaceholder(start.deepEquivalent());
+            RefPtrWillBeRawPtr<Node> placeholder = insertBlockPlaceholder(start.deepEquivalent());
             start = VisiblePosition(positionBeforeNode(placeholder.get()));
             end = start;
         }
 
         // Insert the list at a position visually equivalent to start of the
         // paragraph that is being moved into the list.
         // Try to avoid inserting it somewhere where it will be surrounded by
         // inline ancestors of start, since it is easier for editing to produce
         // clean markup when inline elements are pushed down as far as possible.
         Position insertionPos(start.deepEquivalent().upstream());
@@ skipping 19 matching lines @@
 
     if (listElement)
         return mergeWithNeighboringLists(listElement);
 
     if (canMergeLists(previousList, nextList))
         mergeIdenticalElements(previousList, nextList);
 
     return listElement;
 }
 
+void InsertListCommand::trace(Visitor* visitor)
+{
+    visitor->trace(m_listElement);
+    CompositeEditCommand::trace(visitor);
 }
+
+}