Use tighter typing in editing: htmlediting create methods

Source/core/editing/ReplaceSelectionCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009, 2010, 2011 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:
  * 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
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 #include "core/editing/TextIterator.h"
 #include "core/editing/VisibleUnits.h"
 #include "core/editing/htmlediting.h"
 #include "core/editing/markup.h"
 #include "core/events/BeforeTextInsertedEvent.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/HTMLBRElement.h"
 #include "core/html/HTMLElement.h"
 #include "core/html/HTMLInputElement.h"
+#include "core/html/HTMLLIElement.h"
 #include "core/rendering/RenderObject.h"
 #include "core/rendering/RenderText.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 using namespace HTMLNames;
 
 enum EFragmentType { EmptyFragment, SingleTextNodeFragment, TreeFragment };
@@ skipping 1143 matching lines @@
     Position lastPositionToSelect;
     if (fragment.hasInterchangeNewlineAtEnd()) {
         VisiblePosition endOfInsertedContent = positionAtEndOfInsertedContent();
         VisiblePosition next = endOfInsertedContent.next(CannotCrossEditingBoundary);
 
         if (selectionEndWasEndOfParagraph || !isEndOfParagraph(endOfInsertedContent) || next.isNull()) {
             if (!isStartOfParagraph(endOfInsertedContent)) {
                 setEndingSelection(endOfInsertedContent);
                 Node* enclosingNode = enclosingBlock(endOfInsertedContent.deepEquivalent().deprecatedNode());
                 if (isListItem(enclosingNode)) {
-                    RefPtrWillBeRawPtr<Node> newListItem = createListItemElement(document());
+                    RefPtrWillBeRawPtr<HTMLLIElement> newListItem = createListItemElement(document());
                     insertNodeAfter(newListItem, enclosingNode);
                     setEndingSelection(VisiblePosition(firstPositionInNode(newListItem.get())));
                 } else {
                     // Use a default paragraph element (a plain div) for the empty paragraph, using the last paragraph
                     // block's style seems to annoy users.
                     insertParagraphSeparator(true, !startIsInsideMailBlockquote && highestEnclosingNodeOfType(endOfInsertedContent.deepEquivalent(),
                         isMailHTMLBlockquoteElement, CannotCrossEditingBoundary, insertedNodes.firstNodeInserted()->parentNode()));
                 }
 
                 // Select up to the paragraph separator that was added.
@@ skipping 299 matching lines @@
 void ReplaceSelectionCommand::trace(Visitor* visitor)
 {
     visitor->trace(m_startOfInsertedContent);
     visitor->trace(m_endOfInsertedContent);
     visitor->trace(m_insertionStyle);
     visitor->trace(m_documentFragment);
     CompositeEditCommand::trace(visitor);
 }
 
 } // namespace blink