Refactoring: toHTMLElement(const Node*) added but never used. Using it.

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
@@ skipping 87 matching lines @@
 
 static bool isInterchangeNewlineNode(const Node *node)
 {
     DEFINE_STATIC_LOCAL(String, interchangeNewlineClassString, (AppleInterchangeNewline));
     return node && node->hasTagName(brTag) && toElement(node)->getAttribute(classAttr) == interchangeNewlineClassString;
 }
 
 static bool isInterchangeConvertedSpaceSpan(const Node *node)
 {
     DEFINE_STATIC_LOCAL(String, convertedSpaceSpanClassString, (AppleConvertedSpace));
-    return node->isHTMLElement() &&
-           static_cast<const HTMLElement *>(node)->getAttribute(classAttr) == convertedSpaceSpanClassString;
+    return node->isHTMLElement() && toHTMLElement(node)->getAttribute(classAttr) == convertedSpaceSpanClassString;
 }
 
 static Position positionAvoidingPrecedingNodes(Position pos)
 {
     // If we're already on a break, it's probably a placeholder and we shouldn't change our position.
     if (editingIgnoresContent(pos.deprecatedNode()))
         return pos;
 
     // We also stop when changing block flow elements because even though the visual position is the
     // same.  E.g.,
@@ skipping 736 matching lines @@
 {
     // We don't want to skip over any block elements.
     if (isBlock(node))
         return false;
 
     if (!node->isHTMLElement())
         return false;
 
     // We can skip over elements whose class attribute is
     // one of our internal classes.
-    const HTMLElement* element = static_cast<const HTMLElement*>(node);
+    const HTMLElement* element = toHTMLElement(node);
     const AtomicString& classAttributeValue = element->getAttribute(classAttr);
     if (classAttributeValue == AppleTabSpanClass
         || classAttributeValue == AppleConvertedSpace
         || classAttributeValue == ApplePasteAsQuotation)
         return true;
 
     return EditingStyle::elementIsStyledSpanOrHTMLEquivalent(element);
 }
 
 inline Node* nodeToSplitToAvoidPastingIntoInlineNodesWithStyle(const Position& insertionPos)
@@ skipping 610 matching lines @@
         removeNodeAndPruneAncestors(nodeAfterInsertionPos.get());
 
     VisibleSelection selectionAfterReplace(m_selectReplacement ? start : end, end);
 
     setEndingSelection(selectionAfterReplace);
 
     return true;
 }
 
 } // namespace WebCore