Introduce typed Node/Element iterators for range-based for loops of C++11.

Source/core/html/HTMLTextFormControlElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * 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 275 matching lines @@
 {
     ASSERT(index >= 0);
     if (index == 0) {
         Node* node = NodeTraversal::next(*innerEditor, innerEditor);
         if (node && node->isTextNode())
             return Position(node, 0, Position::PositionIsOffsetInAnchor);
         return Position(innerEditor, 0, Position::PositionIsOffsetInAnchor);
     }
     int remainingCharactersToMoveForward = index;
     Node* lastBrOrText = innerEditor;
-    for (Node* node = NodeTraversal::next(*innerEditor, innerEditor); node; node = NodeTraversal::next(*node, innerEditor)) {
+    for (Node& node : NodeTraversal::descendantsOf(*innerEditor)) {
         ASSERT(remainingCharactersToMoveForward >= 0);
-        if (node->hasTagName(brTag)) {
+        if (node.hasTagName(brTag)) {
             if (remainingCharactersToMoveForward == 0)
-                return positionBeforeNode(node);
+                return positionBeforeNode(&node);
             --remainingCharactersToMoveForward;
-            lastBrOrText = node;
+            lastBrOrText = &node;
             continue;
         }
 
-        if (node->isTextNode()) {
-            Text& text = toText(*node);
+        if (node.isTextNode()) {
+            Text& text = toText(node);
             if (remainingCharactersToMoveForward < static_cast<int>(text.length()))
                 return Position(&text, remainingCharactersToMoveForward);
             remainingCharactersToMoveForward -= text.length();
-            lastBrOrText = node;
+            lastBrOrText = &node;
             continue;
         }
 
         ASSERT_NOT_REACHED();
     }
     return lastPositionInOrAfterNode(lastBrOrText);
 }
 
 static int indexForPosition(HTMLElement* innerEditor, const Position& passedPosition)
 {
@@ skipping 638 matching lines @@
             Text* textNode = toText(node);
             size_t firstLineBreak = textNode->data().find('\n', isPivotNode ? pivotPosition.offsetInContainerNode() : 0);
             if (firstLineBreak != kNotFound)
                 return Position(textNode, firstLineBreak + 1);
         }
     }
     return endOfInnerText(textFormControl);
 }
 
 } // namespace blink