Make Position::BeforeNode() to take const Node& instead of Node*

third_party/WebKit/Source/core/html/TextControlElement.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 321 matching lines @@
     Node* node = NodeTraversal::Next(*inner_editor, inner_editor);
     if (node && node->IsTextNode())
       return Position(node, 0);
     return Position(inner_editor, 0);
   }
   unsigned remaining_characters_to_move_forward = index;
   Node* last_br_or_text = inner_editor;
   for (Node& node : NodeTraversal::DescendantsOf(*inner_editor)) {
     if (node.HasTagName(brTag)) {
       if (remaining_characters_to_move_forward == 0)
-        return Position::BeforeNode(&node);
+        return Position::BeforeNode(*&node);
       --remaining_characters_to_move_forward;
       last_br_or_text = &node;
       continue;
     }
 
     if (node.IsTextNode()) {
       Text& text = ToText(node);
       if (remaining_characters_to_move_forward < text.length())
         return Position(&text, remaining_characters_to_move_forward);
       remaining_characters_to_move_forward -= text.length();
       last_br_or_text = &node;
       continue;
     }
 
     NOTREACHED();
   }
   return LastPositionInOrAfterNode(last_br_or_text);
 }
 
 unsigned TextControlElement::IndexForPosition(HTMLElement* inner_editor,
                                               const Position& passed_position) {
   if (!inner_editor || !inner_editor->contains(passed_position.AnchorNode()) ||
       passed_position.IsNull())
     return 0;
 
-  if (Position::BeforeNode(inner_editor) == passed_position)
+  if (Position::BeforeNode(*inner_editor) == passed_position)
     return 0;
 
   unsigned index = 0;
   Node* start_node = passed_position.ComputeNodeBeforePosition();
   if (!start_node)
     start_node = passed_position.ComputeContainerNode();
   if (start_node == inner_editor && passed_position.IsAfterAnchor())
     start_node = inner_editor->lastChild();
   DCHECK(start_node);
   DCHECK(inner_editor->contains(start_node));
@@ skipping 592 matching lines @@
 
 void TextControlElement::CopyNonAttributePropertiesFromElement(
     const Element& source) {
   const TextControlElement& source_element =
       static_cast<const TextControlElement&>(source);
   last_change_was_user_edit_ = source_element.last_change_was_user_edit_;
   HTMLFormControlElement::CopyNonAttributePropertiesFromElement(source);
 }
 
 }  // namespace blink