Introduce PositionAlgorithm<Strategy>::editingPositionOf()

Source/core/layout/LayoutBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * 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 1756 matching lines @@
 
     return false;
 }
 
 Position LayoutBlock::positionForBox(InlineBox *box, bool start) const
 {
     if (!box)
         return Position();
 
     if (!box->layoutObject().nonPseudoNode())
-        return createLegacyEditingPosition(nonPseudoNode(), start ? caretMinOffset() : caretMaxOffset());
+        return Position::editingPositionOf(nonPseudoNode(), start ? caretMinOffset() : caretMaxOffset());
 
     if (!box->isInlineTextBox())
-        return createLegacyEditingPosition(box->layoutObject().nonPseudoNode(), start ? box->layoutObject().caretMinOffset() : box->layoutObject().caretMaxOffset());
+        return Position::editingPositionOf(box->layoutObject().nonPseudoNode(), start ? box->layoutObject().caretMinOffset() : box->layoutObject().caretMaxOffset());
 
     InlineTextBox* textBox = toInlineTextBox(box);
-    return createLegacyEditingPosition(box->layoutObject().nonPseudoNode(), start ? textBox->start() : textBox->start() + textBox->len());
+    return Position::editingPositionOf(box->layoutObject().nonPseudoNode(), start ? textBox->start() : textBox->start() + textBox->len());
 }
 
 static inline bool isEditingBoundary(LayoutObject* ancestor, LayoutObject* child)
 {
     ASSERT(!ancestor || ancestor->nonPseudoNode());
     ASSERT(child && child->nonPseudoNode());
     return !ancestor || !ancestor->parent() || (ancestor->hasLayer() && ancestor->parent()->isLayoutView())
         || ancestor->nonPseudoNode()->hasEditableStyle() == child->nonPseudoNode()->hasEditableStyle();
 }
 
@@ skipping 1124 matching lines @@
 void LayoutBlock::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const LayoutObject* obj) const
 {
     showLayoutObject();
     for (const RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox())
         root->showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, 1);
 }
 
 #endif
 
 } // namespace blink