Introduce PositionAlgorithm<Strategy>::editingPositionOf()

Source/core/editing/RenderedPosition.cpp

 /*
  * Copyright (C) 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 200 matching lines @@
     }
 
     return false;
 }
 
 Position RenderedPosition::positionAtLeftBoundaryOfBiDiRun() const
 {
     ASSERT(atLeftBoundaryOfBidiRun());
 
     if (atLeftmostOffsetInBox())
-        return createLegacyEditingPosition(m_layoutObject->node(), m_offset);
+        return Position::editingPositionOf(m_layoutObject->node(), m_offset);
 
-    return createLegacyEditingPosition(nextLeafChild()->layoutObject().node(), nextLeafChild()->caretLeftmostOffset());
+    return Position::editingPositionOf(nextLeafChild()->layoutObject().node(), nextLeafChild()->caretLeftmostOffset());
 }
 
 Position RenderedPosition::positionAtRightBoundaryOfBiDiRun() const
 {
     ASSERT(atRightBoundaryOfBidiRun());
 
     if (atRightmostOffsetInBox())
-        return createLegacyEditingPosition(m_layoutObject->node(), m_offset);
+        return Position::editingPositionOf(m_layoutObject->node(), m_offset);
 
-    return createLegacyEditingPosition(prevLeafChild()->layoutObject().node(), prevLeafChild()->caretRightmostOffset());
+    return Position::editingPositionOf(prevLeafChild()->layoutObject().node(), prevLeafChild()->caretRightmostOffset());
 }
 
 IntRect RenderedPosition::absoluteRect(LayoutUnit* extraWidthToEndOfLine) const
 {
     if (isNull())
         return IntRect();
 
     IntRect localRect = pixelSnappedIntRect(m_layoutObject->localCaretRect(m_inlineBox, m_offset, extraWidthToEndOfLine));
     return localRect == IntRect() ? IntRect() : m_layoutObject->localToAbsoluteQuad(FloatRect(localRect)).enclosingBoundingBox();
 }
@@ skipping 16 matching lines @@
 bool layoutObjectContainsPosition(LayoutObject* target, const Position& position)
 {
     for (LayoutObject* layoutObject = layoutObjectFromPosition(position); layoutObject && layoutObject->node(); layoutObject = layoutObject->parent()) {
         if (layoutObject == target)
             return true;
     }
     return false;
 }
 
 };