Introduce isRenderedCharacter(Position) function

Source/core/editing/Position.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2009 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 921 matching lines @@
         }
         if (box->containsCaretOffset(m_offset)) {
             // Return false for offsets inside composed characters.
             return m_offset == 0 || m_offset == textLayoutObject->nextOffset(textLayoutObject->previousOffset(m_offset));
         }
     }
 
     return false;
 }
 
-template <typename Strategy>
-bool PositionAlgorithm<Strategy>::isRenderedCharacter() const
+bool isRenderedCharacter(const Position& position)
 {
-    if (isNull())
+    if (position.isNull())
         return false;
-    ASSERT(isOffsetInAnchor());
-    if (!anchorNode()->isTextNode())
+    ASSERT(position.isOffsetInAnchor());
+    if (!position.anchorNode()->isTextNode())
         return false;
 
-    LayoutObject* layoutObject = anchorNode()->layoutObject();
+    LayoutObject* layoutObject = position.anchorNode()->layoutObject();
     if (!layoutObject)
         return false;
 
-    return toLayoutText(layoutObject)->isRenderedCharacter(offsetInContainerNode());
+    return toLayoutText(layoutObject)->isRenderedCharacter(position.offsetInContainerNode());
 }
 
 template <typename Strategy>
 InlineBoxPosition PositionAlgorithm<Strategy>::computeInlineBoxPosition(EAffinity affinity) const
 {
     return computeInlineBoxPosition(affinity, primaryDirectionOf(*anchorNode()));
 }
 
 static bool isNonTextLeafChild(LayoutObject* object)
 {
@@ skipping 395 matching lines @@
 
 void showTree(const blink::Position* pos)
 {
     if (pos)
         pos->showTreeForThis();
     else
         fprintf(stderr, "Cannot showTree for (nil)\n");
 }
 
 #endif