[CodeHealth] Use Position::anchorNode instead of deprecatedNode.

Source/core/editing/Caret.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 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 79 matching lines @@
 }
 
 bool CaretBase::updateCaretRect(Document* document, const PositionWithAffinity& caretPosition)
 {
     m_caretPainter = nullptr;
     m_caretLocalRect = LayoutRect();
 
     if (caretPosition.position().isNull())
         return false;
 
-    ASSERT(caretPosition.position().deprecatedNode()->layoutObject());
+    ASSERT(caretPosition.position().anchorNode()->layoutObject());
 
     // First compute a rect local to the layoutObject at the selection start.
     LayoutObject* layoutObject;
     m_caretLocalRect = localCaretRectOfPosition(caretPosition, layoutObject);
 
     // Get the layoutObject that will be responsible for painting the caret
     // (which is either the layoutObject we just found, or one of its containers).
-    m_caretPainter = caretLayoutObject(caretPosition.position().deprecatedNode());
+    m_caretPainter = caretLayoutObject(caretPosition.position().anchorNode());
 
     mapCaretRectToCaretPainter(layoutObject, m_caretPainter, m_caretLocalRect);
 
     return true;
 }
 
 bool CaretBase::updateCaretRect(Document* document, const VisiblePosition& caretPosition)
 {
     return updateCaretRect(document, PositionWithAffinity(caretPosition.deepEquivalent(), caretPosition.affinity()));
 }
@@ skipping 78 matching lines @@
     else
         element = node->parentElement();
 
     if (element && element->layoutObject())
         caretColor = element->layoutObject()->resolveColor(CSSPropertyColor);
 
     context->fillRect(caret, caretColor);
 }
 
 } // namespace blink