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

Source/core/editing/ApplyBlockElementCommand.cpp

 /*
  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2010 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:
  * 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
@@ skipping 132 matching lines @@
         // Don't put the next paragraph in the blockquote we just created for this paragraph unless
         // the next paragraph is in the same cell.
         if (enclosingCell && enclosingCell != enclosingNodeOfType(endOfNextParagraph.deepEquivalent(), &isTableCell))
             blockquoteForNextIndent = nullptr;
 
         // indentIntoBlockquote could move more than one paragraph if the paragraph
         // is in a list item or a table. As a result, endAfterSelection could refer to a position
         // no longer in the document.
         if (endAfterSelection.isNotNull() && !endAfterSelection.deepEquivalent().inDocument())
             break;
-        // Sanity check: Make sure our moveParagraph calls didn't remove endOfNextParagraph.deepEquivalent().deprecatedNode()
+        // Sanity check: Make sure our moveParagraph calls didn't remove endOfNextParagraph.deepEquivalent().anchorNode()
         // If somehow, e.g. mutation event handler, we did, return to prevent crashes.
         if (endOfNextParagraph.isNotNull() && !endOfNextParagraph.deepEquivalent().inDocument())
             return;
         endOfCurrentParagraph = endOfNextParagraph;
     }
 }
 
 static bool isNewLineAtPosition(const Position& position)
 {
     Node* textNode = position.containerNode();
@@ skipping 45 matching lines @@
             if (isStartAndEndOfLastParagraphOnSameNode) {
                 ASSERT(m_endOfLastParagraph.offsetInContainerNode() >= startOffset);
                 m_endOfLastParagraph = Position(startText, m_endOfLastParagraph.offsetInContainerNode() - startOffset);
             }
         }
     }
 
     document().updateLayoutTreeIfNeeded();
 
     if (const ComputedStyle* endStyle = computedStyleOfEnclosingTextNode(end)) {
-        bool isEndAndEndOfLastParagraphOnSameNode = computedStyleOfEnclosingTextNode(m_endOfLastParagraph) && end.deprecatedNode() == m_endOfLastParagraph.deprecatedNode();
+        bool isEndAndEndOfLastParagraphOnSameNode = computedStyleOfEnclosingTextNode(m_endOfLastParagraph) && end.anchorNode() == m_endOfLastParagraph.anchorNode();
         // Include \n at the end of line if we're at an empty paragraph
         if (endStyle->preserveNewline() && start == end && end.offsetInContainerNode() < end.containerNode()->maxCharacterOffset()) {
             int endOffset = end.offsetInContainerNode();
             if (!isNewLineAtPosition(end.previous()) && isNewLineAtPosition(end))
                 end = Position(end.containerText(), endOffset + 1);
             if (isEndAndEndOfLastParagraphOnSameNode && end.offsetInContainerNode() >= m_endOfLastParagraph.offsetInContainerNode())
                 m_endOfLastParagraph = end;
         }
 
         // If end is in the middle of a text node, split.
@@ skipping 59 matching lines @@
     return element.release();
 }
 
 DEFINE_TRACE(ApplyBlockElementCommand)
 {
     visitor->trace(m_endOfLastParagraph);
     CompositeEditCommand::trace(visitor);
 }
 
 }