InlinedVisitor: Migrate xml to use inlined tracing

Source/core/xml/parser/XMLErrors.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:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 32 matching lines @@
 
 const int maxErrors = 25;
 
 XMLErrors::XMLErrors(Document* document)
     : m_document(document)
     , m_errorCount(0)
     , m_lastErrorPosition(TextPosition::belowRangePosition())
 {
 }
 
-void XMLErrors::trace(Visitor* visitor)
+DEFINE_TRACE(XMLErrors)
 {
     visitor->trace(m_document);
 }
 
 void XMLErrors::handleError(ErrorType type, const char* message, int lineNumber, int columnNumber)
 {
     handleError(type, message, TextPosition(OrdinalNumber::fromOneBasedInt(lineNumber), OrdinalNumber::fromOneBasedInt(columnNumber)));
 }
 
 void XMLErrors::handleError(ErrorType type, const char* message, TextPosition position)
@@ skipping 101 matching lines @@
     if (firstChild)
         documentElement->parserInsertBefore(reportElement, *firstChild);
     else
         documentElement->parserAppendChild(reportElement);
 
     // FIXME: Why do we need to call this manually?
     m_document->updateRenderTreeIfNeeded();
 }
 
 } // namespace blink