Remove unused includes from various .cpp files in core/

Source/core/xml/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 16 matching lines @@
  */
 
 #include "config.h"
 #include "core/xml/XMLErrors.h"
 
 #include "HTMLNames.h"
 #include "SVGNames.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/Text.h"
-#include "core/page/Frame.h"
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 const int maxErrors = 25;
 
 XMLErrors::XMLErrors(Document* document)
     : m_document(document)
@@ skipping 112 matching lines @@
     else
         documentElement->parserAppendChild(reportElement);
 
     reportElement->lazyAttach();
 
     // FIXME: Why do we need to call this manually?
     m_document->updateStyleIfNeeded();
 }
 
 } // namespace WebCore