Make Document.charset an alias of characterSet, as per spec

third_party/WebKit/Source/core/dom/ScriptLoader.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 211 matching lines @@
 
     if (!contextDocument || !contextDocument->allowExecutingScripts(m_element))
         return false;
 
     if (!isScriptForEventSupported())
         return false;
 
     if (!client->charsetAttributeValue().isEmpty())
         m_characterEncoding = client->charsetAttributeValue();
     else
-        m_characterEncoding = elementDocument.charset();
+        m_characterEncoding = elementDocument.characterSet();
 
     if (client->hasSourceAttribute()) {
         FetchRequest::DeferOption defer = FetchRequest::NoDefer;
         if (!m_parserInserted || client->asyncAttributeValue() || client->deferAttributeValue())
             defer = FetchRequest::LazyLoad;
         if (!fetchScript(client->sourceAttributeValue(), defer))
             return false;
     }
 
     if (client->hasSourceAttribute() && client->deferAttributeValue() && m_parserInserted && !client->asyncAttributeValue()) {
@@ skipping 271 matching lines @@
     if (isHTMLScriptLoader(element))
         return toHTMLScriptElement(element)->loader();
 
     if (isSVGScriptLoader(element))
         return toSVGScriptElement(element)->loader();
 
     return 0;
 }
 
 } // namespace blink