DocType strings should be 8 bit wide

Source/core/html/parser/HTMLConstructionSite.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011 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
@@ skipping 403 matching lines @@
 
 void HTMLConstructionSite::finishedParsing()
 {
     m_document->finishedParsing();
 }
 
 void HTMLConstructionSite::insertDoctype(AtomicHTMLToken* token)
 {
     ASSERT(token->type() == HTMLToken::DOCTYPE);
 
-    const String& publicId = String::adopt(token->publicIdentifier());
-    const String& systemId = String::adopt(token->systemIdentifier());
+    const String& publicId = StringImpl::create8BitIfPossible(token->publicIdentifier());
+    const String& systemId = StringImpl::create8BitIfPossible(token->systemIdentifier());
     RefPtr<DocumentType> doctype = DocumentType::create(m_document, token->name(), publicId, systemId);
     attachLater(m_attachmentRoot, doctype.release());
 
     // DOCTYPE nodes are only processed when parsing fragments w/o contextElements, which
     // never occurs.  However, if we ever chose to support such, this code is subtly wrong,
     // because context-less fragments can determine their own quirks mode, and thus change
     // parsing rules (like <p> inside <table>).  For now we ASSERT that we never hit this code
     // in a fragment, as changing the owning document's compatibility mode would be wrong.
     ASSERT(!m_isParsingFragment);
     if (m_isParsingFragment)
@@ skipping 324 matching lines @@
 {
     HTMLConstructionSiteTask task(HTMLConstructionSiteTask::Insert);
     findFosterSite(task);
     task.child = node;
     ASSERT(task.parent);
 
     m_taskQueue.append(task);
 }
 
 }