Unreviewed, rolling out r143797.
http://trac.webkit.org/changeset/143797
https://bugs.webkit.org/show_bug.cgi?id=110724

Causes assertion failures in multiple tests. (Requested by
vsevik on #webkit).

Patch by Sheriff Bot <webkit.review.bot@gmail.com> on 2013-02-24

* dom/DocumentParser.h:
(DocumentParser):
* html/parser/HTMLDocumentParser.cpp:
(WebCore::HTMLDocumentParser::HTMLDocumentParser):
* html/parser/HTMLDocumentParser.h:
(HTMLDocumentParser):
(WebCore::HTMLDocumentParser::shouldUseThreading):
* loader/DocumentWriter.cpp:
(WebCore::DocumentWriter::replaceDocument):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143886 268f45cc-cd09-0410-ab3c-d52691b4dbfc