Replaced HTMLIdentifier with an atomized string factory function

Source/core/html/parser/HTMLDocumentParser.cpp

Index: Source/core/html/parser/HTMLDocumentParser.cpp
diff --git a/Source/core/html/parser/HTMLDocumentParser.cpp b/Source/core/html/parser/HTMLDocumentParser.cpp
index 2c2633b2f90e1dbb0ff280832940b40e5fd25cba..2008ae5f0e144949d5a92c582b8e884ea3dff150 100644
--- a/Source/core/html/parser/HTMLDocumentParser.cpp
+++ b/Source/core/html/parser/HTMLDocumentParser.cpp
@@ -32,7 +32,6 @@
 #include "core/html/HTMLDocument.h"
 #include "core/html/parser/AtomicHTMLToken.h"
 #include "core/html/parser/BackgroundHTMLParser.h"
-#include "core/html/parser/HTMLIdentifier.h"
 #include "core/html/parser/HTMLParserScheduler.h"
 #include "core/html/parser/HTMLParserThread.h"
 #include "core/html/parser/HTMLScriptRunner.h"
@@ -658,8 +657,6 @@ void HTMLDocumentParser::startBackgroundParser()
     ASSERT(!m_haveBackgroundParser);
     m_haveBackgroundParser = true;
 
-    HTMLIdentifier::init();
-
     RefPtr<WeakReference<BackgroundHTMLParser> > reference = WeakReference<BackgroundHTMLParser>::createUnbound();
     m_backgroundParser = WeakPtr<BackgroundHTMLParser>(reference);