Moved text decoding to the parser thread

Source/core/html/parser/HTMLTokenizer.h

Index: Source/core/html/parser/HTMLTokenizer.h
diff --git a/Source/core/html/parser/HTMLTokenizer.h b/Source/core/html/parser/HTMLTokenizer.h
index aa7c059bf78244fd07539ef77799a2881245fb22..f0e93f0dcf727bb9c3b50f4b8ca5fb9c4f60d80a 100644
--- a/Source/core/html/parser/HTMLTokenizer.h
+++ b/Source/core/html/parser/HTMLTokenizer.h
@@ -176,7 +176,7 @@ public:
     //  * CDATA sections in foreign content will be tokenized as bogus comments
     //    instead of as character tokens.
     //
-    void updateStateFor(const AtomicString& tagName);
+    void updateStateFor(const String& tagName);
 
     bool forceNullCharacterReplacement() const { return m_forceNullCharacterReplacement; }
     void setForceNullCharacterReplacement(bool value) { m_forceNullCharacterReplacement = value; }