Moved text decoding to the parser thread

Source/core/html/parser/TextDocumentParser.cpp

Index: Source/core/html/parser/TextDocumentParser.cpp
diff --git a/Source/core/html/parser/TextDocumentParser.cpp b/Source/core/html/parser/TextDocumentParser.cpp
index 38175a0f6bfea99a4338b6a7d7afcd1f8b2bd707..712637318efc297425bfa1dd54a534386d8bc2e5 100644
--- a/Source/core/html/parser/TextDocumentParser.cpp
+++ b/Source/core/html/parser/TextDocumentParser.cpp
@@ -49,6 +49,13 @@ void TextDocumentParser::append(PassRefPtr<StringImpl> text)
     HTMLDocumentParser::append(text);
 }
 
+void TextDocumentParser::appendBytes(const char* data, size_t length)
+{
+    if (!m_haveInsertedFakePreElement)
+        insertFakePreElement();
+    HTMLDocumentParser::appendBytes(data, length);
+}
+
 void TextDocumentParser::insertFakePreElement()
 {
     // In principle, we should create a specialized tree builder for