Revert of Moved text decoding to the parser thread

Source/core/html/parser/BackgroundHTMLParser.h

Index: Source/core/html/parser/BackgroundHTMLParser.h
diff --git a/Source/core/html/parser/BackgroundHTMLParser.h b/Source/core/html/parser/BackgroundHTMLParser.h
index f1a76fd000577676c9ef0ea5b580076ebfeb221d..b9b5a511c49d5ef2ff926353764448aa7ffb06f4 100644
--- a/Source/core/html/parser/BackgroundHTMLParser.h
+++ b/Source/core/html/parser/BackgroundHTMLParser.h
@@ -31,6 +31,8 @@
 #include "core/html/parser/HTMLParserOptions.h"
 #include "core/html/parser/HTMLPreloadScanner.h"
 #include "core/html/parser/HTMLSourceTracker.h"
+#include "core/html/parser/HTMLToken.h"
+#include "core/html/parser/HTMLTokenizer.h"
 #include "core/html/parser/HTMLTreeBuilderSimulator.h"
 #include "core/html/parser/XSSAuditorDelegate.h"
 #include "wtf/PassOwnPtr.h"
@@ -39,7 +41,6 @@
 namespace WebCore {
 
 class HTMLDocumentParser;
-class SharedBuffer;
 class XSSAuditor;
 
 class BackgroundHTMLParser {
@@ -50,10 +51,13 @@ public:
         WeakPtr<HTMLDocumentParser> parser;
         OwnPtr<XSSAuditor> xssAuditor;
         OwnPtr<TokenPreloadScanner> preloadScanner;
-        OwnPtr<TextResourceDecoder> decoder;
     };
 
-    static void start(PassRefPtr<WeakReference<BackgroundHTMLParser> >, PassOwnPtr<Configuration>);
+    static void create(PassRefPtr<WeakReference<BackgroundHTMLParser> > reference, PassOwnPtr<Configuration> config)
+    {
+        new BackgroundHTMLParser(reference, config);
+        // Caller must free by calling stop().
+    }
 
     struct Checkpoint {
         WeakPtr<HTMLDocumentParser> parser;
@@ -65,9 +69,7 @@ public:
         String unparsedInput;
     };
 
-    void appendBytes(PassOwnPtr<Vector<char> >);
-    void setDecoder(PassOwnPtr<TextResourceDecoder>);
-    void flush();
+    void append(const String&);
     void resumeFrom(PassOwnPtr<Checkpoint>);
     void startedChunkWithCheckpoint(HTMLInputCheckpoint);
     void finish();
@@ -77,13 +79,10 @@ public:
 
 private:
     BackgroundHTMLParser(PassRefPtr<WeakReference<BackgroundHTMLParser> >, PassOwnPtr<Configuration>);
-    ~BackgroundHTMLParser();
 
-    void append(const String&);
     void markEndOfFile();
     void pumpTokenizer();
     void sendTokensToMainThread();
-    void updateDocument(const String& decodedData);
 
     WeakPtrFactory<BackgroundHTMLParser> m_weakFactory;
     BackgroundHTMLInputStream m_input;
@@ -100,8 +99,6 @@ private:
 
     OwnPtr<XSSAuditor> m_xssAuditor;
     OwnPtr<TokenPreloadScanner> m_preloadScanner;
-    OwnPtr<TextResourceDecoder> m_decoder;
-    DocumentEncodingData m_lastSeenEncodingData;
 };
 
 }