Move ownership of the TextResourceDecoder to DecodedDataDocumentParser

Source/core/dom/DecodedDataDocumentParser.h

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef DecodedDataDocumentParser_h
 #define DecodedDataDocumentParser_h
 
 #include "core/dom/DocumentParser.h"
+#include "wtf/RefPtr.h"
 
 namespace WebCore {
+class TextResourceDecoder;
 
 class DecodedDataDocumentParser : public DocumentParser {
 public:
     // Only used by the XMLDocumentParser to communicate back to
     // XMLHttpRequest if the responseXML was well formed.
     virtual bool wellFormed() const { return true; }
 
+    // The below functions are used by DocumentWriter (the loader).
+    virtual size_t appendBytes(const char* bytes, size_t length) OVERRIDE;
+    virtual size_t flush() OVERRIDE;
+    virtual bool needsDecoder() const OVERRIDE { return !m_decoder; }
+    virtual void setDecoder(PassRefPtr<TextResourceDecoder>) OVERRIDE;
+    virtual PassRefPtr<TextResourceDecoder> decoder() OVERRIDE;
+
 protected:
     explicit DecodedDataDocumentParser(Document*);
+    virtual ~DecodedDataDocumentParser();
 
 private:
     // append is used by DocumentWriter::replaceDocument.
     virtual void append(PassRefPtr<StringImpl>) = 0;
 
-    // appendBytes and flush are used by DocumentWriter (the loader).
-    virtual size_t appendBytes(const char* bytes, size_t length) OVERRIDE;
-    virtual size_t flush() OVERRIDE;
-    virtual bool needsDecoder() const OVERRIDE { return true; }
+    void updateDocumentEncoding();
+
+    RefPtr<TextResourceDecoder> m_decoder;
 };
 
 }
 
 #endif // DecodedDataDocumentParser_h