Move ownership of the TextResourceDecoder to DecodedDataDocumentParser

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index 06d421bd3c1035f3608a0d6c6ed6a5271e38257a..4b9fcf44203f7c0e75064706de61bac6f1d3786e 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -152,7 +152,6 @@ class StyleSheetContents;
 class StyleSheetList;
 class Text;
 class TextAutosizer;
-class TextResourceDecoder;
 class Touch;
 class TouchList;
 class TransformSource;
@@ -840,11 +839,19 @@ public:
 
     void finishedParsing();
 
-    void setDecoder(PassRefPtr<TextResourceDecoder>);
-    TextResourceDecoder* decoder() const { return m_decoder.get(); }
+    struct DocumentEncodingData {
+        DocumentEncodingData();
 
-    void setEncoding(const WTF::TextEncoding&);
-    const WTF::TextEncoding& encoding() const { return m_encoding; }
+        WTF::TextEncoding encoding;
+        bool wasDetectedHeuristically;
+        bool sawDecodingError;
+    };
+
+    void setEncoding(DocumentEncodingData);
+    const WTF::TextEncoding& encoding() const { return m_encodingData.encoding; }
+
+    bool encodingWasDetectedHeuristically() const { return m_encodingData.wasDetectedHeuristically; }
+    bool sawDecodingError() const { return m_encodingData.sawDecodingError; }
 
     void setAnnotatedRegionsDirty(bool f) { m_annotatedRegionsDirty = f; }
     bool annotatedRegionsDirty() const { return m_annotatedRegionsDirty; }
@@ -1229,8 +1236,7 @@ private:
 
     String m_contentLanguage;
 
-    RefPtr<TextResourceDecoder> m_decoder;
-    WTF::TextEncoding m_encoding;
+    DocumentEncodingData m_encodingData;
 
     InheritedBool m_designMode;