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 b8c2e23cead79530acddd3aa95dda69df9b9e4e0..d340f6e6b3e4807bc1af6cba4fb5b07abb18bcd6 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -151,7 +151,6 @@ class StyleSheetContents;
 class StyleSheetList;
 class Text;
 class TextAutosizer;
-class TextResourceDecoder;
 class Touch;
 class TouchList;
 class TransformSource;
@@ -887,11 +886,19 @@ public:
 
     void documentWillBecomeInactive();
 
-    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; }
 
     String displayStringModifiedByEncoding(const String&) const;
     PassRefPtr<StringImpl> displayStringModifiedByEncoding(PassRefPtr<StringImpl>) const;
@@ -1279,8 +1286,7 @@ private:
 
     String m_contentLanguage;
 
-    RefPtr<TextResourceDecoder> m_decoder;
-    WTF::TextEncoding m_encoding;
+    DocumentEncodingData m_encodingData;
 
     InheritedBool m_designMode;