Move ownership of the TextResourceDecoder to DecodedDataDocumentParser

Source/core/rendering/RenderText.cpp

Index: Source/core/rendering/RenderText.cpp
diff --git a/Source/core/rendering/RenderText.cpp b/Source/core/rendering/RenderText.cpp
index 8fcee94eb5b0906b30294a4480352e5e67b099f0..b6473b6491904623c4e1a4edfe7bd96106ed3e48 100644
--- a/Source/core/rendering/RenderText.cpp
+++ b/Source/core/rendering/RenderText.cpp
@@ -184,6 +184,12 @@ bool RenderText::isWordBreak() const
     return false;
 }
 
+void RenderText::updateNeedsTranscoding()
+{
+    const WTF::TextEncoding* encoding = document()->encoding().isValid() ? &document()->encoding() : 0;
+    m_needsTranscoding = fontTranscoder().needsTranscoding(style()->font().fontDescription(), encoding);
+}
+
 void RenderText::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
 {
     // There is no need to ever schedule repaints from a style change of a text run, since
@@ -1328,6 +1334,11 @@ void RenderText::setTextInternal(PassRefPtr<StringImpl> text)
 {
     ASSERT(text);
     m_text = text;
+    if (m_needsTranscoding) {
+        const WTF::TextEncoding* encoding = document()->encoding().isValid() ? &document()->encoding() : 0;
+        fontTranscoder().convert(m_text, style()->font().fontDescription(), encoding);
+    }
+    ASSERT(m_text);
 
     if (style()) {
         applyTextTransform(style(), m_text, previousCharacter());