Store the Document's encoding on the Document

Source/core/rendering/RenderText.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 168 matching lines @@
     return false;
 }
 
 bool RenderText::isWordBreak() const
 {
     return false;
 }
 
 void RenderText::updateNeedsTranscoding()
 {
-    const WTF::TextEncoding* encoding = document()->decoder() ? &document()->decoder()->encoding() : 0;
+    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
     // we already did this for the parent of the text run.
     // We do have to schedule layouts, though, since a style change can force us to
     // need to relayout.
     if (diff == StyleDifferenceLayout) {
@@ skipping 1122 matching lines @@
         text.makeLower();
         break;
     }
 }
 
 void RenderText::setTextInternal(PassRefPtr<StringImpl> text)
 {
     ASSERT(text);
     m_text = text;
     if (m_needsTranscoding) {
-        const WTF::TextEncoding* encoding = document()->decoder() ? &document()->decoder()->encoding() : 0;
+        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());
 
         // We use the same characters here as for list markers.
         // See the listMarkerText function in RenderListMarker.cpp.
         switch (style()->textSecurity()) {
@@ skipping 514 matching lines @@
 
     SecureTextTimer* secureTextTimer = gSecureTextTimers->get(this);
     if (!secureTextTimer) {
         secureTextTimer = new SecureTextTimer(this);
         gSecureTextTimers->add(this, secureTextTimer);
     }
     secureTextTimer->restartWithNewText(lastTypedCharacterOffset);
 }
 
 } // namespace WebCore