Process decoded bytes when in stopped (but not detached) state

Source/core/xml/parser/XMLDocumentParser.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Holger Hans Peter Freyther
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1143 matching lines @@
 
     pi->finishParsingChildren();
 
     if (pi->isCSS())
         m_sawCSS = true;
 
     if (!RuntimeEnabledFeatures::xsltEnabled())
         return;
 
     m_sawXSLTransform = !m_sawFirstElement && pi->isXSL();
-    if (m_sawXSLTransform && !document()->transformSourceDocument())
+    if (m_sawXSLTransform && !document()->transformSourceDocument()) {
+        // This behavior is very tricky. We call stopParsing() here because we want to stop processing the document
+        // until we're ready to apply the transform, but we actually still want to be fed decoded string pieces to
+        // accumulate in m_originalSourceForTransform. So, we call stopParsing() here and
+        // check isStopped() in element callbacks.
+        // FIXME: This contradicts the contract of DocumentParser.
         stopParsing();
+    }
 }
 
 void XMLDocumentParser::cdataBlock(const String& text)
 {
     if (isStopped())
         return;
 
     if (m_parserPaused) {
         m_pendingCallbacks.append(adoptPtr(new PendingCDATABlockCallback(text)));
         return;
@@ skipping 453 matching lines @@
     sax.initialized = XML_SAX2_MAGIC;
     RefPtr<XMLParserContext> parser = XMLParserContext::createStringParser(&sax, &state);
     String parseString = "<?xml version=\"1.0\"?><attrs " + string + " />";
     parseChunk(parser->context(), parseString);
     finishParsing(parser->context());
     attrsOK = state.gotAttributes;
     return state.attributes;
 }
 
 } // namespace WebCore