Implement a part of ProcessingInstruction by using PrivateScript

Source/core/dom/StyleSheetCandidate.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 27 matching lines @@
 
 namespace blink {
 
 using namespace HTMLNames;
 
 AtomicString StyleSheetCandidate::title() const
 {
     return isElement() ? toElement(node()).fastGetAttribute(titleAttr) : nullAtom;
 }
 
-bool StyleSheetCandidate::isXSL() const
-{
-    return !node().document().isHTMLDocument() && m_type == Pi && toProcessingInstruction(node()).isXSL();
-}
-
 bool StyleSheetCandidate::isImport() const
 {
     return m_type == HTMLLink && toHTMLLinkElement(node()).isImport();
 }
 
 Document* StyleSheetCandidate::importedDocument() const
 {
     ASSERT(isImport());
     return toHTMLLinkElement(node()).import();
 }
@@ skipping 68 matching lines @@
         return toSVGStyleElement(node()).sheet();
     case Pi:
         return toProcessingInstruction(node()).sheet();
     }
 
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 }