CSP: Move policy parsing out of Document.

Source/core/xml/XSLTProcessor.cpp

 /*
  * This file is part of the XSL implementation.
  *
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple, Inc. All rights reserved.
  * Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@webkit.org>
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
@@ skipping 68 matching lines @@
 
         // Before parsing, we need to save & detach the old document and get the new document
         // in place. We have to do this only if we're rendering the result document.
         if (FrameView* view = frame->view())
             view->clear();
 
         if (oldDocument) {
             result->setTransformSourceDocument(oldDocument.get());
             result->updateSecurityOrigin(oldDocument->securityOrigin());
             result->setCookieURL(oldDocument->cookieURL());
-            result->contentSecurityPolicy()->copyStateFrom(oldDocument->contentSecurityPolicy());
+            result->initContentSecurityPolicy();
         }
     } else {
         result = LocalDOMWindow::createDocument(sourceMIMEType, init, forceXHTML);
     }
 
     DocumentEncodingData data;
     data.setEncoding(sourceEncoding.isEmpty() ? UTF8Encoding() : WTF::TextEncoding(sourceEncoding));
     result->setEncodingData(data);
     result->setContent(documentSource);
 
@@ skipping 59 matching lines @@
 }
 
 void XSLTProcessor::trace(Visitor* visitor)
 {
     visitor->trace(m_stylesheet);
     visitor->trace(m_stylesheetRootNode);
     visitor->trace(m_document);
 }
 
 } // namespace blink