Teach ContentSecurityPolicy about WebURLRequest::RequestContext.

Source/core/xml/XSLTProcessorLibxslt.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 23 matching lines @@
 #include "core/frame/LocalFrame.h"
 #include "core/xml/XSLStyleSheet.h"
 #include "core/xml/XSLTExtensions.h"
 #include "core/xml/XSLTUnicodeSort.h"
 #include "core/xml/parser/XMLDocumentParser.h"
 #include "platform/SharedBuffer.h"
 #include "platform/network/ResourceError.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/weborigin/SecurityOrigin.h"
+#include "public/platform/WebURLRequest.h"
 #include "wtf/Assertions.h"
 #include "wtf/Vector.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/StringBuffer.h"
 #include "wtf/unicode/UTF8.h"
 #include <libxslt/imports.h>
 #include <libxslt/security.h>
 #include <libxslt/variables.h>
 #include <libxslt/xsltutils.h>
 
@@ skipping 40 matching lines @@
 
     switch (type) {
     case XSLT_LOAD_DOCUMENT: {
         xsltTransformContextPtr context = (xsltTransformContextPtr)ctxt;
         xmlChar* base = xmlNodeGetBase(context->document->doc, context->node);
         KURL url(KURL(ParsedURLString, reinterpret_cast<const char*>(base)), reinterpret_cast<const char*>(uri));
         xmlFree(base);
 
         ResourceLoaderOptions fetchOptions(ResourceFetcher::defaultResourceOptions());
         FetchRequest request(ResourceRequest(url), FetchInitiatorTypeNames::xml, fetchOptions);
+        request.mutableResourceRequest().setRequestContext(blink::WebURLRequest::RequestContextXSLT);
         request.setOriginRestriction(FetchRequest::RestrictToSameOrigin);
         ResourcePtr<Resource> resource = globalResourceFetcher->fetchSynchronously(request);
         if (!resource || !globalProcessor)
             return 0;
 
         FrameConsole* console = 0;
         LocalFrame* frame = globalProcessor->xslStylesheet()->ownerDocument()->frame();
         if (frame)
             console = &frame->console();
         xmlSetStructuredErrorFunc(console, XSLTProcessor::parseErrorFunc);
@@ skipping 229 matching lines @@
 
     sheet->method = origMethod;
     setXSLTLoadCallBack(0, 0, 0);
     xsltFreeStylesheet(sheet);
     m_stylesheet = nullptr;
 
     return success;
 }
 
 } // namespace blink