Apply meta tag referrer policy for preloaded requests

Source/core/html/parser/HTMLDocumentParser.cpp

 /*
  * Copyright (C) 2010 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 334 matching lines @@
     return true;
 }
 
 void HTMLDocumentParser::didReceiveParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk> chunk)
 {
     TRACE_EVENT0("blink", "HTMLDocumentParser::didReceiveParsedChunkFromBackgroundParser");
 
     if (!isParsing())
         return;
 
+    if (!chunk->preloadedReferrerPolicy.isEmpty())
+        document()->processReferrerPolicy(chunk->preloadedReferrerPolicy);
+
     // ApplicationCache needs to be initialized before issuing preloads.
     // We suspend preload until HTMLHTMLElement is inserted and
     // ApplicationCache is initialized.
     if (!document()->documentElement()) {
         for (auto& request : chunk->preloads)
             m_queuedPreloads.append(request.release());
     } else {
         // We can safely assume that there are no queued preloads request after
         // the document element is available, as we empty the queue immediately
         // after the document element is created in pumpPendingSpeculations().
@@ skipping 749 matching lines @@
 void HTMLDocumentParser::setDecoder(PassOwnPtr<TextResourceDecoder> decoder)
 {
     ASSERT(decoder);
     DecodedDataDocumentParser::setDecoder(decoder);
 
     if (m_haveBackgroundParser)
         HTMLParserThread::shared()->postTask(threadSafeBind(&BackgroundHTMLParser::setDecoder, AllowCrossThreadAccess(m_backgroundParser), takeDecoder()));
 }
 
 }