Apply meta tag referrer policy for preloaded requests

Source/core/html/parser/BackgroundHTMLParser.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:
  * 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 221 matching lines @@
         {
             TextPosition position = TextPosition(m_input.current().currentLine(), m_input.current().currentColumn());
 
             if (OwnPtr<XSSInfo> xssInfo = m_xssAuditor->filterToken(FilterTokenRequest(*m_token, m_sourceTracker, m_tokenizer->shouldAllowCDATA()))) {
                 xssInfo->m_textPosition = position;
                 m_pendingXSSInfos.append(xssInfo.release());
             }
 
             CompactHTMLToken token(m_token.get(), TextPosition(m_input.current().currentLine(), m_input.current().currentColumn()));
 
-            m_preloadScanner->scan(token, m_input.current(), m_pendingPreloads);
+            m_preloadScanner->scan(token, m_input.current(), m_pendingPreloads, &m_preloadedReferrerPolicy);
             simulatedToken = m_treeBuilderSimulator.simulate(token, m_tokenizer.get());
 
             // Break chunks before a script tag is inserted and flag the chunk as starting a script
             // so the main parser can decide if it should yield before processing the chunk.
             if (simulatedToken == HTMLTreeBuilderSimulator::ScriptStart) {
                 sendTokensToMainThread();
                 m_startingScript = true;
             }
 
             m_pendingTokens->append(token);
@@ skipping 23 matching lines @@
 
     OwnPtr<HTMLDocumentParser::ParsedChunk> chunk = adoptPtr(new HTMLDocumentParser::ParsedChunk);
     chunk->preloads.swap(m_pendingPreloads);
     chunk->xssInfos.swap(m_pendingXSSInfos);
     chunk->tokenizerState = m_tokenizer->state();
     chunk->treeBuilderState = m_treeBuilderSimulator.state();
     chunk->inputCheckpoint = m_input.createCheckpoint(m_pendingTokens->size());
     chunk->preloadScannerCheckpoint = m_preloadScanner->createCheckpoint();
     chunk->tokens = m_pendingTokens.release();
     chunk->startingScript = m_startingScript;
+    chunk->preloadedReferrerPolicy = m_preloadedReferrerPolicy;
     m_startingScript = false;
 
     m_scheduler->postLoadingTask(
         FROM_HERE,
         new Task(threadSafeBind(&HTMLDocumentParser::didReceiveParsedChunkFromBackgroundParser, AllowCrossThreadAccess(m_parser), chunk.release())));
 
     m_pendingTokens = adoptPtr(new CompactHTMLTokenStream);
 }
 
 }