Add support for media attribute on link

third_party/WebKit/Source/core/html/parser/BackgroundHTMLParser.h

 /*
  * 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 95 matching lines @@
     OwnPtr<HTMLToken> m_token;
     OwnPtr<HTMLTokenizer> m_tokenizer;
     HTMLTreeBuilderSimulator m_treeBuilderSimulator;
     HTMLParserOptions m_options;
     const size_t m_outstandingTokenLimit;
     WeakPtr<HTMLDocumentParser> m_parser;
 
     OwnPtr<CompactHTMLTokenStream> m_pendingTokens;
     const size_t m_pendingTokenLimit;
     PreloadRequestStream m_pendingPreloads;
+    ViewportDescriptionWrapper m_viewportDescription;
     XSSInfoStream m_pendingXSSInfos;
 
     OwnPtr<XSSAuditor> m_xssAuditor;
     OwnPtr<TokenPreloadScanner> m_preloadScanner;
     OwnPtr<TextResourceDecoder> m_decoder;
     DocumentEncodingData m_lastSeenEncodingData;
     OwnPtr<WebTaskRunner> m_loadingTaskRunner;
     RefPtr<ParsedChunkQueue> m_parsedChunkQueue;
 
     bool m_startingScript;
 };
 
 } // namespace blink
 
 #endif