Redirect HTML resource bytes directly to parser thread (Blink side CL)

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 15 matching lines @@
 #ifndef BackgroundHTMLParser_h
 #define BackgroundHTMLParser_h
 
 #include "core/html/parser/BackgroundHTMLInputStream.h"
 #include "core/html/parser/CompactHTMLToken.h"
 #include "core/html/parser/HTMLParserOptions.h"
 #include "core/html/parser/HTMLPreloadScanner.h"
 #include "core/html/parser/HTMLSourceTracker.h"
 #include "core/html/parser/HTMLTreeBuilderSimulator.h"
 #include "core/html/parser/XSSAuditorDelegate.h"
+#include "public/platform/WebThreadedResourceProvider.h"
 #include "wtf/PassOwnPtr.h"
+#include "wtf/Vector.h"
 #include "wtf/WeakPtr.h"
 
 namespace WebCore {
 
 class HTMLDocumentParser;
 class SharedBuffer;
 class XSSAuditor;
 
-class BackgroundHTMLParser {
+class BackgroundHTMLParser : public blink::WebThreadedResourceBackgroundClient {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     struct Configuration {
         HTMLParserOptions options;
         WeakPtr<HTMLDocumentParser> parser;
         OwnPtr<XSSAuditor> xssAuditor;
         OwnPtr<TokenPreloadScanner> preloadScanner;
         OwnPtr<TextResourceDecoder> decoder;
+        OwnPtr<blink::WebThreadedResourceProvider> resourceProvider;
     };
 
     static void start(PassRefPtr<WeakReference<BackgroundHTMLParser> >, PassOwnPtr<Configuration>);
 
     struct Checkpoint {
         WeakPtr<HTMLDocumentParser> parser;
         OwnPtr<HTMLToken> token;
         OwnPtr<HTMLTokenizer> tokenizer;
         HTMLTreeBuilderSimulator::State treeBuilderState;
         HTMLInputCheckpoint inputCheckpoint;
         TokenPreloadScannerCheckpoint preloadScannerCheckpoint;
         String unparsedInput;
     };
 
+    // From blink::WebThreadedResourceBackgroundClient
+    virtual void didReceivedData(const char* data, size_t length) OVERRIDE FINAL;
+
     void appendBytes(PassOwnPtr<Vector<char> >);
     void setDecoder(PassOwnPtr<TextResourceDecoder>);
     void flush();
     void resumeFrom(PassOwnPtr<Checkpoint>);
     void startedChunkWithCheckpoint(HTMLInputCheckpoint);
     void finish();
     void stop();
+    void didSwitchedToBackgroundClient();
 
     void forcePlaintextForTextDocument();
 
 private:
     BackgroundHTMLParser(PassRefPtr<WeakReference<BackgroundHTMLParser> >, PassOwnPtr<Configuration>);
-    ~BackgroundHTMLParser();
+    virtual ~BackgroundHTMLParser();
 
     void append(const String&);
     void markEndOfFile();
     void pumpTokenizer();
     void sendTokensToMainThread();
     void updateDocument(const String& decodedData);
+    void flushQueuedData();
 
     WeakPtrFactory<BackgroundHTMLParser> m_weakFactory;
     BackgroundHTMLInputStream m_input;
     HTMLSourceTracker m_sourceTracker;
     OwnPtr<HTMLToken> m_token;
     OwnPtr<HTMLTokenizer> m_tokenizer;
     HTMLTreeBuilderSimulator m_treeBuilderSimulator;
     HTMLParserOptions m_options;
     WeakPtr<HTMLDocumentParser> m_parser;
 
     OwnPtr<CompactHTMLTokenStream> m_pendingTokens;
     PreloadRequestStream m_pendingPreloads;
     XSSInfoStream m_pendingXSSInfos;
 
     OwnPtr<XSSAuditor> m_xssAuditor;
     OwnPtr<TokenPreloadScanner> m_preloadScanner;
     OwnPtr<TextResourceDecoder> m_decoder;
+    OwnPtr<blink::WebThreadedResourceProvider> m_resourceProvider;
     DocumentEncodingData m_lastSeenEncodingData;
+    bool m_receivingDataOnlyFromResourceProvider;
+    RefPtr<SharedBuffer> m_queuedData;
 };
 
 }
 
 #endif