Simplify parsing/loading state, attempt #2

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

 /*
  * 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 92 matching lines @@
         TokenPreloadScannerCheckpoint preloadScannerCheckpoint;
         bool startingScript;
     };
     void notifyPendingParsedChunks();
     void didReceiveEncodingDataFromBackgroundParser(const DocumentEncodingData&);
 
     void appendBytes(const char* bytes, size_t length) override;
     void flush() final;
     void setDecoder(PassOwnPtr<TextResourceDecoder>) final;
 
-    UseCounter* useCounter() { return UseCounter::getFrom(contextForParsingSession()); }
-
 protected:
     void insert(const SegmentedString&) final;
     void append(const String&) override;
     void finish() final;
 
     HTMLDocumentParser(HTMLDocument&, bool reportErrors, ParserSynchronizationPolicy);
     HTMLDocumentParser(DocumentFragment*, Element* contextElement, ParserContentPolicy);
 
     HTMLTreeBuilder* treeBuilder() const { return m_treeBuilder.get(); }
 
     void forcePlaintextForTextDocument();
 
 private:
     static PassRefPtrWillBeRawPtr<HTMLDocumentParser> create(DocumentFragment* fragment, Element* contextElement, ParserContentPolicy parserContentPolicy)
     {
         return adoptRefWillBeNoop(new HTMLDocumentParser(fragment, contextElement, parserContentPolicy));
     }
 
     // DocumentParser
     void detach() final;
     bool hasInsertionPoint() final;
-    bool processingData() const final;
     void prepareToStopParsing() final;
     void stopParsing() final;
     bool isWaitingForScripts() const final;
     bool isExecutingScript() const final;
     void executeScriptsWaitingForResources() final;
 
     // HTMLScriptRunnerHost
     void notifyScriptLoaded(Resource*) final;
     HTMLInputStream& inputStream() final { return m_input; }
     bool hasPreloadScanner() const final { return m_preloadScanner.get() && !shouldUseThreading(); }
     void appendCurrentInputStreamToPreloadScannerAndScan() final;
 
     void startBackgroundParser();
     void stopBackgroundParser();
     void validateSpeculations(PassOwnPtr<ParsedChunk> lastChunk);
     void discardSpeculationsAndResumeFrom(PassOwnPtr<ParsedChunk> lastChunk, PassOwnPtr<HTMLToken>, PassOwnPtr<HTMLTokenizer>);
     size_t processParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk>);
     void pumpPendingSpeculations();
 
-    Document* contextForParsingSession();
-
     bool canTakeNextToken();
     void pumpTokenizer();
     void pumpTokenizerIfPossible();
     void constructTreeFromHTMLToken();
     void constructTreeFromCompactHTMLToken(const CompactHTMLToken&);
 
     void runScriptsForPausedTreeBuilder();
     void resumeParsingAfterScriptExecution();
 
     void attemptToEnd();
@@ skipping 41 matching lines @@
     bool m_haveBackgroundParser;
     bool m_tasksWereSuspended;
     unsigned m_pumpSessionNestingLevel;
     unsigned m_pumpSpeculationsSessionNestingLevel;
     bool m_isParsingAtLineNumber;
 };
 
 } // namespace blink
 
 #endif