Allow multiple dart <script> tags in .sky files

sky/engine/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 36 matching lines @@
 class BackgroundHTMLParser;
 class CompactHTMLToken;
 class Document;
 class Element;
 class HTMLParserScheduler;
 class HTMLTreeBuilder;
 class ScriptSourceCode;
 
 class PumpSession;
 
-class HTMLDocumentParser :  public DocumentParser {
+class HTMLDocumentParser : public DocumentParser, public HTMLScriptRunnerHost {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassRefPtr<HTMLDocumentParser> create(Document& document, bool reportErrors)
     {
         return adoptRef(new HTMLDocumentParser(document, reportErrors));
     }
     virtual ~HTMLDocumentParser();
 
     void parse(mojo::ScopedDataPipeConsumerHandle,
                const base::Closure& completionCallback) override;
@@ skipping 10 matching lines @@
     void didReceiveParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk>);
 
     // From DocumentParser:
     void detach() override final;
     void prepareToStopParsing() override final;
     void stopParsing() override final;
     bool isWaitingForScripts() const override final;
     bool isExecutingScript() const override final;
     void resumeAfterWaitingForImports() override final;
 
+    // From HTMLScriptRunnerHost:
+    void scriptExecutionCompleted();
+
 private:
     HTMLDocumentParser(Document&, bool reportErrors);
 
     HTMLTreeBuilder* treeBuilder() const { return m_treeBuilder.get(); }
 
     bool hasInsertionPoint();
 
     void stopBackgroundParser();
     void processParsedChunkFromBackgroundParser(PassOwnPtr<ParsedChunk>);
     void pumpPendingChunks();
@@ skipping 11 matching lines @@
 
     bool isParsingFragment() const;
     bool isScheduledForResume() const;
     bool inPumpSession() const { return m_pumpSessionNestingLevel > 0; }
     bool shouldDelayEnd() const { return inPumpSession() || isWaitingForScripts() || isScheduledForResume() || isExecutingScript(); }
 
     OwnPtr<HTMLTreeBuilder> m_treeBuilder;
     OwnPtr<HTMLParserScheduler> m_parserScheduler;
     TextPosition m_textPosition;
 
-    HTMLScriptRunner m_scriptRunner;
+    OwnPtr<HTMLScriptRunner> m_scriptRunner;
 
     OwnPtr<ParsedChunk> m_lastChunkBeforeScript;
     Deque<OwnPtr<ParsedChunk> > m_pendingChunks;
     base::WeakPtrFactory<HTMLDocumentParser> m_weakFactory;
     base::WeakPtr<BackgroundHTMLParser> m_backgroundParser;
 
     base::Closure m_completionCallback;
 
     bool m_isFragment;
     bool m_endWasDelayed;
     bool m_haveBackgroundParser;
     unsigned m_pumpSessionNestingLevel;
 };
 
 }
 
 #endif  // SKY_ENGINE_CORE_HTML_PARSER_HTMLDOCUMENTPARSER_H_