Script-based imports should basically work

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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef HTMLDocumentParser_h
 #define HTMLDocumentParser_h
 
+#include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "core/dom/DocumentParser.h"
 #include "core/fetch/ResourceClient.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/parser/CompactHTMLToken.h"
 #include "core/html/parser/HTMLInputStream.h"
 #include "core/html/parser/HTMLScriptRunner.h"
 #include "core/html/parser/HTMLToken.h"
 #include "core/html/parser/HTMLTokenizer.h"
 #include "core/html/parser/TextResourceDecoder.h"
@@ skipping 19 matching lines @@
 
 class HTMLDocumentParser :  public DocumentParser {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassRefPtr<HTMLDocumentParser> create(HTMLDocument& document, bool reportErrors)
     {
         return adoptRef(new HTMLDocumentParser(document, reportErrors));
     }
     virtual ~HTMLDocumentParser();
 
-    void parse(mojo::ScopedDataPipeConsumerHandle) override;
+    void parse(mojo::ScopedDataPipeConsumerHandle,
+               const base::Closure& completionCallback) override;
 
     // Exposed for HTMLParserScheduler
     void resumeParsingAfterYield();
 
     TextPosition textPosition() const;
     OrdinalNumber lineNumber() const;
 
     struct ParsedChunk {
         OwnPtr<CompactHTMLTokenStream> tokens;
     };
@@ skipping 43 matching lines @@
     OwnPtr<HTMLParserScheduler> m_parserScheduler;
     TextPosition m_textPosition;
 
     HTMLScriptRunner m_scriptRunner;
 
     OwnPtr<ParsedChunk> m_lastChunkBeforeScript;
     Deque<OwnPtr<ParsedChunk> > m_speculations;
     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