Script-based imports should basically work

sky/engine/core/dom/DocumentParser.h

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2005, 2006 Apple Computer, Inc.
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef DocumentParser_h
 #define DocumentParser_h
 
+#include "base/callback_forward.h"
 #include "mojo/public/cpp/system/core.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/TextPosition.h"
 
 namespace blink {
 
 class Document;
 class SegmentedString;
 class HTMLDocumentParser;
 class TextResourceDecoder;
 
 class DocumentParser : public RefCounted<DocumentParser> {
 public:
     virtual ~DocumentParser();
 
-    virtual void parse(mojo::ScopedDataPipeConsumerHandle) = 0;
+    virtual void parse(mojo::ScopedDataPipeConsumerHandle,
+                       const base::Closure& completionCallback) = 0;
 
     virtual TextPosition textPosition() const = 0;
     virtual void executeScriptsWaitingForResources() = 0;
     virtual bool isWaitingForScripts() const = 0;
     virtual bool isExecutingScript() const = 0;
 
     bool isParsing() const { return m_state == ParsingState; }
 
     // stopParsing() is used when a load is canceled/stopped.
     // stopParsing() is currently different from detach(), but shouldn't be.
@@ skipping 31 matching lines @@
     ParserState m_state;
 
     // Every DocumentParser needs a pointer back to the document.
     // m_document will be 0 after the parser is stopped.
     Document* m_document;
 };
 
 } // namespace blink
 
 #endif // DocumentParser_h