Script streaming: stream async scripts too.

Source/core/dom/ScriptLoader.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * 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
@@ skipping 235 matching lines @@
         m_willBeParserExecuted = true;
         m_readyToBeParserExecuted = true;
     } else if (client->hasSourceAttribute() && !client->asyncAttributeValue() && !m_forceAsync) {
         m_willExecuteInOrder = true;
         m_pendingScript = PendingScript(m_element, m_resource.get());
         contextDocument->scriptRunner()->queueScriptForExecution(this, ScriptRunner::IN_ORDER_EXECUTION);
         // Note that watchForLoad can immediately call notifyFinished.
         m_pendingScript.watchForLoad(this);
     } else if (client->hasSourceAttribute()) {
         m_pendingScript = PendingScript(m_element, m_resource.get());
+        LocalFrame* frame = m_element->document().frame();
+        if (frame) {
+            ScriptStreamer::startStreaming(m_pendingScript, frame->settings(), ScriptState::forMainWorld(frame), PendingScript::Async);
+        }
         contextDocument->scriptRunner()->queueScriptForExecution(this, ScriptRunner::ASYNC_EXECUTION);
         // Note that watchForLoad can immediately call notifyFinished.
         m_pendingScript.watchForLoad(this);
     } else {
         // Reset line numbering for nested writes.
         TextPosition position = elementDocument.isInDocumentWrite() ? TextPosition() : scriptStartPosition;
         KURL scriptURL = (!elementDocument.isInDocumentWrite() && m_parserInserted) ? elementDocument.url() : KURL();
         executeScript(ScriptSourceCode(scriptContent(), scriptURL, position));
     }
 
@@ skipping 190 matching lines @@
     if (isHTMLScriptLoader(element))
         return toHTMLScriptElement(element)->loader();
 
     if (isSVGScriptLoader(element))
         return toSVGScriptElement(element)->loader();
 
     return 0;
 }
 
 } // namespace blink