Make onload async

Source/core/loader/FrameLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 413 matching lines @@
     for (Frame* child = m_frame->tree().firstChild(); child; child = child->tree().nextSibling()) {
         if (child->isLocalFrame() && !toLocalFrame(child)->loader().m_isComplete)
             return false;
     }
     return true;
 }
 
 bool FrameLoader::allAncestorsAreComplete() const
 {
     for (Frame* ancestor = m_frame; ancestor; ancestor = ancestor->tree().parent()) {
-        if (ancestor->isLocalFrame() && !toLocalFrame(ancestor)->document()->loadEventFinished())
+        if (ancestor->isLocalFrame() && toLocalFrame(ancestor)->document()->loadEventStillNeeded())
             return false;
     }
     return true;
 }
 
 void FrameLoader::checkCompleted()
 {
     RefPtr<LocalFrame> protect(m_frame);
     m_shouldCallCheckCompleted = false;
 
@@ skipping 1050 matching lines @@
     // FIXME: We need a way to propagate sandbox flags to out-of-process frames.
     Frame* parentFrame = m_frame->tree().parent();
     if (parentFrame && parentFrame->isLocalFrame())
         flags |= toLocalFrame(parentFrame)->document()->sandboxFlags();
     if (FrameOwner* frameOwner = m_frame->owner())
         flags |= frameOwner->sandboxFlags();
     return flags;
 }
 
 } // namespace blink