Reviewed by Dave Hyatt.

    Reviewed by Dave Hyatt.

        https://bugs.webkit.org/show_bug.cgi?id=31660
        REGRESSION (r49394): Image load event fires before the document fragment is attached.

        Test: fast/images/image-load-event-in-fragment.html

        We cannot fire load events immediately after parsing a fragment - an element inserted via
        innerHTML or equivalent should be reachable via getElementById() by the time its load event
        fires.

        * dom/Document.cpp: (WebCore::Document::implicitClose): Call dispatchPendingBeforeLoadEvents()
        and dispatchPendingLoadEvents() individually. I'm not sure why these calls are here, just
        preserving existing behavior.

        * dom/XMLTokenizer.cpp: (WebCore::XMLTokenizer::write):
        * html/HTMLTokenizer.cpp: (WebCore::HTMLTokenizer::write):
        Load events for elements that have just been parsed cannot be dispatched yet, we should give
        the elements a chance to be inserted into a document first. There is no compatibility baggage
        for beforeload, so it seems OK to dispatch it right away.

        * loader/ImageLoader.cpp:
        (WebCore::ImageLoader::dispatchPendingBeforeLoadEvents):
        (WebCore::ImageLoader::dispatchPendingLoadEvents):
        * loader/ImageLoader.h:
        Separated dispatchPendingEvents() into individual functions for each event kind.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@52116 268f45cc-cd09-0410-ab3c-d52691b4dbfc