http://bugzilla.opendarwin.org/show_bug.cgi?id=9787
        fast/frames tests failing (bad pointer to owner element) under MallocScribble
        
        * html/HTMLFrameElement.cpp:
        (WebCore::HTMLFrameElement::close):
        Disconnect the owner element of our frame.
        
        * html/HTMLIFrameElement.cpp:
        (WebCore::HTMLIFrameElement::attach):
        Don't call setFrame here.
        
        * html/HTMLPlugInElement.cpp:
        (WebCore::HTMLPlugInElement::detach):
        Disconnect the owner element of our frame.

        * html/HTMLPlugInElement.h:
        (WebCore::HTMLPlugInElement::setFrameName):        
        New function.
        
        * page/Frame.cpp:
        (WebCore::Frame::Frame):
        Don't call setFrame.
        
        (WebCore::Frame::~Frame):
        Null out the owner element.
        
        (WebCore::Frame::requestObject):
        When an object creates a child frame, assign it a name so it can be
        accessed from HTMLPlugInElement.
        
        * rendering/RenderPart.cpp:
        (WebCore::RenderPart::RenderPart):
        (WebCore::RenderPart::~RenderPart):
        * rendering/RenderPart.h:
        Get rid of setFrame.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@15240 268f45cc-cd09-0410-ab3c-d52691b4dbfc