Reviewed by Tim.

    Reviewed by Tim.

        <rdar://problem/5439953> REGRESSION: Cannot load feeds in widgets in Dashcode due to change in WebKit delegate methods

        * WebView/WebFrame.mm:
        (-[WebFrame _attachScriptDebugger]): Don't create the debugger object if the frame has not yet
        created its script interpreter, to avoid premature dispatch of windowScriptObjectAvailable/Cleared
        delegate methods. The script debugger will be created in any case when the window object does appear.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@25320 268f45cc-cd09-0410-ab3c-d52691b4dbfc