- fixed <rdar://problem/5455457> REGRESSION (9A527-9A535): Colloquy crash on launch in WebCoreScriptDebugger initWithDelegate (with announce.js plug-in installed)

        * page/mac/FrameMac.mm:
        (WebCore::Frame::windowScriptObject): Ensure that -[WebView
        windowScriptObject] and -[WebFrame windowObject] return null until
        the windowScriptObjectAvailable: delegate method is sent.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@25383 268f45cc-cd09-0410-ab3c-d52691b4dbfc