Otherwise it can't be opened as a 'last opened panel' at the initial load.
Created attachment 42111 [details] [PATCH]
Committing to http://svn.webkit.org/repository/webkit/trunk ... M WebCore/ChangeLog M WebCore/inspector/InspectorController.cpp M WebCore/inspector/InspectorController.h Committed r50286
Created attachment 42212 [details] [PATCH] There is more to fix in this bug.
Committing to http://svn.webkit.org/repository/webkit/trunk ... M WebCore/ChangeLog M WebCore/inspector/InspectorFrontend.cpp M WebCore/inspector/front-end/inspector.js Committed r50337