Have Frame::script() return a reference

Source/core/frame/Frame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
@@ skipping 86 matching lines @@
 
         Editor& editor() const;
         EventHandler* eventHandler() const;
         FrameLoader* loader() const;
         NavigationScheduler* navigationScheduler() const;
         FrameSelection& selection() const;
         FrameTree& tree() const;
         AnimationController& animation() const;
         InputMethodController& inputMethodController() const;
         FetchContext& fetchContext() const { return loader()->fetchContext(); }
-        ScriptController* script();
+        ScriptController& script();
         SpellChecker& spellChecker() const;
 
         RenderView* contentRenderer() const; // Root of the render tree for the document contained in this frame.
         RenderPart* ownerRenderer() const; // Renderer for the element that contains this frame.
 
         void dispatchVisibilityStateChangeEvent();
 
     // ======== All public functions below this point are candidates to move out of Frame into another class. ========
 
         bool inScope(TreeScope*) const;
@@ skipping 92 matching lines @@
     inline NavigationScheduler* Frame::navigationScheduler() const
     {
         return &m_navigationScheduler;
     }
 
     inline FrameView* Frame::view() const
     {
         return m_view.get();
     }
 
-    inline ScriptController* Frame::script()
+    inline ScriptController& Frame::script()
     {
-        return m_script.get();
+        return *m_script;
     }
 
     inline DOMWindow* Frame::domWindow() const
     {
         return m_domWindow.get();
     }
 
     inline FrameSelection& Frame::selection() const
     {
         return *m_selection;
@@ skipping 45 matching lines @@
     }
 
     inline EventHandler* Frame::eventHandler() const
     {
         return m_eventHandler.get();
     }
 
 } // namespace WebCore
 
 #endif // Frame_h