Have Frame::navigationScheduler() 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 80 matching lines @@
         HTMLFrameOwnerElement* ownerElement() const;
 
         void setDOMWindow(PassRefPtr<DOMWindow>);
         DOMWindow* domWindow() const;
         Document* document() const;
         FrameView* view() const;
 
         Editor& editor() const;
         EventHandler* eventHandler() const;
         FrameLoader* loader() const;
-        NavigationScheduler* navigationScheduler() const;
+        NavigationScheduler& navigationScheduler() const;
         FrameSelection& selection() const;
         FrameTree& tree() const;
         AnimationController& animation() const;
         InputMethodController& inputMethodController() const;
         FetchContext& fetchContext() const { return loader()->fetchContext(); }
         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.
@@ skipping 88 matching lines @@
     inline void Frame::init()
     {
         m_loader.init();
     }
 
     inline FrameLoader* Frame::loader() const
     {
         return &m_loader;
     }
 
-    inline NavigationScheduler* Frame::navigationScheduler() const
+    inline NavigationScheduler& Frame::navigationScheduler() const
     {
-        return &m_navigationScheduler;
+        return m_navigationScheduler;
     }
 
     inline FrameView* Frame::view() const
     {
         return m_view.get();
     }
 
     inline ScriptController* Frame::script()
     {
         return m_script.get();
@@ skipping 55 matching lines @@
     }
 
     inline EventHandler* Frame::eventHandler() const
     {
         return m_eventHandler.get();
     }
 
 } // namespace WebCore
 
 #endif // Frame_h