Have Frame::loader() return a reference

Source/core/frame/Frame.h

Index: Source/core/frame/Frame.h
diff --git a/Source/core/frame/Frame.h b/Source/core/frame/Frame.h
index c13ff1d76426fbd4c84cf48f2650627422303820..0937f95e287c1a3e1e88a4f141d197eb050f750e 100644
--- a/Source/core/frame/Frame.h
+++ b/Source/core/frame/Frame.h
@@ -97,13 +97,13 @@ namespace WebCore {
 
         Editor& editor() const;
         EventHandler& eventHandler() const;
-        FrameLoader* loader() 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(); }
+        FetchContext& fetchContext() const { return loader().fetchContext(); }
         ScriptController& script();
         SpellChecker& spellChecker() const;
 
@@ -202,9 +202,9 @@ namespace WebCore {
         m_loader.init();
     }
 
-    inline FrameLoader* Frame::loader() const
+    inline FrameLoader& Frame::loader() const
     {
-        return &m_loader;
+        return m_loader;
     }
 
     inline NavigationScheduler& Frame::navigationScheduler() const