Remove some pass-thrus on RootWindow API in favor of exposing the RootWindowHost again.

ui/aura/root_window_host_ozone.h

Index: ui/aura/root_window_host_ozone.h
diff --git a/ui/aura/root_window_host_ozone.h b/ui/aura/root_window_host_ozone.h
index fd3727d7e440d60aa9ba4a7ee5cce828215042b9..91cfbbacf047c2512757f56b8823a9253d7d3040 100644
--- a/ui/aura/root_window_host_ozone.h
+++ b/ui/aura/root_window_host_ozone.h
@@ -27,7 +27,6 @@ class RootWindowHostOzone : public RootWindowHost,
   virtual bool Dispatch(const base::NativeEvent& event) OVERRIDE;
 
   // RootWindowHost Overrides.
-  virtual void SetDelegate(RootWindowHostDelegate* delegate) OVERRIDE;
   virtual RootWindow* GetRootWindow() OVERRIDE;
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
   virtual void Show() OVERRIDE;
@@ -46,12 +45,10 @@ class RootWindowHostOzone : public RootWindowHost,
   virtual void UnConfineCursor() OVERRIDE;
   virtual void OnCursorVisibilityChanged(bool show) OVERRIDE;
   virtual void MoveCursorTo(const gfx::Point& location) OVERRIDE;
-  virtual void SetFocusWhenShown(bool focus_when_shown) OVERRIDE;
   virtual void PostNativeEvent(const base::NativeEvent& event) OVERRIDE;
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
   virtual void PrepareForShutdown() OVERRIDE;
 
-  RootWindowHostDelegate* delegate_;
   gfx::AcceleratedWidget widget_;
   gfx::Rect bounds_;