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

ui/aura/root_window_host_x11.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_AURA_ROOT_WINDOW_HOST_X11_H_
 #define UI_AURA_ROOT_WINDOW_HOST_X11_H_
 
 #include <X11/Xlib.h>
 
 #include <vector>
@@ skipping 25 matching lines @@
                                       public base::MessageLoop::Dispatcher,
                                       public EnvObserver {
  public:
   explicit RootWindowHostX11(const gfx::Rect& bounds);
   virtual ~RootWindowHostX11();
 
   // Overridden from Dispatcher overrides:
   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;
   virtual void Hide() OVERRIDE;
   virtual void ToggleFullScreen() OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
   virtual gfx::Insets GetInsets() const OVERRIDE;
   virtual void SetInsets(const gfx::Insets& insets) OVERRIDE;
   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
   virtual void SetCapture() OVERRIDE;
   virtual void ReleaseCapture() OVERRIDE;
   virtual void SetCursor(gfx::NativeCursor cursor_type) OVERRIDE;
   virtual bool QueryMouseLocation(gfx::Point* location_return) OVERRIDE;
   virtual bool ConfineCursorToRootWindow() OVERRIDE;
   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;
 
   // EnvObserver overrides.
   virtual void OnWindowInitialized(Window* window) OVERRIDE;
   virtual void OnRootWindowInitialized(RootWindow* root_window) OVERRIDE;
  private:
   class MouseMoveFilter;
 
@@ skipping 17 matching lines @@
   // dispatches the event to RootWindowHostDelegate.
   void TranslateAndDispatchMouseEvent(ui::MouseEvent* event);
 
   // Update is_internal_display_ based on delegate_ state
   void UpdateIsInternalDisplay();
 
   // Set the CrOS touchpad "tap paused" property. It is used to temporarily
   // turn off the Tap-to-click feature when the mouse pointer is invisible.
   void SetCrOSTapPaused(bool state);
 
-  RootWindowHostDelegate* delegate_;
-
   // The display and the native X window hosting the root window.
   XDisplay* xdisplay_;
   ::Window xwindow_;
 
   // The native root window.
   ::Window x_root_window_;
 
   // Current Aura cursor.
   gfx::NativeCursor current_cursor_;
 
@@ skipping 32 matching lines @@
 namespace test {
 
 // Set the default value of the override redirect flag used to
 // create a X window for RootWindowHostX11.
 AURA_EXPORT void SetUseOverrideRedirectWindowByDefault(bool override_redirect);
 
 }  // namespace test
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_HOST_X11_H_