Refactors away method implementations in ui::EventTargeter

ash/wm/resize_handle_window_targeter.h

 // Copyright 2014 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 ASH_WM_RESIZE_HANDLE_WINDOW_TARGETER_H_
 #define ASH_WM_RESIZE_HANDLE_WINDOW_TARGETER_H_
 
 #include "ash/wm/window_state_observer.h"
 #include "ui/aura/window_observer.h"
 #include "ui/aura/window_targeter.h"
@@ skipping 17 matching lines @@
   ~ResizeHandleWindowTargeter() override;
 
  private:
   // wm::WindowStateObserver:
   void OnPostWindowStateTypeChange(wm::WindowState* window_state,
                                    wm::WindowStateType old_type) override;
   // aura::WindowObserver:
   void OnWindowDestroying(aura::Window* window) override;
 
   // aura::WindowTargeter:
-  ui::EventTarget* FindTargetForLocatedEvent(ui::EventTarget* root,
-                                             ui::LocatedEvent* event) override;
-  bool SubtreeShouldBeExploredForEvent(ui::EventTarget* target,
+  aura::Window* FindTargetForLocatedEvent(aura::Window* window,
+                                          ui::LocatedEvent* event) override;
+  bool SubtreeShouldBeExploredForEvent(aura::Window* window,
                                        const ui::LocatedEvent& event) override;
 
   // The targeter does not take ownership of |window_| or
   // |immersive_controller_|.
   aura::Window* window_;
   gfx::Insets frame_border_inset_;
   ImmersiveFullscreenController* immersive_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(ResizeHandleWindowTargeter);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_RESIZE_HANDLE_WINDOW_TARGETER_H_