Revert of Avoid two targeting phases in aura client-lib and EventProcessor.

ui/views/widget/root_view.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_VIEWS_WIDGET_ROOT_VIEW_H_
 #define UI_VIEWS_WIDGET_ROOT_VIEW_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 79 matching lines @@
   // Public API for broadcasting device scale factor change notifications to
   // this View hierarchy.
   void DeviceScaleFactorChanged(float device_scale_factor);
 
   // Overridden from FocusTraversable:
   FocusSearch* GetFocusSearch() override;
   FocusTraversable* GetFocusTraversableParent() override;
   View* GetFocusTraversableParentView() override;
 
   // Overridden from ui::EventProcessor:
-  ui::EventTarget* GetRootForEvent(ui::Event* event) override;
-  ui::EventTargeter* GetDefaultEventTargeter() override;
+  ui::EventTarget* GetRootTarget() override;
   void OnEventProcessingStarted(ui::Event* event) override;
   void OnEventProcessingFinished(ui::Event* event) override;
 
   // Overridden from View:
   const Widget* GetWidget() const override;
   Widget* GetWidget() override;
   bool IsDrawn() const override;
   const char* GetClassName() const override;
   void SchedulePaintInRect(const gfx::Rect& rect) override;
   bool OnMousePressed(const ui::MouseEvent& event) override;
@@ skipping 121 matching lines @@
   // Tracks drag state for a view.
   View::DragInfo drag_info_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(RootView);
 };
 
 }  // namespace internal
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_ROOT_VIEW_H_