It is time.

ui/views/widget/root_view_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 UI_VIEWS_WIDGET_ROOT_VIEW_TARGETER_H_
-#define UI_VIEWS_WIDGET_ROOT_VIEW_TARGETER_H_
-
-#include "ui/views/view_targeter.h"
-#include "ui/views/views_export.h"
-
-namespace views {
-
-namespace internal {
-class RootView;
-}  // namespace internal
-
-class View;
-class ViewTargeterDelegate;
-
-// A derived class of ViewTargeter that defines targeting logic for cases
-// needing to access the members of RootView. For example, when determining the
-// target of a gesture event, we need to know if a previous gesture has already
-// established the View to which all subsequent gestures should be targeted.
-class VIEWS_EXPORT RootViewTargeter : public ViewTargeter {
- public:
-  RootViewTargeter(ViewTargeterDelegate* delegate,
-                   internal::RootView* root_view);
-  virtual ~RootViewTargeter();
-
- private:
-  // ViewTargeter:
-  virtual View* FindTargetForGestureEvent(
-      View* root,
-      const ui::GestureEvent& gesture) override;
-  virtual ui::EventTarget* FindNextBestTargetForGestureEvent(
-      ui::EventTarget* previous_target,
-      const ui::GestureEvent& gesture) override;
-
-  // A pointer to the RootView on which |this| is installed.
-  internal::RootView* root_view_;
-
-  DISALLOW_COPY_AND_ASSIGN(RootViewTargeter);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_WIDGET_ROOT_VIEW_TARGETER_H_