Make a pure mojo::View version of the aura::Window FocusController.

mojo/services/window_manager/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 MOJO_SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_
+#define MOJO_SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_
+
+#include "ui/events/event_targeter.h"
+
+namespace mojo {
+
+class ViewTargeter : public ui::EventTargeter {
+ public:
+  ViewTargeter();
+  ~ViewTargeter() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ViewTargeter);
+};
+
+}  // namespace mojo
+
+#endif  // MOJO_SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_