Remove WAYLAND port

ui/wayland/wayland_widget.h

-// Copyright (c) 2011 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_WAYLAND_WAYLAND_WIDGET_H_
-#define UI_WAYLAND_WAYLAND_WIDGET_H_
-
-namespace base {
-namespace wayland {
-union WaylandEvent;
-}
-}
-
-namespace ui {
-
-// WaylandWidget is an interface for processing Wayland events.
-class WaylandWidget {
- public:
-  virtual ~WaylandWidget() {}
-
-  virtual void OnMotionNotify(base::wayland::WaylandEvent event) = 0;
-  virtual void OnButtonNotify(base::wayland::WaylandEvent event) = 0;
-  virtual void OnKeyNotify(base::wayland::WaylandEvent event) = 0;
-  virtual void OnPointerFocus(base::wayland::WaylandEvent event) = 0;
-  virtual void OnKeyboardFocus(base::wayland::WaylandEvent event) = 0;
-
-  virtual void OnGeometryChange(base::wayland::WaylandEvent event) = 0;
-};
-
-}  // namespace ui
-
-#endif  // UI_WAYLAND_WAYLAND_WIDGET_H_