Adding a Wayland basic toolkit

ui/wayland/wayland_widget.h

Index: ui/wayland/wayland_widget.h
diff --git a/ui/wayland/wayland_widget.h b/ui/wayland/wayland_widget.h
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index 0000000000000000000000000000000000000000..f274141d0f951f72f63dd598d8338c8a823af964
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+++ b/ui/wayland/wayland_widget.h
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+// 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_
+
+#include "ui/wayland/events/wayland_event.h"
+
+namespace ui {
+
+// WaylandWidget is an interface for processing Wayland events.
+class WaylandWidget {
+ public:
+  virtual ~WaylandWidget() {}
+
+  virtual void OnMotionNotify(WaylandEvent event) = 0;
+  virtual void OnButtonNotify(WaylandEvent event) = 0;
+  virtual void OnKeyNotify(WaylandEvent event) = 0;
+  virtual void OnPointerFocus(WaylandEvent event) = 0;
+  virtual void OnKeyboardFocus(WaylandEvent event) = 0;
+
+  virtual void OnGeometryChange(WaylandEvent event) = 0;
+};
+
+}  // namespace ui
+
+#endif  // UI_WAYLAND_WAYLAND_WIDGET_H_