wayland: define base:NativeEvent for Wayland

base/wayland/wayland_event.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_EVENTS_WAYLAND_EVENT_H_
-#define UI_WAYLAND_EVENTS_WAYLAND_EVENT_H_
+#ifndef BASE_WAYLAND_WAYLAND_EVENT_H_
+#define BASE_WAYLAND_WAYLAND_EVENT_H_
 
-#include <linux/input.h>
 #include <stdint.h>
 
 // Wayland event information is being passed in as arguments to the callbacks.
 // (See wayland_input_device.{h,cc} for information on the callbacks and how
 // events are processed.)
 // In order to provide a more generic look for events we wrap these arguments
 // in specific event structs. Then define a WaylandEvent as a union of all
 // types of events that Wayland will send.
 //
 // The following fields are common for most event types and their use is
 // similar:
 // - time:
 //    The time of the event. This should be monotonically increasing.
 // - state:
 //    The value of the button event as given by evdev. This is 0 if button
 //    isn't pressed.
 // - modifiers:
 //    Stores all the keyboard modifiers (Ctrl, Alt, Shift, ...) currently
 //    active. The modifiers are values as defined by xkbcommon.
 
-namespace ui {
+namespace base {
+namespace wayland {
 
 // Types of events Wayland will send
 enum WaylandEventType {
   WAYLAND_BUTTON,
   WAYLAND_KEY,
   WAYLAND_MOTION,
   WAYLAND_POINTER_FOCUS,
   WAYLAND_KEYBOARD_FOCUS,
   WAYLAND_GEOMETRY_CHANGE,
 };
 
-// These are the mouse events expected. The event type Wayland sends is an
-// evdev event. The following is the correct mapping from evdev to expected
-// events type.
-enum WaylandEventButtonType {
-  LEFT_BUTTON     = BTN_LEFT,
-  MIDDLE_BUTTON   = BTN_RIGHT,
-  RIGHT_BUTTON    = BTN_MIDDLE,
-  SCROLL_UP       = BTN_SIDE,
-  SCROLL_DOWN     = BTN_EXTRA,
-};
-
 struct WaylandEventButton {
   WaylandEventType type;
   uint32_t time;
   // WaylandEventButtonType defines some of the values button can take
   uint32_t button;
   uint32_t state;
   uint32_t modifiers;
   int32_t x;
   int32_t y;
 };
@@ skipping 53 matching lines @@
 union WaylandEvent {
   WaylandEventType            type;
   WaylandEventButton          button;
   WaylandEventKey             key;
   WaylandEventMotion          motion;
   WaylandEventPointerFocus    pointer_focus;
   WaylandEventKeyboardFocus   keyboard_focus;
   WaylandEventGeometryChange  geometry_change;
 };
 
-}  // namespace ui
+}  // namespace wayland
+}  // namespace base
 
-#endif  // UI_WAYLAND_EVENTS_WAYLAND_EVENT_H_
+#endif  // BASE_WAYLAND_WAYLAND_EVENT_H_