XKB implementation of Ozone key layout.

ui/events/ozone/layout/xkb/xkb_evdev_codes.cc

+// 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.
+
+#include "ui/events/ozone/layout/xkb/xkb_evdev_codes.h"
+
+#include "ui/events/keycodes/dom4/keycode_converter.h"
+
+namespace ui {
+
+XkbEvdevCodes::XkbEvdevCodes() {
+  invalid_xkb_keycode_ =
+      static_cast<xkb_keycode_t>(KeycodeConverter::InvalidNativeKeycode());
+}
+
+XkbEvdevCodes::~XkbEvdevCodes() {
+}
+
+xkb_keycode_t XkbEvdevCodes::DomCodeToXkbKeyCode(DomCode dom_code) const {
+  // This assumes KeycodeConverter has been built with evdev/xkb codes.
+  return static_cast<xkb_keycode_t>(
+      KeycodeConverter::DomCodeToNativeKeycode(dom_code));
+}
+
+}  // namespace ui