Change ui cursor identifiers to an enum class.

services/ui/ws/display.cc

 // Copyright 2015 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 "services/ui/ws/display.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 19 matching lines @@
 #include "ui/display/screen.h"
 
 #if defined(USE_OZONE)
 #include "ui/ozone/public/ozone_platform.h"
 #endif
 
 namespace ui {
 namespace ws {
 
 Display::Display(WindowServer* window_server)
-    : window_server_(window_server),
-      last_cursor_(mojom::CursorType::CURSOR_NULL) {
+    : window_server_(window_server), last_cursor_(mojom::CursorType::kNull) {
   window_server_->window_manager_window_tree_factory_set()->AddObserver(this);
   window_server_->user_id_tracker()->AddObserver(this);
 }
 
 Display::~Display() {
   window_server_->user_id_tracker()->RemoveObserver(this);
 
   window_server_->window_manager_window_tree_factory_set()->RemoveObserver(
       this);
 
@@ skipping 360 matching lines @@
 
   UserActivityMonitor* activity_monitor =
       window_server_->GetUserActivityMonitorForUser(
           window_server_->user_id_tracker()->active_id());
   activity_monitor->OnUserActivity();
   return EventDispatchDetails();
 }
 
 }  // namespace ws
 }  // namespace ui