Change ui cursor identifiers to an enum class.

ui/wm/core/cursor_manager.cc

 // Copyright (c) 2013 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/wm/core/cursor_manager.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "ui/aura/client/cursor_client_observer.h"
 #include "ui/wm/core/native_cursor_manager.h"
 #include "ui/wm/core/native_cursor_manager_delegate.h"
 
 namespace wm {
 
 namespace internal {
 
 // Represents the cursor state which is composed of cursor type, visibility, and
 // mouse events enable state. When mouse events are disabled, the cursor is
 // always invisible.
 class CursorState {
  public:
   CursorState()
-      : cursor_(ui::kCursorNone),
+      : cursor_(ui::CursorType::kNone),
         visible_(true),
         cursor_set_(ui::CURSOR_SET_NORMAL),
         mouse_events_enabled_(true),
-        visible_on_mouse_events_enabled_(true) {
-  }
+        visible_on_mouse_events_enabled_(true) {}
 
   gfx::NativeCursor cursor() const { return cursor_; }
   void set_cursor(gfx::NativeCursor cursor) { cursor_ = cursor; }
 
   bool visible() const { return visible_; }
   void SetVisible(bool visible) {
     if (mouse_events_enabled_)
       visible_ = visible;
     // Ignores the call when mouse events disabled.
   }
@@ skipping 184 matching lines @@
 
 void CursorManager::CommitCursorSet(ui::CursorSetType cursor_set) {
   current_state_->set_cursor_set(cursor_set);
 }
 
 void CursorManager::CommitMouseEventsEnabled(bool enabled) {
   current_state_->SetMouseEventsEnabled(enabled);
 }
 
 }  // namespace wm