Change ui cursor identifiers to an enum class.

ui/base/cursor/ozone/cursor_data_factory_ozone.h

 // Copyright 2017 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_BASE_CURSOR_OZONE_CURSORD_DATA_FACTORY_OZONE_H_
 #define UI_BASE_CURSOR_OZONE_CURSORD_DATA_FACTORY_OZONE_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 46 matching lines @@
 // creating code, and builds the cross platform mojo data structure.
 class UI_BASE_EXPORT CursorDataFactoryOzone : public CursorFactoryOzone {
  public:
   CursorDataFactoryOzone();
   ~CursorDataFactoryOzone() override;
 
   // Converts a PlatformCursor back to a ui::CursorData.
   static const ui::CursorData& GetCursorData(PlatformCursor platform_cursor);
 
   // CursorFactoryOzone:
-  PlatformCursor GetDefaultCursor(int type) override;
+  PlatformCursor GetDefaultCursor(CursorType type) override;
   PlatformCursor CreateImageCursor(const SkBitmap& bitmap,
                                    const gfx::Point& hotspot,
                                    float bitmap_dpi) override;
   PlatformCursor CreateAnimatedCursor(const std::vector<SkBitmap>& bitmaps,
                                       const gfx::Point& hotspot,
                                       int frame_delay_ms,
                                       float bitmap_dpi) override;
   void RefImageCursor(PlatformCursor cursor) override;
   void UnrefImageCursor(PlatformCursor cursor) override;
 
  private:
   // Get cached BitmapCursorOzone for a default cursor.
-  scoped_refptr<CursorDataOzone> GetDefaultCursorInternal(int type);
+  scoped_refptr<CursorDataOzone> GetDefaultCursorInternal(CursorType type);
 
   // Default cursors are cached & owned by the factory.
-  typedef std::map<int, scoped_refptr<CursorDataOzone>> DefaultCursorMap;
+  typedef std::map<CursorType, scoped_refptr<CursorDataOzone>> DefaultCursorMap;
   DefaultCursorMap default_cursors_;
 
   DISALLOW_COPY_AND_ASSIGN(CursorDataFactoryOzone);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_CURSOR_OZONE_CURSORD_DATA_FACTORY_OZONE_H_