Change POINTER_ICON_STYLE enum to a type safe enum class

/* Pointer icon styles.

 * Must match the definition in android.view.PointerIcon.

 *

 * Due to backwards compatibility and public api constraints, this is a duplicate (but type safe)

 * definition of PointerIcon.java.

 *

 * TODO(b/235023317) move this definition to an aidl and statically assign to the below java public

 * api values.

 *

 * WARNING: Keep these definitions in sync with

 * frameworks/base/core/java/android/view/PointerIcon.java

 */

enum {

    POINTER_ICON_STYLE_CUSTOM = -1,

    POINTER_ICON_STYLE_NULL = 0,

    POINTER_ICON_STYLE_ARROW = 1000,

    POINTER_ICON_STYLE_CONTEXT_MENU = 1001,

    POINTER_ICON_STYLE_HAND = 1002,

    POINTER_ICON_STYLE_HELP = 1003,

    POINTER_ICON_STYLE_WAIT = 1004,

    POINTER_ICON_STYLE_CELL = 1006,

    POINTER_ICON_STYLE_CROSSHAIR = 1007,

    POINTER_ICON_STYLE_TEXT = 1008,

    POINTER_ICON_STYLE_VERTICAL_TEXT = 1009,

    POINTER_ICON_STYLE_ALIAS = 1010,

    POINTER_ICON_STYLE_COPY = 1011,

    POINTER_ICON_STYLE_NO_DROP = 1012,

    POINTER_ICON_STYLE_ALL_SCROLL = 1013,

    POINTER_ICON_STYLE_HORIZONTAL_DOUBLE_ARROW = 1014,

    POINTER_ICON_STYLE_VERTICAL_DOUBLE_ARROW = 1015,

    POINTER_ICON_STYLE_TOP_RIGHT_DOUBLE_ARROW = 1016,

    POINTER_ICON_STYLE_TOP_LEFT_DOUBLE_ARROW = 1017,

    POINTER_ICON_STYLE_ZOOM_IN = 1018,

    POINTER_ICON_STYLE_ZOOM_OUT = 1019,

    POINTER_ICON_STYLE_GRAB = 1020,

    POINTER_ICON_STYLE_GRABBING = 1021,

    POINTER_ICON_STYLE_SPOT_HOVER = 2000,

    POINTER_ICON_STYLE_SPOT_TOUCH = 2001,

    POINTER_ICON_STYLE_SPOT_ANCHOR = 2002,

enum class PointerIconStyle : int32_t {

    TYPE_CUSTOM = -1,

    TYPE_NULL = 0,

    TYPE_ARROW = 1000,

    TYPE_CONTEXT_MENU = 1001,

    TYPE_HAND = 1002,

    TYPE_HELP = 1003,

    TYPE_WAIT = 1004,

    TYPE_CELL = 1006,

    TYPE_CROSSHAIR = 1007,

    TYPE_TEXT = 1008,

    TYPE_VERTICAL_TEXT = 1009,

    TYPE_ALIAS = 1010,

    TYPE_COPY = 1011,

    TYPE_NO_DROP = 1012,

    TYPE_ALL_SCROLL = 1013,

    TYPE_HORIZONTAL_DOUBLE_ARROW = 1014,

    TYPE_VERTICAL_DOUBLE_ARROW = 1015,

    TYPE_TOP_RIGHT_DOUBLE_ARROW = 1016,

    TYPE_TOP_LEFT_DOUBLE_ARROW = 1017,

    TYPE_ZOOM_IN = 1018,

    TYPE_ZOOM_OUT = 1019,

    TYPE_GRAB = 1020,

    TYPE_GRABBING = 1021,

    TYPE_SPOT_HOVER = 2000,

    TYPE_SPOT_TOUCH = 2001,

    TYPE_SPOT_ANCHOR = 2002,

};

} // namespace android